subject:(surrogate safety measures)

Georgia Tech

1. Maddox, Spencer. Using automated video processing to identify pedestrian-vehicle conflicts.

Degree: MS, Civil and Environmental Engineering, 2020, Georgia Tech

► Pedestrian-vehicle crashes are rare occurrences. Using solely crash data to improve safety on corridors and intersections, therefore, has its limitations. The Georgia Tech Research Institute… (more)

Subjects/Keywords: Transportation; Safety; Automated video processing; Pedestrians; Conflicts; Surrogate safety measures

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APA (6^th Edition):

Maddox, S. (2020). Using automated video processing to identify pedestrian-vehicle conflicts. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/62859

Chicago Manual of Style (16^th Edition):

Maddox, Spencer. “Using automated video processing to identify pedestrian-vehicle conflicts.” 2020. Masters Thesis, Georgia Tech. Accessed January 19, 2021. http://hdl.handle.net/1853/62859.

MLA Handbook (7^th Edition):

Maddox, Spencer. “Using automated video processing to identify pedestrian-vehicle conflicts.” 2020. Web. 19 Jan 2021.

Vancouver:

Maddox S. Using automated video processing to identify pedestrian-vehicle conflicts. [Internet] [Masters thesis]. Georgia Tech; 2020. [cited 2021 Jan 19]. Available from: http://hdl.handle.net/1853/62859.

Council of Science Editors:

Maddox S. Using automated video processing to identify pedestrian-vehicle conflicts. [Masters Thesis]. Georgia Tech; 2020. Available from: http://hdl.handle.net/1853/62859

Delft University of Technology

2. Borsos, Attila (author). Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:9c23dd43-66e5-424d-9763-12a00fa8f28b

► The most common way to evaluate traffic safety is investigating the occurrence and severity of crashes using historical data. This approach however has a number… (more)

Subjects/Keywords: traffic safety; extreme value theory; surrogate measures of safety

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APA (6^th Edition):

Borsos, A. (. (2019). Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:9c23dd43-66e5-424d-9763-12a00fa8f28b

Chicago Manual of Style (16^th Edition):

Borsos, Attila (author). “Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis.” 2019. Masters Thesis, Delft University of Technology. Accessed January 19, 2021. http://resolver.tudelft.nl/uuid:9c23dd43-66e5-424d-9763-12a00fa8f28b.

MLA Handbook (7^th Edition):

Borsos, Attila (author). “Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis.” 2019. Web. 19 Jan 2021.

Vancouver:

Borsos A(. Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 19]. Available from: http://resolver.tudelft.nl/uuid:9c23dd43-66e5-424d-9763-12a00fa8f28b.

Council of Science Editors:

Borsos A(. Applying Extreme Value Models to Surrogate Measures for Traffic Safety Analysis. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:9c23dd43-66e5-424d-9763-12a00fa8f28b

Delft University of Technology

3. Oude Vrielink, I.M. (author). Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:6467b499-9093-49ac-9e73-253e9d5172d5

►

Weaving sections are frequently applied on Dutch freeways. Guidelines are present for designing those freeway weaving sections. However, the origin of these guidelines is unclear… (more)

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Weaving sections are frequently applied on Dutch freeways. Guidelines are present for designing those freeway weaving sections. However, the origin of these guidelines is unclear and it is not always possible to apply the guidelines. Dutch road designers and road safety experts are searching for methods to evaluate the safety of a (proposed) design more quantitatively than is currently done by expert judgement. An alternative option would be to determine safety of Dutch weaving sections using VISSIM micro-simulation models in combination with the Surrogate Safety Assessment Model (SSAM). SSAM is able to calculate the number of conflicts that occurred in a micro-simulation model using the surrogate safety measures time-to-collision (TTC) and post-encroachment-time (PET). A conflict is an observable situation in which two or more road users approach each-other such that there is a risk of collision if their movement remains unchanged. The goal of this master thesis research is to assess whether this number of conflicts observed from VISSIM microsimulation models using SSAM is representing safety (crash rate) of Dutch weaving sections. For that nine Dutch weaving sections were selected, and were ranked based on four criteria: (I) the crash rate from the BRON crash database, (II) the conflict rate (conflicts per number of vehicle kilometres) calculated from VISSIM micro-simulations using SSAM, (III) the expected number of crashes calculated using the crash prediction model developed by Iliadi et al. [29], and (IV) the judgement of road safety experts. The Spearman Rank Correlation Coefficient was calculated between these rankings, to validate the ranking based on the conflict rate. For initial VISSIM and SSAM settings, a correlation of 0.567 was found between the crash rate and conflict rate ranking, indicating a reasonable fit. However, due to the small sample size this correlation is not significant (𝑃-value is 0.112). The effects of some micro-simulation settings, conflict analysis thresholds and the calibration method are assessed in a sensitivity analysis. Reducing the TTC threshold from 1.5 seconds to 0.5 seconds resulted improved the correlation between the conflict rate and the crash rate. However, changing other settings resulted in a weaker correlation. Although different than expected, extending the calibration process by adding calibration on speeds resulted in a weaker correlation. Hence care should be taken when using conflicts calculated by VISSIM and SSAM as (only) predictor for safety of Dutch weaving sections. It is recommended to expand the selection of weaving sections to assess whether a larger sample results in a stronger, significant, correlation. Also, it can be assessed how a more extensive calibration of VISSIM parameters affects the correlation between the conflict rate and other measures. Furthermore, crash numbers might have more impact on policy makers and public perceptions than alternatives such as conflicts and surrogate safety measures.

Civil Engineering and Geosciences

Transport &…

Advisors/Committee Members: Hoogendoorn, S.P. (mentor), Farah, H. (mentor), Broeren, P.T.W. (mentor), van Gelder, P.H.A.J.M. (mentor).

Subjects/Keywords: traffic safety; weaving sections; surrogate safety measures; SSAM; conflicts

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APA (6^th Edition):

Oude Vrielink, I. M. (. (2017). Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:6467b499-9093-49ac-9e73-253e9d5172d5

Chicago Manual of Style (16^th Edition):

Oude Vrielink, I M (author). “Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM.” 2017. Masters Thesis, Delft University of Technology. Accessed January 19, 2021. http://resolver.tudelft.nl/uuid:6467b499-9093-49ac-9e73-253e9d5172d5.

MLA Handbook (7^th Edition):

Oude Vrielink, I M (author). “Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM.” 2017. Web. 19 Jan 2021.

Vancouver:

Oude Vrielink IM(. Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 19]. Available from: http://resolver.tudelft.nl/uuid:6467b499-9093-49ac-9e73-253e9d5172d5.

Council of Science Editors:

Oude Vrielink IM(. Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:6467b499-9093-49ac-9e73-253e9d5172d5

Delft University of Technology

4. Hoogvliet, Jeroen (author). Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:8267fa09-3053-4569-9d0d-891939e5b5df

► By means of a driving simulator experiment and an accident data analysis, this research focuses on two points: (1) an expected difference in turbulence between… (more)

Subjects/Keywords: major forks; driving simulator; surrogate safety measures; traffic safety

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APA (6^th Edition):

Hoogvliet, J. (. (2018). Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8267fa09-3053-4569-9d0d-891939e5b5df

Chicago Manual of Style (16^th Edition):

Hoogvliet, Jeroen (author). “Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures.” 2018. Masters Thesis, Delft University of Technology. Accessed January 19, 2021. http://resolver.tudelft.nl/uuid:8267fa09-3053-4569-9d0d-891939e5b5df.

MLA Handbook (7^th Edition):

Hoogvliet, Jeroen (author). “Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures.” 2018. Web. 19 Jan 2021.

Vancouver:

Hoogvliet J(. Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Jan 19]. Available from: http://resolver.tudelft.nl/uuid:8267fa09-3053-4569-9d0d-891939e5b5df.

Council of Science Editors:

Hoogvliet J(. Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:8267fa09-3053-4569-9d0d-891939e5b5df

Delft University of Technology

5. de Ruyter, M. (author). The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:d8e2a920-c959-4eb6-8e64-82e5be469661

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In Dutch design guidelines it is presumed that merging tapers are unsafe compared to the standard merger design. However, this presumption is not scientifically underpinned… (more)

Subjects/Keywords: road safety; driving simulator experiment; merging taper; surrogate safety measures; geometric road design; driving behaviour

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APA (6^th Edition):

de Ruyter, M. (. (2016). The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d8e2a920-c959-4eb6-8e64-82e5be469661

Chicago Manual of Style (16^th Edition):

de Ruyter, M (author). “The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers.” 2016. Masters Thesis, Delft University of Technology. Accessed January 19, 2021. http://resolver.tudelft.nl/uuid:d8e2a920-c959-4eb6-8e64-82e5be469661.

MLA Handbook (7^th Edition):

de Ruyter, M (author). “The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers.” 2016. Web. 19 Jan 2021.

Vancouver:

de Ruyter M(. The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Jan 19]. Available from: http://resolver.tudelft.nl/uuid:d8e2a920-c959-4eb6-8e64-82e5be469661.

Council of Science Editors:

de Ruyter M(. The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:d8e2a920-c959-4eb6-8e64-82e5be469661

Delft University of Technology

6. Srinivasan Ravi Kumar, Girish Kumaar (author). Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:2341fb80-bc4d-4064-a32d-18f4440ae74b

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This research investigates the speed behaviour and safety effects on cyclists and mopeds sharing the cyclist T-Intersection with and without the application of a lane… (more)

Subjects/Keywords: Lane Marking Nudge; behaviour; cyclist; mopeds; deceleration ranges; jerk; surrogate safety measures

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APA (6^th Edition):

Srinivasan Ravi Kumar, G. K. (. (2020). Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:2341fb80-bc4d-4064-a32d-18f4440ae74b

Chicago Manual of Style (16^th Edition):

Srinivasan Ravi Kumar, Girish Kumaar (author). “Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands.” 2020. Masters Thesis, Delft University of Technology. Accessed January 19, 2021. http://resolver.tudelft.nl/uuid:2341fb80-bc4d-4064-a32d-18f4440ae74b.

MLA Handbook (7^th Edition):

Srinivasan Ravi Kumar, Girish Kumaar (author). “Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands.” 2020. Web. 19 Jan 2021.

Vancouver:

Srinivasan Ravi Kumar GK(. Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Jan 19]. Available from: http://resolver.tudelft.nl/uuid:2341fb80-bc4d-4064-a32d-18f4440ae74b.

Council of Science Editors:

Srinivasan Ravi Kumar GK(. Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:2341fb80-bc4d-4064-a32d-18f4440ae74b

University of Waterloo

7. Cunto, Flávio. Assessing Safety Performance of Transportation Systems using Microscopic Simulation.

Degree: 2008, University of Waterloo

URL: http://hdl.handle.net/10012/4111

► Transportation safety has been recognized as a public health issue worldwide, consequently, transportation researchers and practitioners have been attempting to provide adequate safety performance for… (more)

▼ Transportation safety has been recognized as a public health issue worldwide, consequently, transportation researchers and practitioners have been attempting to provide adequate safety performance for the various transportation components and facilities to all road users given the usually scarce resources available. Safety engineers have been trying to make decisions affecting safety based on the knowledge extracted from different types of statistical models and/or observational before-after analysis. It is generally recognized that this type of factual knowledge is not easily obtained either statistically or empirically. Despite the intuitive link between road safety and observed crashes, a good understanding of the sequence of events prior to the crash can provide a more rational basis for the development of engineering countermeasures. The development of more comprehensive mechanistic models for safety assessment is heavily dependent on detailed vehicle tracking data that is not readily available. The potential of microscopic simulation in traffic safety and traffic conflict analysis has gained increasing interest mostly due to recent developments in human behaviour modelling and real-time vehicle data acquisition. In this thesis, we present a systematic investigation of the use of existing behavioural microscopic simulation models in short-term road safety studies. Initially, a microscopic framework is introduced to identify potentially unsafe vehicle interactions for different vehicle movements based on three types of traffic behaviour protocols: car-following, lane change and gap acceptance. This microscopic model for safety assessment applies a safety performance measure based on pairwise comparisons of spacing and speed differential between adjacent vehicles and individual braking power in real-time. A calibration/validation procedure using factorial analysis is presented to select best model input parameters for this safety performance measure by using high resolution vehicle tracking data. The ability of the proposed safety performance measure to reflect real-life observed high-risk vehicular interactions is explored in three intuitive tests using observed crash data. Finally, the usefulness of the model is illustrated through its application to investigate the safety implications of two different geometric and operational traffic strategies. The overall results indicate that, notwithstanding the fact that actual behavioural microscopic algorithms have not been developed strictly to model crashes, they are able to replicate several factors directly related to high risk situations that could lead to crashes with reasonable accuracy. With the existing upward trend in computing power, modelling techniques and increasing availability of detailed vehicle tracking data, it is likely that safety studies will be carried out using a more mechanistic and inclusive approach based on disruptive driving behaviour rather than ultimate unpredictable and heavily restrictive crash…

Subjects/Keywords: microscopic simulation; safety performance measures; road safety; surrogate safety measures

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APA (6^th Edition):

Cunto, F. (2008). Assessing Safety Performance of Transportation Systems using Microscopic Simulation. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/4111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cunto, Flávio. “Assessing Safety Performance of Transportation Systems using Microscopic Simulation.” 2008. Thesis, University of Waterloo. Accessed January 19, 2021. http://hdl.handle.net/10012/4111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cunto, Flávio. “Assessing Safety Performance of Transportation Systems using Microscopic Simulation.” 2008. Web. 19 Jan 2021.

Vancouver:

Cunto F. Assessing Safety Performance of Transportation Systems using Microscopic Simulation. [Internet] [Thesis]. University of Waterloo; 2008. [cited 2021 Jan 19]. Available from: http://hdl.handle.net/10012/4111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cunto F. Assessing Safety Performance of Transportation Systems using Microscopic Simulation. [Thesis]. University of Waterloo; 2008. Available from: http://hdl.handle.net/10012/4111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Lund

8. Johnsson, Carl. Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity.

Degree: 2020, University of Lund

URL: https://lup.lub.lu.se/record/10b7554b-3ffd-495a-b9be-95334374da40 ; https://portal.research.lu.se/ws/files/84407537/Carl_Johnsson_web.pdf

► Surrogate measures of safety (SMoS) are meant to function as tools to investigate traffic safety. The term surrogate indicates that these measures do not rely… (more)

▼ Surrogate measures of safety (SMoS) are meant to function as tools to investigate traffic safety. The term surrogate indicates that these measures do not rely on crash data; instead, they focus on identifying safety critical events (or near-crashes) in traffic, which can be used as an alternative to crash records. The overall aim of this thesis is to explore which SMoS are suitable when analysing the safety of vulnerable road users (pedestrians and cyclists). The thesis attempts to answer this question using two different approaches: 1) a literature review focusing on existing surrogate measures and how well they consider vulnerable road users from a theoretical perspective, and 2) four observational studies which focus on the validity of SMoS and their relation to exposure.The literature review focuses on identifying existing SMoS, and on two main aspects when evaluating their suitability for analysing the safety of vulnerable road users. Firstly, if the indicators theoretically are able to measure both the risk of collision and the potential for injury should a collision occur, and secondly, to what extent vulnerable road users were included in previous validation studies. The findings from the literature review are that the most commonly used indicators (Time to Collision Minimum and Post Encroachment Time) are also the most validated, but that they have several theoretical limitations, mainly that they to do not measure injury potential and that they measure the severity of an event based on the outcome rather than the initial conditions or potential/observed evasive actions. There are also several indicators which theoretically are more suitable but instead lack validation studies.The observational studies, which make up the second part of this thesis, consist of an attempt at a large-scale validation study, followed by several studies which focus on the shortcomings discovered in the first attempt. The large-scale study is based on three weeks of video recordings made at 26 signalized intersections in seven European countries. The analysis of these videos resulted in three major findings. Firstly, the lack of comparable crash records made any large-scale validation attempts impossible. Secondly, the lack of comparability between the critical events identified by human observers and those identified by computer calculations made it infeasible to perform a long-term analysis. Thirdly, there is a significant relationship between meetings and critical events identified using Time to Collision Minimum and Post Encroachment Time, which suggests that some of the benefit of using those (and other indicators) might originate from their inherent connection to simple meetings between road users (i.e. exposure). Following these results, the thesis presents a limited validation study based solely on the Scandinavian intersections followed by a suggestion for how a relative approach to validity might offer a potentially easier way of evaluating SMoS in the future. The results from these studies indicate that Time to…

Subjects/Keywords: Transport Systems and Logistics; Infrastructure Engineering; Trafiksäkerhet; Indirekta trafiksäkerhetsindikatorer; Oskyddade trafikanter; Videoanalys; Surrogate measures of safety; Traffic safety; Vulnerable road user safety; Traffic conflicts; video analysis

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

APA (6^th Edition):

Johnsson, C. (2020). Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity. (Doctoral Dissertation). University of Lund. Retrieved from https://lup.lub.lu.se/record/10b7554b-3ffd-495a-b9be-95334374da40 ; https://portal.research.lu.se/ws/files/84407537/Carl_Johnsson_web.pdf

Chicago Manual of Style (16^th Edition):

Johnsson, Carl. “Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity.” 2020. Doctoral Dissertation, University of Lund. Accessed January 19, 2021. https://lup.lub.lu.se/record/10b7554b-3ffd-495a-b9be-95334374da40 ; https://portal.research.lu.se/ws/files/84407537/Carl_Johnsson_web.pdf.

MLA Handbook (7^th Edition):

Johnsson, Carl. “Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity.” 2020. Web. 19 Jan 2021.

Vancouver:

Johnsson C. Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity. [Internet] [Doctoral dissertation]. University of Lund; 2020. [cited 2021 Jan 19]. Available from: https://lup.lub.lu.se/record/10b7554b-3ffd-495a-b9be-95334374da40 ; https://portal.research.lu.se/ws/files/84407537/Carl_Johnsson_web.pdf.

Council of Science Editors:

Johnsson C. Surrogate Measures of Safety with a Focus on Vulnerable Road Users : An exploration of theory, practice, exposure, and validity. [Doctoral Dissertation]. University of Lund; 2020. Available from: https://lup.lub.lu.se/record/10b7554b-3ffd-495a-b9be-95334374da40 ; https://portal.research.lu.se/ws/files/84407537/Carl_Johnsson_web.pdf

University of Lund

9. de Ceunynck, Tim. Defining and applying surrogate safety measures and behavioural indicators through site-based observations.

Degree: 2017, University of Lund

URL: https://lup.lub.lu.se/record/7f7f7952-2b51-40ca-bb33-a551427ed6e8 ; https://portal.research.lu.se/ws/files/30184385/170823Dissertation_TimDeCeunynck_final_inclcover.pdf

► This dissertation looks into surrogate safety measures and behavioural indicators that are collected through site-based observations. Surrogate safety measures are defined as measurements that are… (more)

Subjects/Keywords: Transport Systems and Logistics; Surrogate safety measures; behavioural indicators; traffic safety; site-based observations; traffic conflicts; traffic conflict techniques; road user interactions

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APA (6^th Edition):

de Ceunynck, T. (2017). Defining and applying surrogate safety measures and behavioural indicators through site-based observations. (Doctoral Dissertation). University of Lund. Retrieved from https://lup.lub.lu.se/record/7f7f7952-2b51-40ca-bb33-a551427ed6e8 ; https://portal.research.lu.se/ws/files/30184385/170823Dissertation_TimDeCeunynck_final_inclcover.pdf

Chicago Manual of Style (16^th Edition):

de Ceunynck, Tim. “Defining and applying surrogate safety measures and behavioural indicators through site-based observations.” 2017. Doctoral Dissertation, University of Lund. Accessed January 19, 2021. https://lup.lub.lu.se/record/7f7f7952-2b51-40ca-bb33-a551427ed6e8 ; https://portal.research.lu.se/ws/files/30184385/170823Dissertation_TimDeCeunynck_final_inclcover.pdf.

MLA Handbook (7^th Edition):

de Ceunynck, Tim. “Defining and applying surrogate safety measures and behavioural indicators through site-based observations.” 2017. Web. 19 Jan 2021.

Vancouver:

de Ceunynck T. Defining and applying surrogate safety measures and behavioural indicators through site-based observations. [Internet] [Doctoral dissertation]. University of Lund; 2017. [cited 2021 Jan 19]. Available from: https://lup.lub.lu.se/record/7f7f7952-2b51-40ca-bb33-a551427ed6e8 ; https://portal.research.lu.se/ws/files/30184385/170823Dissertation_TimDeCeunynck_final_inclcover.pdf.

Council of Science Editors:

de Ceunynck T. Defining and applying surrogate safety measures and behavioural indicators through site-based observations. [Doctoral Dissertation]. University of Lund; 2017. Available from: https://lup.lub.lu.se/record/7f7f7952-2b51-40ca-bb33-a551427ed6e8 ; https://portal.research.lu.se/ws/files/30184385/170823Dissertation_TimDeCeunynck_final_inclcover.pdf

10. Markt, Jonathan Kenneth. Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study.

Degree: MSin Engineering, Civil Engineering, 2011, University of Texas – Austin

URL: http://hdl.handle.net/2152/ETD-UT-2011-12-4717

► Overuse of the Interstate and National Highway Systems has led many urban freeways to suffer from recurrent congestion and high crash rates. One method of… (more)

Subjects/Keywords: Speed harmonization; Variable speed limits; Micro-simulation; Surrogate safety measures

…80 5.4 Surrogate Safety Assessment Model (SSAM)… …was analyzed using the Surrogate Safety Analysis Method (SSAM) software. This case… …71 Table 16. Network Performance Measures for Base Case Simulation ..................74 ix… …Table 17. Comparison of Network Performance Measures between Base and Alternative Cases… …use of one ATM strategy, namely speed harmonization, to improve the safety and efficiency of…

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APA (6^th Edition):

Markt, J. K. (2011). Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/ETD-UT-2011-12-4717

Chicago Manual of Style (16^th Edition):

Markt, Jonathan Kenneth. “Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study.” 2011. Masters Thesis, University of Texas – Austin. Accessed January 19, 2021. http://hdl.handle.net/2152/ETD-UT-2011-12-4717.

MLA Handbook (7^th Edition):

Markt, Jonathan Kenneth. “Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study.” 2011. Web. 19 Jan 2021.

Vancouver:

Markt JK. Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study. [Internet] [Masters thesis]. University of Texas – Austin; 2011. [cited 2021 Jan 19]. Available from: http://hdl.handle.net/2152/ETD-UT-2011-12-4717.

Council of Science Editors:

Markt JK. Evaluation of the safety and mobility impacts of a proposed speed harmonization system : the Interstate 35 case study. [Masters Thesis]. University of Texas – Austin; 2011. Available from: http://hdl.handle.net/2152/ETD-UT-2011-12-4717

University of Kentucky

11. Sagar, Shraddha. PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS.

Degree: 2017, University of Kentucky

URL: https://uknowledge.uky.edu/ce_etds/60

► Left-turning maneuvers are considered to be the highest risk movements at intersections and two-thirds of the crashes associated with left-turns are reported at signalized intersections.… (more)

Subjects/Keywords: Left-Turn Phasing Decisions; Microsimulation; Surrogate Safety Measures; Conflict Points; Negative Binomial Regression & Principal Component Analysis; Civil and Environmental Engineering; Engineering; Transportation Engineering

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

APA (6^th Edition):

Sagar, S. (2017). PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/ce_etds/60

Chicago Manual of Style (16^th Edition):

Sagar, Shraddha. “PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS.” 2017. Masters Thesis, University of Kentucky. Accessed January 19, 2021. https://uknowledge.uky.edu/ce_etds/60.

MLA Handbook (7^th Edition):

Sagar, Shraddha. “PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS.” 2017. Web. 19 Jan 2021.

Vancouver:

Sagar S. PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS. [Internet] [Masters thesis]. University of Kentucky; 2017. [cited 2021 Jan 19]. Available from: https://uknowledge.uky.edu/ce_etds/60.

Council of Science Editors:

Sagar S. PREDICTION OF PROTECTED-PERMISSIVE LEFT-TURN PHASING CRASHES BASED ON CONFLICT ANALYSIS. [Masters Thesis]. University of Kentucky; 2017. Available from: https://uknowledge.uky.edu/ce_etds/60

University of Lund

12. Svensson, Åse. A method for analysing the traffic process in a safety perspective.

Degree: 1998, University of Lund

URL: https://lup.lub.lu.se/record/18638 ; https://portal.research.lu.se/ws/files/4456913/1653512.pdf

► The aim of this study is to extend the traffic safety assessment concept to also include normal road user behaviour, thus not only exceptional behaviours… (more)

▼ The aim of this study is to extend the traffic safety assessment concept to also include normal road user behaviour, thus not only exceptional behaviours such as accidents and serious conflicts. The goal is to provide a framework for a more thorough description and analysis of safety related road user behaviour in order to better understand the traffic safety processes. The traffic safety process can be seen as a continuum of events with different severity. The aim has been to construct a severity hierarchy for traffic events so that for each event a severity can be estimated. The severity hierarchy can be used for analyses of the traffic safety process, i.e. describing the relationship between accident related events. Relevant events in the traffic safety process are called interactions and are characterised by a collision course. The severity of the process is described by the Time-to-Accident and Speed values. The severity is based on the probability of a serious injury accident and refers to the severity of the event an infinitesimal unit of time before the evasive action. The outcome then depends on when the evasive action is taken and how successful it is. The shape of the hierarchy is affected by different factors, such as type of road user and type of manoeuvre involved, speed of the road users involved, traffic flow, intersectional design, etc. Road user behaviour is studied at two signalised intersections and at one non-signalised intersection with right hand rule. Interactional data, conflict data and accident data are collected for the three different sites with regard to the manoeuvre and the road user taking evasive action. The results suggest a border in the severity hierarchy above which a high occurrence rate of interactions is a sign of unsafety and beneath which a high occurrence rate of interactions is a sign of safety. It is, however, to be noted that a location with a high interaction frequency at low severity levels seems to produce the conditions for occasional events with high injury accident potential. The convexity of these interactions with less severity was in this study widely spread over several severity levels. The opposite pattern, a narrow convexity at reasonably high severities, seems to be the insurance for preventing the most severe types of events from occurring. This is probably due to the learning process, i.e. the increased awareness of the road users brought about by involvement in interactions with reasonably high severity. It is, therefore, from a safety perspective not only interesting to analyse the part of the hierarchy with the most severe events, but also to take the whole shape of the distribution into consideration.

Subjects/Keywords: Transport Systems and Logistics; intermediate method; Accidents; pedestrian safety; safety hierarchy; severity; traffic conflicts; interaction; road user behaviour; traffic safety; traffic process; time to accidents; safety indicators; surrogate measures

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

APA (6^th Edition):

Svensson, �. (1998). A method for analysing the traffic process in a safety perspective. (Doctoral Dissertation). University of Lund. Retrieved from https://lup.lub.lu.se/record/18638 ; https://portal.research.lu.se/ws/files/4456913/1653512.pdf

Chicago Manual of Style (16^th Edition):

Svensson, Åse. “A method for analysing the traffic process in a safety perspective.” 1998. Doctoral Dissertation, University of Lund. Accessed January 19, 2021. https://lup.lub.lu.se/record/18638 ; https://portal.research.lu.se/ws/files/4456913/1653512.pdf.

MLA Handbook (7^th Edition):

Svensson, Åse. “A method for analysing the traffic process in a safety perspective.” 1998. Web. 19 Jan 2021.

Vancouver:

Svensson �. A method for analysing the traffic process in a safety perspective. [Internet] [Doctoral dissertation]. University of Lund; 1998. [cited 2021 Jan 19]. Available from: https://lup.lub.lu.se/record/18638 ; https://portal.research.lu.se/ws/files/4456913/1653512.pdf.

Council of Science Editors:

Svensson �. A method for analysing the traffic process in a safety perspective. [Doctoral Dissertation]. University of Lund; 1998. Available from: https://lup.lub.lu.se/record/18638 ; https://portal.research.lu.se/ws/files/4456913/1653512.pdf

University of Queensland

13. Mahmud, S. M. Sohel. Modelling driving behaviour and safety risk in two-lane rural highways in developing countries.

Degree: School of Civil Engineering, 2019, University of Queensland

URL: http://espace.library.uq.edu.au/view/UQ:1

Subjects/Keywords: Safety risk; Driving behaviour; Rural highways; Developing countries; Heterogeneous traffic; Statistical modelling; Surrogate measures; Traffic conflict; Speed choice; Overtaking behaviour; 0905 Civil Engineering; 1117 Public Health and Health Services

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

APA (6^th Edition):

Mahmud, S. M. S. (2019). Modelling driving behaviour and safety risk in two-lane rural highways in developing countries. (Thesis). University of Queensland. Retrieved from http://espace.library.uq.edu.au/view/UQ:1

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mahmud, S M Sohel. “Modelling driving behaviour and safety risk in two-lane rural highways in developing countries.” 2019. Thesis, University of Queensland. Accessed January 19, 2021. http://espace.library.uq.edu.au/view/UQ:1.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mahmud, S M Sohel. “Modelling driving behaviour and safety risk in two-lane rural highways in developing countries.” 2019. Web. 19 Jan 2021.

Vancouver:

Mahmud SMS. Modelling driving behaviour and safety risk in two-lane rural highways in developing countries. [Internet] [Thesis]. University of Queensland; 2019. [cited 2021 Jan 19]. Available from: http://espace.library.uq.edu.au/view/UQ:1.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mahmud SMS. Modelling driving behaviour and safety risk in two-lane rural highways in developing countries. [Thesis]. University of Queensland; 2019. Available from: http://espace.library.uq.edu.au/view/UQ:1

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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