+publisher:"University of Florida" +contributor:("Washburn, Scott S")

University of Florida

1. Hill, Corey A. Lane Changing on Freeways.

Degree: M.E., Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

► Lane changing models are a significant component of microscopic traffic simulation. Understanding the details of this fundamental maneuver is important for accurate modeling in simulation.… (more)

Subjects/Keywords: Aircraft maneuvers; Cluster analysis; Gap acceptance; Histograms; Modeling; Observational research; Sample size; Simulations; Speed; Standard deviation; cluster – congested – discretionary – lane-changing – mandatory – uncongested; City of Orlando ( local )

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APA (6^th Edition):

Hill, C. A. (2012). Lane Changing on Freeways. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044750

Chicago Manual of Style (16^th Edition):

Hill, Corey A. “Lane Changing on Freeways.” 2012. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044750.

MLA Handbook (7^th Edition):

Hill, Corey A. “Lane Changing on Freeways.” 2012. Web. 05 Mar 2021.

Vancouver:

Hill CA. Lane Changing on Freeways. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044750.

Council of Science Editors:

Hill CA. Lane Changing on Freeways. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044750

University of Florida

2. Mamun, Md Shahid. Impact Analysis of Site Development and Mileage Fee.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044466

► This dissertation focuses on two types of impact studies: one is related to site developments; the other examines the socioeconomic effects of mileage fees. More… (more)

▼ This dissertation focuses on two types of impact studies: one is related to site developments; the other examines the socioeconomic effects of mileage fees. More specifically, in the first part, the link distribution percentage and special generator methods for performing traffic impact analysis are compared and enhanced; and in the second part, the impacts of adopting a mileage fee in Florida are assessed. In Florida, both the link distribution percentage and special generator methods are used to conduct traffic impact analysis. However, there is no systematic research to show whether these two methods produce similar results or if one outperforms the other. This dissertation describes an empirical study that compares these two methods. Based on the study, these two methods are observed to produce fairly consistent estimates of traffic impacts caused by the chosen hypothetical scenarios. As the link distribution percentage approach is easier to implement,this dissertation recommends this less cumbersome approach. However, both of the above mentioned approaches estimate development trips on each link from the path flow or origin-destination (O-D) specific link flow distribution. Since these two flow distributions may not be uniquely determined, an open question remains regarding the selection of a particular flow distribution as the basis for traffic impact studies. This dissertation suggests using the mean of all the path or O-D specific user equilibrium solutions as the basis for traffic impact studies. The second part of the dissertation examines the impacts of implementing mileage fees in Florida. Four different mileage fee structures are tested. The result shows that the distributional impacts of the revenue-neutral fee are negligible. However, flat fees are found to be regressive at higher rates. In contrast, step fee, a two-level tariff structure is found to be less regressive. Fees based on vehicle fuel efficiency and vehicle type are found to be environmentally friendly, but areas regressive as flat fees. This dissertation suggests that a complex mileage fee structure is needed to balance the spatial distribution of the impacts,reduce the regressive nature of the fee, generate sufficient revenue, protect the environment, and achieve other objectives simultaneously. ( en ) Advisors/Committee Members: Yin, Yafeng (committee chair), Elefteriadou, Ageliki L (committee member), Washburn, Scott S (committee member), Srinivasan, Sivaramakrishnan (committee member), Lawphongpanich, Siriphong (committee member).

Subjects/Keywords: Business revenue; Consumer surplus; Entropy; Fees; Flow distribution; Fuel efficiency; Social welfare; Taxes; Transportation; Vehicles; average – distribution – fees – generator – link – meue – mileage – nonuniqueness – solution – special – tia – vmt; Town of Suwannee ( local )

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APA (6^th Edition):

Mamun, M. S. (2012). Impact Analysis of Site Development and Mileage Fee. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044466

Chicago Manual of Style (16^th Edition):

Mamun, Md Shahid. “Impact Analysis of Site Development and Mileage Fee.” 2012. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044466.

MLA Handbook (7^th Edition):

Mamun, Md Shahid. “Impact Analysis of Site Development and Mileage Fee.” 2012. Web. 05 Mar 2021.

Vancouver:

Mamun MS. Impact Analysis of Site Development and Mileage Fee. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044466.

Council of Science Editors:

Mamun MS. Impact Analysis of Site Development and Mileage Fee. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044466

University of Florida

3. Li, Jing. Two-Lane Highway Simulation and Analysis.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044109

► With the rapid growth of urban areas and the corresponding traffic demands, rural areas are experiencing significant growth as well. This growth is now resulting… (more)

▼ With the rapid growth of urban areas and the corresponding traffic demands, rural areas are experiencing significant growth as well. This growth is now resulting in congestion on facilities that did not have any before. One area that is becoming a concern, particularly in Florida, is rural areas transitioning into more developed areas. Access to these areas is usually by two-lane highways, and sometimes, there may be an occasional traffic signal within such facilities. Appropriate analysis tools are very important for researchers to evaluate the operations on complex two-lane highways. However, the current state-of-the-art two-lane highway simulation tool, TWOPAS, is not capable of modeling signalized intersections within a two-lane highway facility. Meanwhile, the two-lane highway analysis procedure in the current Highway Capacity Manual (HCM) does not account for interruptions to the flow, such as from signals. To further investigate the traffic operation within these areas, a simulation tool and a facility-level analysis methodology are desired. In this study, two-lane highway modeling capability is incorporated into CORSIM by making the necessary additions and modifications to the existing CORSIM software code base. The primary issues addressed here are modeling passing maneuvers in an oncoming lane or a passing-lane section. Preliminary testing in this part showed that the results produced by the developed two-lane highway modeling logic are reasonably consistent with expected traffic flow theory and field observations discussed in the literature. Based on the new modeling capability, an analytical methodology for analyzing two-lane highway facilities with various features was developed based upon the previous study done by Yu and Washburn (2009). Specifically, the vehicular data generated by CORSIM was used to distinguish the influence area of a signalized intersection from basic two-lane highway segments to accomplish facility segmentation. A two-lane highway facility combined with signalized intersections can then be evaluated based on the aggregate service measure(s) over different types of segments. The service measure percent delay was examined and verified for its efficacy in assessing the operations on complex two-lane highway facilities, especially the ones with signalized intersections. ( en ) Advisors/Committee Members: Washburn, Scott S (committee chair), Srinivasan, Sivaramakrishnan (committee member), Yin, Yafeng (committee member), Elefteriadou, Ageliki L (committee member), Steiner, Ruth L (committee member).

Subjects/Keywords: Aircraft maneuvers; Flow velocity; Left turns; Modeling; Signalized intersections; Signals; Simulations; Speed; Two lane highways; Vehicles; analytical – highway – methodology – simulation – two-lane

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APA (6^th Edition):

Li, J. (2012). Two-Lane Highway Simulation and Analysis. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044109

Chicago Manual of Style (16^th Edition):

Li, Jing. “Two-Lane Highway Simulation and Analysis.” 2012. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044109.

MLA Handbook (7^th Edition):

Li, Jing. “Two-Lane Highway Simulation and Analysis.” 2012. Web. 05 Mar 2021.

Vancouver:

Li J. Two-Lane Highway Simulation and Analysis. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044109.

Council of Science Editors:

Li J. Two-Lane Highway Simulation and Analysis. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044109

University of Florida

4. Dhakar, Nagendra S. Route Choice Modeling Using GPS Data.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044933

► The advent of GPS-based travel surveys offers an opportunity to develop empirically-rich route-choice models. However, the GPS traces must first be mapped to the roadway… (more)

▼ The advent of GPS-based travel surveys offers an opportunity to develop empirically-rich route-choice models. However, the GPS traces must first be mapped to the roadway network, map-matching, to identify the network-links actually traversed. In the study, two enhanced map-matching algorithms are implemented and compared for their operational performance using data from a large-scale GPS survey. Once the traversed path is determined, the next step is to determine the other options (routes), choice set generation, that were available to the traveler for making the trip. For this, the enhanced version of the Breadth First Search Link Elimination (BFS-LE) algorithm is implemented. The data assembled from the two steps, map-matching and choice set generation, are then used for developing route choice. The original Path Size Logit (PSL) model is used for developing models for route choice. The PSL models are estimated for three different choice set sizes (15 alternatives, 10 alternatives, and 5 alternatives). The utility functions are expressed in terms of route attributes (time, longest leg time, distance, number of intersections,left turns, right turns, time by facility type, and circuity), trip characteristics (home-based/ non-home-based, weekday/weekend, and peak/off-peak) and traveler’s demographics (gender, age, employment, and household income). The estimation results indicate expected effects. Specifically, free-flow travel time, left turns, right turns, intersections, and circuity are found negatively associated with the attractiveness of a route. Also, the travel time on local roads was found to be a positive factor in choosing a route. A positive sign on the path size attribute indicates that the route with less similarity with the alternatives is more likely to be chosen. Further, travelers indicated less sensitivity to the travel time during peak period, thus suggesting a congestion effect. Trips going to home were the least sensitive to the travel time and right turns than the other trips. While determining a route, males cared less about the intersections, proportion of time on local roads and circuity than females. Further, sensitivity to intersections in a route decreased with age.Compared to home-based trips, non-home-based trips were less sensitive to intersections and time on local roads. Across different choice set sizes, the effects were more or less similar except that some effects became insignificant. In terms of the predictive quality, when the shortest time path was very close to the chosen route, the probabilistic methods produced routes with lower overlaps. However,the overlaps were still reasonably high. For the other cases, the probabilistic methods predicted better overlaps than the deterministic method. Further, on average, there was a probability of 50% that the predicted route will outperform the shortest time path. We envision this study as an important contribution towards the development of empirically rich route choice models. With increasing numbers of GPS surveys and benefits of… Advisors/Committee Members: Srinivasan, Sivaramakrishnan (committee chair), Yin, Yafeng (committee member), Elefteriadou, Ageliki L (committee member), Washburn, Scott S (committee member), Bejleri, Ilir (committee member).

Subjects/Keywords: Genetic mapping; Global positioning systems; Modeling; Observed choices; Roads; Route choice; Transportation; Travel; Travel time; Travelers; bfs-le – choice – forecasting – gis – gps – map-matching – modeling – psl – route

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APA (6^th Edition):

Dhakar, N. S. (2012). Route Choice Modeling Using GPS Data. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044933

Chicago Manual of Style (16^th Edition):

Dhakar, Nagendra S. “Route Choice Modeling Using GPS Data.” 2012. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044933.

MLA Handbook (7^th Edition):

Dhakar, Nagendra S. “Route Choice Modeling Using GPS Data.” 2012. Web. 05 Mar 2021.

Vancouver:

Dhakar NS. Route Choice Modeling Using GPS Data. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044933.

Council of Science Editors:

Dhakar NS. Route Choice Modeling Using GPS Data. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044933

University of Florida

5. Lim, Kwangkyun. Intra-Household Interactions in Social-Recreational Activities and Travel.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044974

► This research explains interactions among household membersduring daily activity- and travel-related decision-making process with focus onsocial-recreational activities. Withinthe broad spectrum of modeling social-recreational activities and… (more)

▼ This research explains interactions among household membersduring daily activity- and travel-related decision-making process with focus onsocial-recreational activities. Withinthe broad spectrum of modeling social-recreational activities and travel, thisstudy focuses on three major aspects: Modeling the Generation ofSocial-Recreational Patterns, Modeling the Choice of Household Vehicle for Social-RecreationalTours, and Modeling the Choice of Time of Day for Joint Social-RecreationalTours. This study uses data from the 2009 National Household Travel Surveyconducted in the United States for the estimation of all models. The empiricalscope of this work is largely restricted to the analysis of the behavior ofcouple households (two-adults comprising a male-female couple with or withoutchildren). In the context of the generation of social-recreationalactivity patterns, interpersonal interactions within a household are largely inthe form of trade-offs between solo and joint activity participation decisions.This research compares fourmethods, depending on different decision-making units, that are capable ofcapturing such interactions between household heads: multinomial logit models,multilinear logit models, parallel choice constrained logit models, andtri-variate binary probit models. We compared the models in terms of predictiveabilities and sensitivities to specific explanatory factors. The next aspect of the research is the modeling of household vehicle choice. Two modelcomponents are developed that can be applied within any operationalactivity-based modeling framework. One allocates each vehicle to a primarydriver in the household (long-term, household-level model). The second modelallocates a vehicle for the joint tours (short-term, tour-level model). Both modelswere estimated using the unlabeled binary-logit approach. This study is furtherlimited to households with two-cars. The final component of this research is on the choice of time-of-day for joint tours. Jointtravel requires the temporal synchronization of travel of all members of thetravel party. This study describes how the time constraints of multiple personscan be effectively accommodated into determining the choice set and,subsequently, the choice of timing of joint tours. In this study, an alternatetwo-step approach is proposed. The first model predicts the time-window chosenfor pursuing the joint discretionary tour and the second model locates the tourwithin the time window by determining the start- and end-times of the toursimultaneously on a continuous scale. Overallthis researchcontributes to understanding of the social-recreational activity-travelpatterns and presents methods to effectively represent these choices within aconventional activity-based modeling framework. ( en ) Advisors/Committee Members: Srinivasan, Sivaramakrishnan (committee chair), Yin, Yafeng (committee member), Elefteriadou, Ageliki L (committee member), Washburn, Scott S (committee member), Steiner, Ruth L (committee member).

Subjects/Keywords: Economic models; Modeling; Predictive modeling; Social interaction; Statistical models; Time windows; Tours; Travel; Vehicles; Women; activity-based – interaction – intra-household

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APA (6^th Edition):

Lim, K. (2012). Intra-Household Interactions in Social-Recreational Activities and Travel. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044974

Chicago Manual of Style (16^th Edition):

Lim, Kwangkyun. “Intra-Household Interactions in Social-Recreational Activities and Travel.” 2012. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044974.

MLA Handbook (7^th Edition):

Lim, Kwangkyun. “Intra-Household Interactions in Social-Recreational Activities and Travel.” 2012. Web. 05 Mar 2021.

Vancouver:

Lim K. Intra-Household Interactions in Social-Recreational Activities and Travel. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044974.

Council of Science Editors:

Lim K. Intra-Household Interactions in Social-Recreational Activities and Travel. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044974

University of Florida

6. Carrick, Grady Thomas. The Impacts of Police Traffic Stops on Freeway Operations and Capacity.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044040

► Some causes of non-recurring road congestion, like work zone activities, weather, traffic crashes, and vehicle disablements are well researched and quantifiable. Police traffic stops occur… (more)

Subjects/Keywords: Free flow speeds; Freeways; Highway traffic; Motor vehicle traffic; Police; Roads; Speed; Traffic congestion; Traffic flow; Transportation; capacity – emergency – enforcement – freeway – lighting – move – police – stop – traffic

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APA (6^th Edition):

Carrick, G. T. (2012). The Impacts of Police Traffic Stops on Freeway Operations and Capacity. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044040

Chicago Manual of Style (16^th Edition):

Carrick, Grady Thomas. “The Impacts of Police Traffic Stops on Freeway Operations and Capacity.” 2012. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044040.

MLA Handbook (7^th Edition):

Carrick, Grady Thomas. “The Impacts of Police Traffic Stops on Freeway Operations and Capacity.” 2012. Web. 05 Mar 2021.

Vancouver:

Carrick GT. The Impacts of Police Traffic Stops on Freeway Operations and Capacity. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044040.

Council of Science Editors:

Carrick GT. The Impacts of Police Traffic Stops on Freeway Operations and Capacity. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044040

University of Florida

7. Osborne, Robin P. Implementing Toll Plaza Analysis into FREEPLAN.

Degree: M.E., Civil Engineering - Civil and Coastal Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044312

► The planning, design, construction and maintenance of roadways is an extremely expensive process. As funds become more and more difficult to obtain via conventional methods,… (more)

Subjects/Keywords: City squares; Free flow speeds; Manuals; Motor vehicle traffic; Service time; Simulations; Speed; Toll plazas; Tolls; Trucks; freeplan – plaza – toll; City of Orlando ( local )

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APA (6^th Edition):

Osborne, R. P. (2012). Implementing Toll Plaza Analysis into FREEPLAN. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044312

Chicago Manual of Style (16^th Edition):

Osborne, Robin P. “Implementing Toll Plaza Analysis into FREEPLAN.” 2012. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0044312.

MLA Handbook (7^th Edition):

Osborne, Robin P. “Implementing Toll Plaza Analysis into FREEPLAN.” 2012. Web. 05 Mar 2021.

Vancouver:

Osborne RP. Implementing Toll Plaza Analysis into FREEPLAN. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0044312.

Council of Science Editors:

Osborne RP. Implementing Toll Plaza Analysis into FREEPLAN. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044312

University of Florida

8. Modi, Vipul. Comparison of Freeway Capacity Estimation Methods.

Degree: MS, Civil Engineering - Civil and Coastal Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0025105

► The capacity of a freeway segment is a critical factor for the assessment of the traffic flow operations on freeway facilities. The Highway Capacity Manual… (more)

▼ The capacity of a freeway segment is a critical factor for the assessment of the traffic flow operations on freeway facilities. The Highway Capacity Manual HCM (2000) is considered to be one of the authoritative sources on capacity values for a variety of roadway types in the U.S. It provides a single set of capacity values for basic freeway segments as a function of free-flow speed. These values are considered to be reasonably representative values for freeways located throughout the U.S., but it is recognized that lower or higher values may be more appropriate in any given location. However, the HCM does not provide any guidance on how its recommended values can be adjusted to reflect significant differences in capacity due to local conditions, nor how to directly measure or estimate capacity values. The objective of this research was to investigate various methods that can be used to arrive at an estimate of freeway capacity values, and to recommend one of these methods to the FDOT for use in developing their own estimates of capacity for Florida freeways. Three methods were investigated: one that fits a mathematical function to plotted speed-flow data points, from which the apex of the function is taken as capacity; one that estimates a breakdown probability distribution based on flow rates preceding breakdown events, from which capacity can be taken to correspond to a certain percentile value of the breakdown probability distribution; and one that uses a simple average of a specified percentage of the highest flow rates observed at a site. Based on the various advantages and disadvantages of each of the methods, the following was concluded. The method based on identifying breakdown events is most suitable for the determination of capacity at a site where a detailed operational analysis is desired. For example, at sites where different operational treatments (e.g., ramp metering) are going to be tried in an effort to improve operations and an estimate of capacity that is as accurate as possible is desired. The method based on fitting a mathematical function to speed-flow data is not as suitable as the previous method for detailed evaluations of operational treatments, but is still appropriate for the determination of general capacity estimates. The average maximum flow rate capacity estimation method is most suitable for planning and preliminary engineering applications. ( en ) Advisors/Committee Members: Washburn, Scott S. (committee chair), Elefteriadou, Ageliki L. (committee member).

Subjects/Keywords: Analytical estimating; Estimation methods; Flow velocity; Free flow speeds; Freeways; Photographs; Speed; Time series models; Traffic estimation; Trucks; averaging, basic, capacity, freeway, stochastic, vam; City of Jacksonville ( local )

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APA (6^th Edition):

Modi, V. (2009). Comparison of Freeway Capacity Estimation Methods. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0025105

Chicago Manual of Style (16^th Edition):

Modi, Vipul. “Comparison of Freeway Capacity Estimation Methods.” 2009. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0025105.

MLA Handbook (7^th Edition):

Modi, Vipul. “Comparison of Freeway Capacity Estimation Methods.” 2009. Web. 05 Mar 2021.

Vancouver:

Modi V. Comparison of Freeway Capacity Estimation Methods. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0025105.

Council of Science Editors:

Modi V. Comparison of Freeway Capacity Estimation Methods. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0025105

University of Florida

9. Cruz-Casas, Carlos O. Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections.

Degree: M.E., Civil Engineering - Civil and Coastal Engineering, 2007, University of Florida

URL: https://ufdc.ufl.edu/UFE0021137

► Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of… (more)

▼ Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Engineering DEVELOPMENT OF PASSENGER CAR EQUIVALENCY VALUES FOR TRUCKS AT SIGNALIZED INTERSECTIONS By Carlos O. Cruz-Casas August 2007 Chair: Scott S. Washburn Major: Civil Engineering Large trucks have considerably different size and performance characteristics than passenger cars. Consequently, these trucks can have a significant impact on traffic operations. It is therefore essential to properly account for this impact in the traffic operations analysis in order to reflect the operational quality of the roadway as accurately as possible. Signalized intersections are one roadway facility that can be particularly sensitive to the presence of commercial truck traffic. The most common method used for the analysis of signalized intersections is contained in the Highway Capacity Manual (HCM). In this method, the base saturation flow rate of the signalized intersection is defined in units of passenger cars per hour green per lane (pc/hg/ln). To account for the presence of large trucks in the traffic stream, the HCM includes a Passenger Car Equivalency (PCE) value. In the current edition of the HCM, a PCE value of 2.0 is applied for all large trucks, with no distinction between different sizes of trucks. Some transportation professionals have questioned the validity of this PCE value recommended by the HCM. They are concerned that the impact of trucks at signalized intersections is being under-estimated. If this is the case, then capacity is being over-estimated and intersections are not being adequately designed. The primary objective of this research was to determine appropriate truck PCE values to apply for signalized intersection analysis. These PCE values were classified by three different categories of truck sizes and performances. Additionally, a general PCE value with only one truck category was developed for planning purposes and/or a less detailed analysis. The development of the PCE values was based on the relative headway concept, as defined in the HCM. The results of this study are based primarily on data generated from a custom simulation program. However, a considerable amount of field data was collected for the purpose of simulation calibration. The PCE values determined from this study are 1.8, 2.2, and 2.8 for small trucks, medium trucks, and large trucks, respectively. Additionally, an equation was developed to calculate start-up lost time that accounts for the impact of trucks at the front of the queue, as opposed to the standard 2.0 seconds recommended by the HCM. Furthermore, based on the field data collected, it was found that the base saturation flow rate value of 1900 pc/hg/ln recommended by the HCM appears to be quite optimistic. ( en ) Advisors/Committee Members: Washburn, Scott S. (committee chair), Yin, Yafeng (committee member), Elefteriadou, Ageliki L. (committee member).

Subjects/Keywords: Data collection; Headway; Modeling; Motor vehicle traffic; Railroad passenger cars; Simulations; Speed; Start up firms; Statistical models; Trucks; pce

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APA (6^th Edition):

Cruz-Casas, C. O. (2007). Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021137

Chicago Manual of Style (16^th Edition):

Cruz-Casas, Carlos O. “Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections.” 2007. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0021137.

MLA Handbook (7^th Edition):

Cruz-Casas, Carlos O. “Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections.” 2007. Web. 05 Mar 2021.

Vancouver:

Cruz-Casas CO. Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections. [Internet] [Masters thesis]. University of Florida; 2007. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0021137.

Council of Science Editors:

Cruz-Casas CO. Development of Passenger Car Equivalency Values for Trucks at Signalized Intersections. [Masters Thesis]. University of Florida; 2007. Available from: https://ufdc.ufl.edu/UFE0021137

University of Florida

10. Osei-Asamoah, Abigail. Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections.

Degree: MS, Civil Engineering - Civil and Coastal Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0024165

► Signalized intersections are arguably the most critical components of an arterial. One of the major factors that affect the capacity of a signalized intersection is… (more)

Subjects/Keywords: Experiment design; Flow velocity; Left turn lanes; Left turns; Mathematical variables; Modeling; Parametric models; Signalized intersections; Signals; Simulations; capacity, discharge, left, rates, signalized, simulation, spillover, through, turn

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APA (6^th Edition):

Osei-Asamoah, A. (2009). Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024165

Chicago Manual of Style (16^th Edition):

Osei-Asamoah, Abigail. “Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections.” 2009. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0024165.

MLA Handbook (7^th Edition):

Osei-Asamoah, Abigail. “Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections.” 2009. Web. 05 Mar 2021.

Vancouver:

Osei-Asamoah A. Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0024165.

Council of Science Editors:

Osei-Asamoah A. Impact of Left Turn Spillover on Through Movement Discharge at Signalized Intersections. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0024165

University of Florida

11. Hiles, Thomas. Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control.

Degree: M.E., Civil Engineering - Civil and Coastal Engineering, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0021820

► With an aging roadway infrastructure and continual urban development, construction work zones are a common fixture on our roadway system. Work zone delays have a… (more)

▼ With an aging roadway infrastructure and continual urban development, construction work zones are a common fixture on our roadway system. Work zone delays have a negative effect on not only the transportation network, but also on the national economy as well. While there have been a number of studies conducted on roadway work zone operations, very few of them have focused on two-lane roadway work zones, where one lane is closed and traffic flow must alternate on one lane. These types of work zones usually rely on the use of flagging personnel to alternate the flow of traffic on the single open lane. Thus, the analysis of this type of work zone is quite different from that of multilane roadways. While a couple of analysis methods do exist for this type of work zone, there is no commonly accepted or nationally adopted method. The Florida Department of Transportation (FDOT) developed their own method, which is included in their Plans Preparation Manual (PPM). This method is fairly simple and considers a limited number of factors. Consequently, there is a very limited range of field conditions for which this method will yield reasonably accurate results. Furthermore, the only output from method is work zone capacity. The objective of this project was to develop an analysis procedure for two-lane roadway work zones (with a lane closure) that was more robust, both in terms of inputs and outputs, than the FDOT's current PPM method. The FDOT also had the requirement that this new procedure still be easy to use. A custom microscopic simulation program was developed to generate the data used in the development of the models contained in the new analysis procedure. Specifically, models were developed to estimate saturation flow rate/capacity, queue delay, and queue length. The analysis procedure also employs calculation elements consistent with the analysis of signalized intersections. The analysis procedure has been implemented into an easy to use spreadsheet format. This procedure is much more robust than the current PPM procedure, and the results match well with the simulation data. For situations that are not handled by the analytical procedure, such as oversaturated conditions, the simulation program can be used instead. ( en ) Advisors/Committee Members: Washburn, Scott S. (committee chair), Elefteriadou, Ageliki L. (committee member), Heaslip, Kevin (committee member).

Subjects/Keywords: Flow velocity; Headway; Modeling; Motor vehicle traffic; Roads; Simulations; Speed; Traffic delay; Traffic estimation; Vehicles; closure, flagging, flagsim, lane, microscopic, simulation, two, work, zone

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hiles, T. (2008). Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021820

Chicago Manual of Style (16^th Edition):

Hiles, Thomas. “Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control.” 2008. Masters Thesis, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0021820.

MLA Handbook (7^th Edition):

Hiles, Thomas. “Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control.” 2008. Web. 05 Mar 2021.

Vancouver:

Hiles T. Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0021820.

Council of Science Editors:

Hiles T. Analysis of Two-Lane Roadway Lane Closure Operations under Flagging Control. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0021820

University of Florida

12. Lee, Seok. Exploiting the Operational and Research Potential of Archived Transportation Management Data.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0041179

► This dissertation focuses on the challenges involved in the development of a central data warehouse that archives data from transportation management centers in Florida and… (more)

▼ This dissertation focuses on the challenges involved in the development of a central data warehouse that archives data from transportation management centers in Florida and on the use of the archived data for operational and research purposes. The first challenge was the development of a system to meet requirements set forth by its stakeholders. The components of the system are described in this document. The next challenge was to ensure that the system performs useful functions. This challenge was addressed by applying the principles of traffic flow theory to the analysis of archived data to reconstruct the operation of a facility in terms of performance measures, several of which are described and demonstrated using actual archived data. It was demonstrated that the archive data characteristics are consistent with the principles of traffic flow theory. Relationships between the macroscopic descriptors of traffic flow produced good agreement with those found in the literature, and with the empirical data presented in the Highway Capacity Manual. Specific examples are provided for traffic count extraction, travel time reliability reporting, incident analysis and the analysis of managed lanes. Additional quality control tests based on station and system level analysis were developed to supplement the set of individual lane detector tests found in the literature. The project described in this dissertation has created the Statewide Traffic Engineering Warehouse for Archived Regional Data (STEWARD), which provides an important resource for a wide variety of traffic data users in Florida, including both practitioners and researchers. The web site described in this dissertation provides the capability to download several reports summarized over a range of temporal and spatial requirements. The data can serve a variety of operational, administrative and research purposes. ( en ) Advisors/Committee Members: Yin, Yafeng (committee chair), Elefteriadou, Ageliki L. (committee member), Washburn, Scott S. (committee member), Steiner, Ruth L. (committee member).

Subjects/Keywords: Archives; Average speed; Databases; Flow velocity; Mile markers; Speed; Traffic data; Travel time; Vehicles; Zero; florida, steward; City of Jacksonville ( local )

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lee, S. (2009). Exploiting the Operational and Research Potential of Archived Transportation Management Data. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041179

Chicago Manual of Style (16^th Edition):

Lee, Seok. “Exploiting the Operational and Research Potential of Archived Transportation Management Data.” 2009. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0041179.

MLA Handbook (7^th Edition):

Lee, Seok. “Exploiting the Operational and Research Potential of Archived Transportation Management Data.” 2009. Web. 05 Mar 2021.

Vancouver:

Lee S. Exploiting the Operational and Research Potential of Archived Transportation Management Data. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0041179.

Council of Science Editors:

Lee S. Exploiting the Operational and Research Potential of Archived Transportation Management Data. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0041179

University of Florida

13. Song, Ziqi. Pareto-Improving Pricing for Transportation Networks.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0043721

► Since its inception over 90 years ago, congestion pricing has been recognized by many as an efficient method for alleviating traffic congestion. Despite the successes… (more)

Subjects/Keywords: Flow distribution; Marginal cost pricing; Mathematical vectors; Pricing; Rationing; Tolls; Traffic congestion; Transportation; Travel costs; Travel time; congestion – pricing – transportation

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APA (6^th Edition):

Song, Z. (2011). Pareto-Improving Pricing for Transportation Networks. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043721

Chicago Manual of Style (16^th Edition):

Song, Ziqi. “Pareto-Improving Pricing for Transportation Networks.” 2011. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0043721.

MLA Handbook (7^th Edition):

Song, Ziqi. “Pareto-Improving Pricing for Transportation Networks.” 2011. Web. 05 Mar 2021.

Vancouver:

Song Z. Pareto-Improving Pricing for Transportation Networks. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0043721.

Council of Science Editors:

Song Z. Pareto-Improving Pricing for Transportation Networks. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043721

University of Florida

14. ZHU,XIAOYU. An Analysis of Injury Severities of Large-Truck Crashes.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0042714

► Traffic crashes have become one of the largest public health problems in the world and will be one of the most concerned transportation issues in… (more)

Subjects/Keywords: Air bags; Alcohols; Fatigue; Head; Modeling; Passengers; Physical trauma; Roads; Truck drivers; Trucks; CRASH – INJURY – SEVERITY

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APA (6^th Edition):

ZHU,XIAOYU. (2011). An Analysis of Injury Severities of Large-Truck Crashes. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042714

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

ZHU,XIAOYU. “An Analysis of Injury Severities of Large-Truck Crashes.” 2011. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0042714.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

ZHU,XIAOYU. “An Analysis of Injury Severities of Large-Truck Crashes.” 2011. Web. 05 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

ZHU,XIAOYU. An Analysis of Injury Severities of Large-Truck Crashes. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0042714.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

ZHU,XIAOYU. An Analysis of Injury Severities of Large-Truck Crashes. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0042714

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

University of Florida

15. Lou, Yingyan. A Hierarchical Framework for Congestion Pricing of Transportation Networks.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0024767

► To further advance road pricing to be a more efficient and pragmatic tool for congestion mitigation, this dissertation proposes a hierarchical congestion pricing framework for… (more)

▼ To further advance road pricing to be a more efficient and pragmatic tool for congestion mitigation, this dissertation proposes a hierarchical congestion pricing framework for urban transportation networks. Within the framework, toll determination is decomposed into two levels: network and facilities. Empirical studies have discovered that travelers have a strong preference for simple system-wide pricing structures. For example, dynamic network pricing models are not only difficult to implement, more importantly, their pricing signals are also too complicated for travelers to understand and consequently change their travel behaviors. On the other hand, time-varying tolls at particular facilities, such as managed lanes, are acceptable and effective. Therefore, tolls at these two levels should follow different strategies due to their distinctive purposes and travelers' different response abilities. At the network level, we propose a robust static or time-of-day pricing policy to avoid complex toll structures while ensuring the network to perform reasonably well against a variety of uncertainties. Sources of uncertainty in transportation networks consist of not only randomness in demand and supply, but also travelers' stochastic and irrational behaviors. This dissertation investigates one of the uncertainties resulting from boundedly rational route-choice behaviors. Users with bounded rationality seek for acceptable paths rather than a necessarily minimum one. Boundedly rational user equilibrium (BRUE) flow distribution is generally non-unique and can be characterized as a non-convex and non-empty path flow set. A more restrictive link-based representation is also presented. A robust pricing scheme is determined by solving a nonlinear mathematical program with complementarity constraints to minimize the system travel time of the worst-case tolled BRUE flow distribution. At some critical facilities, the toll scheme determined at the network level may be further adjusted in response to real-time traffic conditions. This dissertation focuses on developing pricing strategies for managed toll lanes. Adaptive tolls may be adopted in order to provide a superior free-flow travel service to the users of the toll lanes while maximizing the freeway's throughput. Two sensible and practically implementable approaches, one feedback and one self-learning, are proposed. The self-learning approach monitors conditions of the facility through both direct observation and real-time estimation, and learns recursively motorists' willingness to pay and short-term future demand by mining the traffic data from sensors. In determination of the tolls, a detailed modeling of drivers' lane-choice behavior and traffic dynamics is adopted to explicitly consider their impacts on the performance of the facility. In summary, based on practical considerations of pricing, robust time-of-day tolls are proposed for the entire network while adaptive tolls are advocated for special facilities. This composes a hierarchical congestion pricing framework for a… Advisors/Committee Members: Yin, Yafeng (committee chair), Elefteriadou, Ageliki L. (committee member), Washburn, Scott S. (committee member), Srinivasan, Sivaramakrishnan (committee member), Lawphongpanich, Siriphong (committee member).

Subjects/Keywords: Flow distribution; High occupancy toll lanes; Motor vehicle traffic; Pricing; Simulations; Tolls; Traffic congestion; Transportation; Travel time; Travelers; adaptive, bounded, congestion, network, pricing, rationality, transportation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lou, Y. (2009). A Hierarchical Framework for Congestion Pricing of Transportation Networks. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024767

Chicago Manual of Style (16^th Edition):

Lou, Yingyan. “A Hierarchical Framework for Congestion Pricing of Transportation Networks.” 2009. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0024767.

MLA Handbook (7^th Edition):

Lou, Yingyan. “A Hierarchical Framework for Congestion Pricing of Transportation Networks.” 2009. Web. 05 Mar 2021.

Vancouver:

Lou Y. A Hierarchical Framework for Congestion Pricing of Transportation Networks. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0024767.

Council of Science Editors:

Lou Y. A Hierarchical Framework for Congestion Pricing of Transportation Networks. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0024767

University of Florida

16. Zhang, Lihui. Signal Timing Optimization for Reliable and Sustainable Mobility.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0042077

► This dissertation develops a stochastic programming approach to proactively consider a variety of uncertainties associated with signal timing optimization for fixed-time or actuated traffic signals.… (more)

▼ This dissertation develops a stochastic programming approach to proactively consider a variety of uncertainties associated with signal timing optimization for fixed-time or actuated traffic signals. Representing the uncertain parameter of interest as a number of scenarios and the corresponding probabilities of occurrence, the stochastic programming approach optimizes signal timings with respect to a set of high-consequence or worst-case scenarios. The resulting signal timing plans produce smaller delays and less vehicular emissions under those scenarios, thereby leading to more reliable and sustainable mobility. To illustrate the stochastic programming approach, below are three applications in traffic signal timing. The first application is to optimize the settings of fixed-time signals along arterials under day-to-day demand variations or uncertain future traffic growth. Based on a cell-transmission representation of traffic dynamics, an integrated stochastic programming model is formulated to determine cycle length, green splits, phase sequences and offsets that minimize the expected delay incurred by high-consequence scenarios of traffic demand. The stochastic programming model is simple in structure but contains a large number of binary variables. Existing algorithms, such as branch and bound, are not able to solve it efficiently. Consequently, a simulation-based genetic algorithm is developed to solve the model. The model and algorithm are validated and verified using two networks, under congested and uncongested traffic conditions. The second application further considers traffic emissions, and develops a bi-objective optimization model to make an explicit tradeoff between traffic delays and roadside human emission exposure. Based on the cell-transmission representation of traffic dynamics, a modal sensitive emission approach is used to estimate the tailpipe emission rate for each cell of a signalized arterial. A cell-based Gaussian plume air dispersion model is then employed to capture the dispersion of air pollutants and compute the roadside pollutant concentrations. Given a stochastic distribution of the wind speed and direction of a corridor, a scenario-based stochastic program is formulated to optimize the cycle length, phase splits, offsets and phase sequences of signals along a corridor simultaneously. A genetic algorithm is further developed to solve the bi-objective optimization problem for a set of Pareto optimal solutions. The solutions form an efficient frontier that presents explicit tradeoffs between total delay of the corridor and the human emission exposure of the roadside area incurred by high-consequence scenarios. The last application is to synchronize actuated signals along arterials for smooth and stable progression under uncertain traffic conditions, mainly addressing the issue of uncertain (not fixed) starts/ends of green of sync phases. The model developed is based on Little?s mixed-integer linear programming (MIP) formulation, which determines, e.g., offsets and progression speed… Advisors/Committee Members: Yin, Yafeng (committee chair), Elefteriadou, Ageliki L. (committee member), Washburn, Scott S. (committee member), Srinivasan, Sivaramakrishnan (committee member), Lawphongpanich, Siriphong (committee member).

Subjects/Keywords: Modeling; Motor vehicle traffic; Pollutant emissions; Propagation delay; Signals; Simulations; Traffic delay; Traffic flow; Traffic models; Transportation; actuated, bandwidth, cell, coordination, delay, demand, emission, genetic, optimization, pareto, robust, signal, simulation, stochastic, sustainable, timing, uncertainties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, L. (2010). Signal Timing Optimization for Reliable and Sustainable Mobility. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042077

Chicago Manual of Style (16^th Edition):

Zhang, Lihui. “Signal Timing Optimization for Reliable and Sustainable Mobility.” 2010. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0042077.

MLA Handbook (7^th Edition):

Zhang, Lihui. “Signal Timing Optimization for Reliable and Sustainable Mobility.” 2010. Web. 05 Mar 2021.

Vancouver:

Zhang L. Signal Timing Optimization for Reliable and Sustainable Mobility. [Internet] [Doctoral dissertation]. University of Florida; 2010. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0042077.

Council of Science Editors:

Zhang L. Signal Timing Optimization for Reliable and Sustainable Mobility. [Doctoral Dissertation]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0042077

University of Florida

17. Manokhoon, Kitti. Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2007, University of Florida

URL: https://ufdc.ufl.edu/UFE0021687

► Five instrumented full-size concrete slabs were constructed and tested under accelerated pavement testing by means of a Heavy Vehicle Simulator (HVS) to study the behavior… (more)

Subjects/Keywords: Calibration; Compressive strength; Concrete slabs; Flexural strength; Moduli of elasticity; Pavements; Sensors; Specimens; Stress ratio; Structural deflection; apt, concrete, feacons, flexural, hvs, maturity, pavement, slab, strain, strength; City of Gainesville ( local )

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Manokhoon, K. (2007). Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021687

Chicago Manual of Style (16^th Edition):

Manokhoon, Kitti. “Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing.” 2007. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0021687.

MLA Handbook (7^th Edition):

Manokhoon, Kitti. “Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing.” 2007. Web. 05 Mar 2021.

Vancouver:

Manokhoon K. Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing. [Internet] [Doctoral dissertation]. University of Florida; 2007. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0021687.

Council of Science Editors:

Manokhoon K. Evaluation of Concrete Mixes for Slab Replacement Using the Maturity Method and Accelerated Pavement Testing. [Doctoral Dissertation]. University of Florida; 2007. Available from: https://ufdc.ufl.edu/UFE0021687

University of Florida

18. Forcael, Eric. Buffering Strategies for Managing Transportation Construction Projects.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0042456

► Uncertainty is an inherent part of production systems. In construction processes, production variability emerges as one of the most typical representation of uncertainty. Negative variability… (more)

Subjects/Keywords: Analysis of variance; Arithmetic mean; Average total cost; Buffer storage; Linear scheduling; Mathematical dependent variables; Modeling; Simulations; Statistical models; Transportation; buffering, construction, linear, management, scheduling, simulation, transportation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Forcael, E. (2010). Buffering Strategies for Managing Transportation Construction Projects. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042456

Chicago Manual of Style (16^th Edition):

Forcael, Eric. “Buffering Strategies for Managing Transportation Construction Projects.” 2010. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0042456.

MLA Handbook (7^th Edition):

Forcael, Eric. “Buffering Strategies for Managing Transportation Construction Projects.” 2010. Web. 05 Mar 2021.

Vancouver:

Forcael E. Buffering Strategies for Managing Transportation Construction Projects. [Internet] [Doctoral dissertation]. University of Florida; 2010. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0042456.

Council of Science Editors:

Forcael E. Buffering Strategies for Managing Transportation Construction Projects. [Doctoral Dissertation]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0042456

University of Florida

19. Wu,Di. Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks.

Degree: PhD, Civil Engineering - Civil and Coastal Engineering, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0043253

► Congestion pricing is to impose tolls on transportation facilities to influence people's travel choices in order to alleviate traffic congestion. Although recent successful implementations around… (more)

Subjects/Keywords: Pricing; Public policy; Tolls; Tours; Traffic congestion; Transportation; Travel costs; Travel demand; Travel time; Travelers; acceptable – congestion – credit – equity – multimodal – pareto – pricing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wu,Di. (2011). Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043253

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Wu,Di. “Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks.” 2011. Doctoral Dissertation, University of Florida. Accessed March 05, 2021. https://ufdc.ufl.edu/UFE0043253.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Wu,Di. “Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks.” 2011. Web. 05 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Wu,Di. Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Mar 05]. Available from: https://ufdc.ufl.edu/UFE0043253.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Wu,Di. Designing More Acceptable and Equitable Congestion Pricing Schemes for Multimodal Transportation Networks. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043253

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

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