Workshop on Public Transport - January 23, 2020

ECOPT intends to organize several small workshops throughout the year. The next workshop takes place on January 23, 2020, at the Erasmus University Rotterdam.

Speakers and program

The speakers in this workshop are:

  • Ralf Borndörfer (Zuse Institute Berlin & Freie Universität Berlin)
  • Jesper Larsen (Technical University of Denmark, Copenhagen)

The program is as follows.

13:45 - 14:00 Welcome  
14:00 -15:00 Jesper Larsen Scheduling of large railway projects – a multiobjective approach considering passenger and operator
15:00 - 15:30 Break  
15:30 - 16:30 Ralf Borndörfer Train timetabling under moving block restictions
From 16:30 Drinks  


Jesper Larsen: Scheduling of large railway projects – a multiobjective approach considering passenger and operator

Abstract: Even during renewal and upgrading of railway infrastructure and technology railway operators need to provide high quality services. Large infrastructure projects can have a significant effect on operators ability to perform a stable and continued service due to disturbances and decreased capacity due to the occupation of infrastructure over extended periods of time. In this presentation I will propose a multiobjective project scheduling optimization model for railway infrastructure projects. The approach will incorporate inconvenience caused to users of the infrastructure. We illustrate how the model can be used in an interactive way by planners based on their preferences, and we show that Pareto optimal solutions can be found in reasonable time using instances with realistic features. The result is a decision support model to aid infrastructure project planners in ensuring that passenger and operator inconvenience are also taken into account.

Co-authors: Martin Philip Kidd, Richard Martin Lusby

Ralf Borndörfer: Train timetabling under moving block restictions

Abstract: One of the main features of the upcoming European train control system (ETCS) is to allow to run trains in absolute braking distance instead of obeying the classical fixed-block safety regulations. The hope is that such a regime will significantly increase the capacity of the railway infrastructure. This talk proposes a novel optimiziation model to harvest this potential. It is based on a velocity discretization that allows to model the physics of train acceleration and decelaration. The resulting headway constraints can be separated on the fly and dealt with in a cutting plane algorithm. Computational results for a major corridor in Germany illustrate the feasbility of the approach and the associated optimization potentials.

Venue: EUR campus Woudestein, Room M2-11. Directions on how to get to the campus and a map of the campus can be found here

Registration: Participation in the workshop is free. However, only a limited number of places are available. Therefore, we ask you to register for the workshop by sending an email to Registrations will be served on a first-come-first-serve basis.