Evaluation of Time-window Trajectories with respect to Fuel Consumption and Arrival Time

The flight planning process is an extensive and long process to direct and maintain a high level of operations within the airspace. As air traffic demand grows year after year, it's worthwhile to optimise the European air traffic system further. One way of optimising the system, is by creating optimal flight schedules that solve for demand...

Raising frequencies on a high-frequency metro network and how new technologies can improve timetable reliability: a case study in Rotterdam

Mass rapid transit plays an important role in providing a sustainable form of transport in densely populated areas. Public transport operators worldwide are experiencing an increase in popularity of their network and are experiencing ridership growth on their metro networks. To accommodate ridership growth, many transport operators are tasked...

Passenger punctuality: Assessing the impact of disruptions

Passenger punctuality is one of the most important measures to indicate and improve the service reliability of public transport operators. Previously, passenger punctuality measurements were mainly based on passenger counts in combination with vehicle locations. With the growing use of Automatic Fare Collection systems, passenger punctuality...

Passenger punctuality: An analysis of the method of calculation and describing models

The performance of the NS and ProRail is measured by, among others, passenger punctuality. With the introduction of the OV-chipkaart (the smart card of the Dutch public transport) new data of passengers became available. Therefore the NS developed a new method of calculating passenger punctuality. Based on the check-in and checkout locations and...

Railway Network Timetabling and Dynamic Traffic Management

The paper discusses the current state of research concerning railway network timetabling and traffic management. Timetable effectiveness is governed by frequency, regularity, accurate running, recovery and layover times, as well as minimal headway, buffer times and waiting times. Analytic (queuing) models and stochastic micro-simulation are...

Stochastic modelling of train delays and delay propagation in stations

A trade-off exists between efficiently utilizing the capacity of railway networks and improving the reliability and punctuality of train operations. This dissertation presents a new analytical probability model based on blocking time theory which estimates the knock-on delays of trains caused by route conflicts and late transfer connections in...

Delay propagation and process management at railway stations

Process operators at large railway stations have the difficult task to secure a fluent train traffic flow while minimizing deviations from established timetables. Variation in actual train departure times is inevitable due to many circumstances such as arrival delays and fluctuations in alighting and boarding time, even if some buffer time is...

Delay distributions in railway stations

The estimation of the precise arrival and departure times of trains at stations is done by means of a software tool that extracts the occupation and clearance times of each train per track section of the Dutch Railways‘ network. The software tool was applied to the whole automatically collected set of signal data of the area of Eindhoven during...

Improving Punctuality and Transfer Reliability by Railway Timetable Optimization

The Dutch railway network is operated close to capacity with the current safety system. This leaves little space for control by process operators by which a delayed train can cause severe delay propagation. The NS currently invest a large amount in punctuality improvement of the railway operations. This paper shows how the effect of delays can...