Network punctuality effects of infrastructure restrictions

Challenge

• The planning of infrastructure restrictions such as construction sites or slow lanes is highly complex
• An estimate of the impact on punctuality is at best only very roughly possible
• The simulation tool PRISM - as the Digital Twin of rail transport - is to be adapted in such a way that an evaluation of these constraints is made possible with regard to overall punctuality effects

Solution

• Using the example of slow speed sections (LA), suitable comparison and simulation scenarios were defined in which LAs identified in advance as critical can be "switched on and off".
• Based on the scenarios, a large number of simulations were carried out and in order to evaluate the on/off effect
• The robustness of the results was ensured by means of statistical criteria

Result

• Critical slow speed sections could be assessed with regard to their punctuality influences
• A framework for assessing general infrastructure constraints based on PRISM is available