+publisher:"Delft University of Technology" +contributor:("Verheij, Henk")

Delft University of Technology

1. Shi, Jing (author). Optimum enlargement of the Eefde lock using a simulation model.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:a39cf2d0-cbff-4e2a-8473-b8f894984138

► With the development of the inland waterway transport, ship locks become more and more important as infrastructure in waterway network. Currently, there are a lot… (more)

Subjects/Keywords: Locks; Optimum; Simulation

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APA (6^th Edition):

Shi, J. (. (2017). Optimum enlargement of the Eefde lock using a simulation model. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a39cf2d0-cbff-4e2a-8473-b8f894984138

Chicago Manual of Style (16^th Edition):

Shi, Jing (author). “Optimum enlargement of the Eefde lock using a simulation model.” 2017. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:a39cf2d0-cbff-4e2a-8473-b8f894984138.

MLA Handbook (7^th Edition):

Shi, Jing (author). “Optimum enlargement of the Eefde lock using a simulation model.” 2017. Web. 20 Jan 2021.

Vancouver:

Shi J(. Optimum enlargement of the Eefde lock using a simulation model. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:a39cf2d0-cbff-4e2a-8473-b8f894984138.

Council of Science Editors:

Shi J(. Optimum enlargement of the Eefde lock using a simulation model. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:a39cf2d0-cbff-4e2a-8473-b8f894984138

Delft University of Technology

2. van Adrichem, Wouter (author). LOSCO A Ship Lock Scheduling Model.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ed6b3620-1e73-47b0-9600-4a71a73de670

► A ship lock scheduling model called LOSCO was developed in order to decrease passage times at locks with two parallel chambers. Three locks were chosen… (more)

▼ A ship lock scheduling model called LOSCO was developed in order to decrease passage times at locks with two parallel chambers. Three locks were chosen to model, as they are some of the busiest locks of the Netherlands. The Krammersluizen, the Sluizen Hansweert and the Kreekraksluizen. Passage times are not collected at the locks, therefore the model was compared to SIVAK. SIVAK is the standard model for research on locks at Rijkswaterstaat. To schedule vessels in locks three types of choices can be made. Every vessel needs to be assigned to a chamber, the initiation time of locking should be decided and the order of sailing in a chamber should bedefined. By optimising these choices, passage times can be decreased. Optimising is however not straightforward, as the problem is an instance of the job shop scheduling problem. No exact algorithm has been found to solve these problems in a practical amount of time. Therefore the challange is to find a balance in solution quality and the speed of the model when creating a lock scheduling model. In this thesis, four ideas to improve the lock scheduling model by Verstichel were researched. The first idea is to change the resolution of the timesteps. The gain in performance was however not found to weight up against the loss in solution quality for resolution to be useful. The second idea is to drop the first come, first serve constraint that Verstichel created. This idea was also not found to be effective. The third idea is to divide the scheduling problem up into chunks. This is called cut separation. Chunks of around 25 vessels were found to be effective. The fourth and last idea is that of a maximum waiting time. The maximum waiting time makes the performance of the model better and also makes the scheduling model fairer. Data from the year 2016 was used to schedule all lockings. The LOSCO model is effective for reducing the average assage time per vessel with about 3.9 ± 0.12 SE minutes for the Krammersluizen and 2.0 ± 0.14 SE minutes for the Sluizen Hansweert compared to the SIVAK model. At the Kreekraksluizen, the model could not find a solution, as the Kreekraksluizen are a lot busier than the other locks that were tested. At the Kreekraksluizen on average every 7.8 minutes a vessel arrives, whereas at the Krammersluizen and the Sluizen Hansweert respectively every 14.0 and 13.0 minutes a vessel arrives throughout the year. The LOSCO model is only better than SIVAK if the lock is relatively quiet. At the busiest time of the day, typically in the afternoon, SIVAK performs better. The models perform equal at inter arrival times of around 8 to 10 minutes. Optimisation on economical value of the vessels was found to be less effective than optimisation on time. Optimisation on time was also found to be fairer. The LOSCO model is a step ahead towards a practical lock scheduling model. In order to achieve a fully practical model, some simplifications need to be expanded. It is recommended to first improve the model before it is applied in practice, as the model is able to… Advisors/Committee Members: van Koningsveld, Mark (graduation committee), Verheij, Henk (mentor), Molenaar, Wilfred (graduation committee), Macquart, Aubin (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Shipping locks; Locks; Scheduling; Constraint Programming; SIVAK; inland waterways; IWT; optimisation; passage time; Krammer locks; Kreekrak locks; Hansweert locks; job shop scheduling

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APA (6^th Edition):

van Adrichem, W. (. (2020). LOSCO A Ship Lock Scheduling Model. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ed6b3620-1e73-47b0-9600-4a71a73de670

Chicago Manual of Style (16^th Edition):

van Adrichem, Wouter (author). “LOSCO A Ship Lock Scheduling Model.” 2020. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:ed6b3620-1e73-47b0-9600-4a71a73de670.

MLA Handbook (7^th Edition):

van Adrichem, Wouter (author). “LOSCO A Ship Lock Scheduling Model.” 2020. Web. 20 Jan 2021.

Vancouver:

van Adrichem W(. LOSCO A Ship Lock Scheduling Model. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:ed6b3620-1e73-47b0-9600-4a71a73de670.

Council of Science Editors:

van Adrichem W(. LOSCO A Ship Lock Scheduling Model. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:ed6b3620-1e73-47b0-9600-4a71a73de670

Delft University of Technology

3. Buckers, M.D. (author). Minimum entrance width for inland ports.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:8e5bc2ea-22a9-4275-a7df-480e4da446c7

► In the Netherlands a large variety exists in the used widths of inland port entrances. In addition, multiple entrance layouts are applied. Currently, guidelines are… (more)

▼ In the Netherlands a large variety exists in the used widths of inland port entrances. In addition, multiple entrance layouts are applied. Currently, guidelines are missing for the design of inland port entrances along flowing waters with flow velocities larger than 0.5 m/s. A more generic insight into the minimum required nautical safe entrance width and most efficient entrance layout can reduce the design costs and time. The objective of this research was to find the minimum required nautical safe entrance width for generic situations for inland ports along flowing waters in non-tidal areas. To find this minimum safe entrance width, the most efficient entrance layout was determined. The influence of different design parameters was studied to provide the most efficient situation. Moreover, an insight into the influence of these parameters was needed to determine the effect on the most efficient situation when changing these parameters. A fast-time simulation study was chosen to analyse the influence of different design parameters on the entrance width. A rectangular entrance layout and a mathematical ship model comparable with a loaded CEMT class Va ship were used. Flow velocities between 1.0 and 2.5 m/s were taken into account. Moreover, the influence of the waterway width, entrance width, length and angle were analysed with the simulation study. The fast-time simulation program SHIPMA was used to perform the simulation study. As a result of the simulation study, it was found that the most efficient entrance angle is 120 degrees. Note that this is an entrance orientation in downstream direction. Also from a viewpoint of minimising siltation, this angle is more favourable than an angle of 90 degrees or smaller. The required entrance widths for arrivals sailing upstream and manoeuvring forward into the port are circa 55 and 80 meters, for flow velocities of respectively 1.0 and 2.5 m/s. For the determined most efficient layout, the forward manoeuvres into the port when sailing downstream were replaced by backward manoeuvres. For these backward manoeuvres the required entrance widths are circa 70 and 90 meters, for flow velocities of respectively 1.0 and 2.0 m/s. A linear relation was observed between the flow velocity and the required entrance width. For the most efficient entrance layout, it was found that the sensitivity of the entrance length, width and angle was small. These results are only valid for an available waterway width larger than 90 meters. For smaller waterway widths additional research is required. Furthermore, it should be mentioned that the limitations of the SHIPMA model also apply for the acquired research results. The most important limitation is that human interference was not included in this research. Besides, only a limited amount of design parameters was included in the simulation study. Additional research is required to study the influence of other design parameters on the required entrance width. Advisors/Committee Members: Vellinga, Tiedo (mentor), Verheij, Henk (mentor), Peters, Dirk Jan (mentor), Ten Hove, D. (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: Inland port; Port entrance width; Port entrance layout; SHIPMA; Ship manoeuvring simulation study; Port entrance optimisation; Inland shipping

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APA (6^th Edition):

Buckers, M. D. (. (2017). Minimum entrance width for inland ports. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8e5bc2ea-22a9-4275-a7df-480e4da446c7

Chicago Manual of Style (16^th Edition):

Buckers, M D (author). “Minimum entrance width for inland ports.” 2017. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:8e5bc2ea-22a9-4275-a7df-480e4da446c7.

MLA Handbook (7^th Edition):

Buckers, M D (author). “Minimum entrance width for inland ports.” 2017. Web. 20 Jan 2021.

Vancouver:

Buckers MD(. Minimum entrance width for inland ports. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:8e5bc2ea-22a9-4275-a7df-480e4da446c7.

Council of Science Editors:

Buckers MD(. Minimum entrance width for inland ports. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:8e5bc2ea-22a9-4275-a7df-480e4da446c7

Delft University of Technology

4. Vehmeijer, Leonore (author). Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:1abd88e0-9ab6-47fd-a503-2f19ba13bbff

► The main aim of this research was to establish which measures are significant in reducing the CO2 emission levels on the waterways between Rotterdam and… (more)

Subjects/Keywords: emission reduction; Emission; carbon dioxide recudtion; Inland shipping; Rotterdam; Antwerp; python; simulation models; measures; Rijkswaterstaat; Scheldt-Rhine; Zuid-Beveland; Krammer locks; Kreekrak locks; Hansweert locks; Volkerak locks

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

APA (6^th Edition):

Vehmeijer, L. (. (2019). Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:1abd88e0-9ab6-47fd-a503-2f19ba13bbff

Chicago Manual of Style (16^th Edition):

Vehmeijer, Leonore (author). “Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor.” 2019. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:1abd88e0-9ab6-47fd-a503-2f19ba13bbff.

MLA Handbook (7^th Edition):

Vehmeijer, Leonore (author). “Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor.” 2019. Web. 20 Jan 2021.

Vancouver:

Vehmeijer L(. Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:1abd88e0-9ab6-47fd-a503-2f19ba13bbff.

Council of Science Editors:

Vehmeijer L(. Measures for the reduction of CO2 emissions, by the inland shipping fleet, on the Rotterdam-Antwerp corridor. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:1abd88e0-9ab6-47fd-a503-2f19ba13bbff

Delft University of Technology

5. Taekema, Susanne (author). Climate change and Waal canalization: Study on the extent and effects of river canalization.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:f8e5558d-cb66-46e8-83f3-ac1689ff3fae

► This research is about the effects by climate change on the inland shipping sector of low discharges in the River Waal. Two different situations are… (more)

▼ This research is about the effects by climate change on the inland shipping sector of low discharges in the River Waal. Two different situations are investigated, one without any measure and one with canalization of the river. These two situations are compared with a zero variant where no navigation restrictions occur and therefore a so- called reference situation is also investigated. The focus is on the direct costs for the inland shipping sector due to navigation restrictions caused by insufficient water depth and canalization. Besides, the more integral picture is taken into account by the total costs due to canalization, which consist of the shipping costs due to canalization and the weir- and lock complex costs. For studying the effects of the different developments on the inland shipping sector an effect model is developed, validated and used. The consequences in case of several scenarios for this canalization option are investigated to get insight in the range of possible outcomes. The scenario analysis shows that the shipping costs for all scenario combinations are lower in case of canalization than in case without any measure. Looking to the more integral picture, the total costs due to canalization are only in case of the most extreme climate scenario lower than the shipping costs in case without any measure. For all other scenarios, the total costs due to canalization are much higher. During the sensitivity analysis, the total costs due to canalization for various weir- and lock complex costs are investigated. The result is shown in the figure alongside to here. For total weir- and lock complex costs below 400 million Euro the feasibility of Waal canalization is quite high, which means that for many scenario combinations the costs due to canalization are lower than the costs in case without measure. However, for WLC costs between 400 million Euro and 900 million Euro the feasibility decreases to 20%. It is expected that 1000 million Euro is quite large for one complex and therefore it is assumed that a feasibility of at least 20% is reached. Advisors/Committee Members: Vellinga, Tiedo (mentor), Verheij, Henk (graduation committee), Molenaar, Wilfred (graduation committee), van Dorsser, Cornelis (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Climate Change; River canalization; Inland shipping

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APA (6^th Edition):

Taekema, S. (. (2017). Climate change and Waal canalization: Study on the extent and effects of river canalization. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:f8e5558d-cb66-46e8-83f3-ac1689ff3fae

Chicago Manual of Style (16^th Edition):

Taekema, Susanne (author). “Climate change and Waal canalization: Study on the extent and effects of river canalization.” 2017. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:f8e5558d-cb66-46e8-83f3-ac1689ff3fae.

MLA Handbook (7^th Edition):

Taekema, Susanne (author). “Climate change and Waal canalization: Study on the extent and effects of river canalization.” 2017. Web. 20 Jan 2021.

Vancouver:

Taekema S(. Climate change and Waal canalization: Study on the extent and effects of river canalization. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:f8e5558d-cb66-46e8-83f3-ac1689ff3fae.

Council of Science Editors:

Taekema S(. Climate change and Waal canalization: Study on the extent and effects of river canalization. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:f8e5558d-cb66-46e8-83f3-ac1689ff3fae

Delft University of Technology

6. van Noort, Roel (author). Bow thruster velocities at multiple bank slope configurations and the stability of slope material.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:db5210d1-757c-492c-897a-e390da340d44

►

When sea-going or inland vessels berth along a mooring location they use their bow thruster to manoeuvre. When the induced propeller jet is directed towards… (more)

▼

When sea-going or inland vessels berth along a mooring location they use their bow thruster to manoeuvre. When the induced propeller jet is directed towards a slope it might affect the stability of the slope material and this can lead to damage when the loads are too large. The objective of this research was to extend and validate a method to determine hydraulic bed loads on slopes induced by bow thrusters and a method to determine the stability of slope material. In order to answer this objective scale model tests are conducted at the test facilities of Deltares. Velocity and stability measurements are performed during multiple test scenarios that contain variations in slope angle, axial distance and pile configuration. From the obtained data of the velocity measurements the time-averaged velocities and the turbulence intensities are determined. For example, the time-averaged slope velocities measured in the scale model that consists of an 1 : 3 slope with an open quay pile configuration and a rough bed (test scenario T10 in the research) are shown in Figure 1. These values are compared to the values according to the Dutch guidelines and a correction factor for the underestimation of the hydraulic bed load on a slope is defined for each test scenario. After that the consequences for a design of a slope protection are evaluated. Furthermore, for the stability tests it is determined what the critical slope velocity is. This is done for multiple criteria of initiation of motion. With these critical slope velocities a stability parameter for the stability relations can be determined that is applicable at situations similar to the scenario tested. These determined stability parameters are compared to the recommended stability parameters and the differences are evaluated. Finally recommendations are formulated for correction factors for the slope velocities induced by bow thrusters and recommendations are formulated for a proposed stability formula by an earlier research.

Ports and Waterways

Advisors/Committee Members: Vellinga, Tiedo (mentor), Verheij, Henk (graduation committee), Verhagen, Henk Jan (graduation committee), van der Hout, A. (graduation committee), Blokland, T (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Bow Thruster; Quay structures; Stability slope material; Banks; Propeller jet

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APA (6^th Edition):

van Noort, R. (. (2017). Bow thruster velocities at multiple bank slope configurations and the stability of slope material. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:db5210d1-757c-492c-897a-e390da340d44

Chicago Manual of Style (16^th Edition):

van Noort, Roel (author). “Bow thruster velocities at multiple bank slope configurations and the stability of slope material.” 2017. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:db5210d1-757c-492c-897a-e390da340d44.

MLA Handbook (7^th Edition):

van Noort, Roel (author). “Bow thruster velocities at multiple bank slope configurations and the stability of slope material.” 2017. Web. 20 Jan 2021.

Vancouver:

van Noort R(. Bow thruster velocities at multiple bank slope configurations and the stability of slope material. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:db5210d1-757c-492c-897a-e390da340d44.

Council of Science Editors:

van Noort R(. Bow thruster velocities at multiple bank slope configurations and the stability of slope material. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:db5210d1-757c-492c-897a-e390da340d44

Delft University of Technology

7. van Loon, Orin (author). Improving the filling jet schematisation through a lock door by taking into account the presence of a ship.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ff7dbfaa-a38c-4a2b-968d-97823034122a

►

This study treats the calculation of longitudinal forces on a ship in a lock chamber due to the levelling procedure. The focus will be on… (more)

▼

This study treats the calculation of longitudinal forces on a ship in a lock chamber due to the levelling procedure. The focus will be on the force resulting from the filling jet through the levelling door in the lock, with the main point of interest being the interaction between the ship and the flow resulting from the jet. To understand more about this interaction the following methods are used: the one-dimensional software model Lockfill, computational fluid dynamics (CFD) and scale model tests. The study was initiated in the context of improving the accuracy and applicability of the software Lockfill. Lockfill is based on the conservation laws of mass and momentum, while schematising the flow using a two-dimensional parameterization of the filling jet. A two dimensional situation was created for the scale model, neglecting variations over the width. The scaled situation was tested using a CFD model to prepare for the scale model measurements. This preparation revealed that the jet attaches to the bottom for the chosen geometry. The flow measurements consist of multiple point measurements and particle image velocimetry (PIV) measurements just downstream of the gate. The longitudinal forces on the ship were measured for variations in: keel clearance, downstream position of the ship with respect to the gate and water level difference over the gate. The presence of the ship reduces the deflection of the jet towards the bottom. The reason for the reduced deflection is the interference of the ship’s bow with the upper eddy limiting the fluid motion, resulting in a reduction of pressure and therefore a deflection of the jet in the upward direction. This means that the momentum flux in the jet for the situation without ship decreases faster because it attaches to the bottom closer to the gate. The measured forces were compared to the forces Lockfill would predict for the same situation. Both CFD and PIV predict the forces with a small relative error. Lockfill determines the force on the ship accurately as long as the momentum flux can be determined successfully. Determining the momentum flux comes down to a correct schematisation of the filling jet. Variations in keel clearance and discharge are covered quite well by Lockfill. However an increase in distance from the gate reveals big differences compared to the measurements. This is caused by an overestimation of momentum flux dissipation in the Lockfill jet schematisation. The reason for this is that in reality the jet stays more attached to the bottom, therefore maintaining a higher momentum flux. Taking into account the results from this study, the improvement of Lockfill should start with the schematisation of the filling jet. A start can be made by implementing the tendency of the jet to attach to a boundary.

Natte kunstwerken van de toekomst

Advisors/Committee Members: Vellinga, Tiedo (mentor), van der Ven, Pepijn (graduation committee), Verheij, Henk (graduation committee), Labeur, Robert Jan (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Lockfill; CFD modelling; Scale model; Locks; Particle Image Velocimetry (PIV); Force measurements; Flume experiments; Flow measurements; Ships; Star-CCM+; Jet

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APA (6^th Edition):

van Loon, O. (. (2017). Improving the filling jet schematisation through a lock door by taking into account the presence of a ship. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ff7dbfaa-a38c-4a2b-968d-97823034122a

Chicago Manual of Style (16^th Edition):

van Loon, Orin (author). “Improving the filling jet schematisation through a lock door by taking into account the presence of a ship.” 2017. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:ff7dbfaa-a38c-4a2b-968d-97823034122a.

MLA Handbook (7^th Edition):

van Loon, Orin (author). “Improving the filling jet schematisation through a lock door by taking into account the presence of a ship.” 2017. Web. 20 Jan 2021.

Vancouver:

van Loon O(. Improving the filling jet schematisation through a lock door by taking into account the presence of a ship. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:ff7dbfaa-a38c-4a2b-968d-97823034122a.

Council of Science Editors:

van Loon O(. Improving the filling jet schematisation through a lock door by taking into account the presence of a ship. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:ff7dbfaa-a38c-4a2b-968d-97823034122a

Delft University of Technology

8. van der Does de Willebois, Jeroen (author). Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:22eddd89-21a2-4819-ba1f-ee905a829364

► The canals of Amsterdam represent a draw for tourists and add to the value of real estate along the canals. More than 40 percent of… (more)

▼ The canals of Amsterdam represent a draw for tourists and add to the value of real estate along the canals. More than 40 percent of Amsterdam tourists take a trip through the canals, accounting for more than 3 million canal travelers annually. Therefore, the tour boat sector is crucial for tourism in Amsterdam. Many of the quay walls on Amsterdam’s canals have either reached the end of their lifespan or need replacing because of damage caused by overloading and the overuse of heavy supply trucks. Currently, a length of 200 km out of the total length of 300 km of quay walls have reached the end of their 100-year service life, and some walls have even passed that limit. In 2017, five incidents of quay-wall failure occurred. In 2018, three such incidents occurred. Hence, these quay walls are in critical need of replacement. Many are located along busy canals, which means that closing these canals will almost certainly directly lead to the congestion of traffic flow on the water. This is highly undesirable for the tourist sector. At the moment, there is no research being conducted into how to manage quay-wall renovations without disturbing transport over water. The main goal of this research project was to develop a first version of a model through which the impact of the quay wall renovations on transport over water (e.g., passenger transport and pleasure craft) can be assessed. Thus, the main research question for this project was as follows: "How can the impact on nautical traffic flow and congestion patterns of quay wall upgrade works in the canals of the City of Amsterdam be assessed?” A model was constructed based on the Amsterdam canal traffic analysis. An agent-based modeling framework was selected as a suitable framework, because it could give insight into not only if and when congestion occurs, but also why congestion occurs. The ABM framework is able to represent the distinct sailing speed and route selection of each vessel type, can reproduce the (routing) behavior of the three vessel types that interact, and had the additional option to incorporate the irrational behavior. Each vessel was modeled as an entity with its own logic (step-by-step instructions) and making its own decisions while moving on a graph. In order to reproduce observed traffic flow and congestion patterns, modeled vessel objects needed to move through this network, calculate their routes based on the network structure and properties, and queue at crossings. Therefore, this study applied network logic (graph theory) and queueing theory. This project used the open-source NetworkX package in Python to construct a network (graph) based on the spatial coordinates of the Amsterdam canal network, with nodes at crossings and bridges and edges connecting the nodes. Each vessel object in the model used algorithms from the NetworkX package to calculate its route on the network. The model also used the SimPy package to simulate queueing and crossing congestion at crossings with discrete time steps. To summarize, the model simulated on a… Advisors/Committee Members: van Koningsveld, Mark (mentor), Verheij, Henk (graduation committee), van Gelder, Pieter (graduation committee), Meeuwsen, Pepijn (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Congestion; Nautical traffic; Traffic Congestion; maritime transportation; Amsterdam; canals; quaywall; quay structures; simulated model; Python; Simulations; agent based model

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APA (6^th Edition):

van der Does de Willebois, J. (. (2019). Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:22eddd89-21a2-4819-ba1f-ee905a829364

Chicago Manual of Style (16^th Edition):

van der Does de Willebois, Jeroen (author). “Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study.” 2019. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:22eddd89-21a2-4819-ba1f-ee905a829364.

MLA Handbook (7^th Edition):

van der Does de Willebois, Jeroen (author). “Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study.” 2019. Web. 20 Jan 2021.

Vancouver:

van der Does de Willebois J(. Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:22eddd89-21a2-4819-ba1f-ee905a829364.

Council of Science Editors:

van der Does de Willebois J(. Assessing the impact of quay-wall renovations on the nautical traffic in Amsterdam: A simulation study. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:22eddd89-21a2-4819-ba1f-ee905a829364

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