Impact Assessment of Rail Switch Location Design on Railway Network Resilience

In the upcoming years more train passengers are expected and with more trains on the tracks railway systems require greater resilience. Switches can play a major role during disruptions as they enable trains to be rerouted onto other tracks, allowing them to bypass the disruption but switches also facilitate overtaking, meet-pass operations at...

Impact of improved lane marking properties on the performance of Lane Keeping Assistance systems in varying circumstances

In the coming decade, Advanced Driver Assistance Systems (ADAS) will play a crucial role in improving traffic safety within the European Union (EU). Notably, the European Commission mandates that from July 2024, all new vehicles must be equipped with Lane Keeping Assistance (LKA) systems. LKA systems provide force feedback to drivers when...

Design of a structure free intersection controller for connected bicycles and cars using model based control and a genetic algorithm

Bicycles have an important role to play in the transition towards a more sustainable mobility. In order to achieve the modal shift towards bicycles, more must be done to accommodate cyclists. Although controlled intersections do increase the (perceived) safety of crossings with motorized vehicles, they are seen as major obstacles, and cyclists...

Comfort van pop-up fietspaden

Deze scriptie beschrijft een onderzoek naar de toepasbaarheid van verschillende pop-up fietspaden. Dit zijn fietspaden welke in zeer korte tijd kunnen worden aangelegd en in een latere fase definitief worden gerealiseerd of weer verdwijnen uit het straatbeeld. Aangezien pop-up fietspaden in de meeste gevallen op dezelfde rij loper liggen als...

Effects of variable cycle lengths on Transit Signal Priority operations

Traffic signals in a coordinated network normally use a common cycle length which remains constant at all times, including when there is a request for priority from a public transport vehicle. This enables green waves to be maintained effectively but can limit the signals' ability to promptly serve the prioritised vehicle....

Intersection control for cyclists with iSignum

The Netherlands is like no other country enthusiastic about cycling and is the home of 37.000 kilometers of bicycle paths. These bicycle paths need to cross other modalities and therefore intersections are needed. At signalized intersections, the control is mostly regulated using sensors such as push buttons and one or multiple inductive loops....

The significance of induced demand in road design: a viewpoint comparison

In this thesis, the significance of the so-called ‘induced demand’ phenomenon is discussed. This phenomenon can occur when a stretch of road which is prone to congestion is widened. Although this widening should in theory solve congestion problems, it can often spawn additional effects, typically undesired and occasionally unforeseen. These...

Shortening signal timings of vehicle-actuated controllers by using communicating, automated vehicles, in the transition period from fully human-driven vehicles to fully autonomous vehicles

Intersections are the bottleneck of traffic flow. Vehicle-actuated control improved the delay at an intersection by making the green phase variable based on the presence of vehicles as measured by detector loops. The duration of the yellow and red phase remains fixed times because intentions of specific human-driven vehicles (HDVs) are unknown,...

‘Green wave’-apps for cyclists: A thesis about apps that influence the green phase of bicycle traffic signals at intersections.

Many municipalities try to encourage cycling in their cities to increase the use of sustainable modes of transport and decrease congestion. They therefore implement innovative traffic solutions such as `green wave'-apps for cyclists. These `green wave'-apps influence the green phase of traffic lights by requesting a green light earlier than...

Public Transport during coronavirus outbreak: A research of measures taken in Dutch and international PT

In 2019 a virus surfaced in China that would later cause a pandemic: the coronavirus. Across the world measures were taken to reduce the spread of the virus. Public Transport (PT) had a unique position, being both an essential service and a place where the virus can easily be spread. This research investigates the measures taken in PT in the...

Safety Margin Development for a Space-Time Reservation Traffic Control System: A Research considering the Hybrid Traffic Period

With the arrival of Connected and Automated Vehicles (CAVs) concepts for traffic control systems emerge that let CAVs weave over the crossing area of an intersection. However, in the current literature, the safety of these vehicles is generally an assumption rather than a certainty. Moreover, the time period where CAVs and Human-Driven Vehicles ...

Priority behaviour of cyclists at crossings with and without priority markings

This research investigates the influence of priority road markings on cyclists’ behaviour at bicycle street crossings. Almost all bicycle street crossings are controlled by priority markings or by the priority rule: traffic coming from the right has priority. At these crossings there is a lot of interaction between cyclists, so it is important...

Algorithm Design for Traffic Signal Timings Predictions of Vehicle-Actuated Intersections using Support Vector Regression

Design of a subnetwork controller based on MFD's and perimeter flows.

The traffic state of a road network can be described by a so called macroscopic fundamental diagram (MFD). The average production is related to the accumulation of a specific road network in this diagram. Studies have shown that the MFD could be used in an evaluation based method of a certain road network. A promising application field of the...

Navigating for new traffic solutions: The use of probe data from consumer GPS navigation devices for the analysis of controlled intersections

Probe data from consumer GPS navigation devices provides a network-wide and cost-efficient data source for measuring vehicle movements. The measurement of traffic volume, route choice and delay on intersections is needed for efficient intersection control. Data collection from road-side sensors can provide this information but is expensive and...

Effect van verkeerslichten op turborotondes

Het aanleggen van turborotondes is de beste manier om ervoor te zorgen dat een kruispunt veiliger wordt. Turborotondes hebben namelijk weinig conflictpunten en een lage snelheid op de rotonde. Het liefst wordt dus zo lang mogelijk gebruik gemaakt van een turborotonde om de bouw van een kruispunt met verkeerslichten zo lang mogelijk uit te...