Dear SUMO-Community,
I am using SUMO 1.27 for a railway dynamics comparison in my master thesis.
I have three questions about the interpretation and documentation of the Rail model:
- I am using the parameter massFactor successfully with carFollowModel="Rail". However, I could not find this parameter in the Railways documentation. Is there a specific reason why massFactor is not listed there? Could it be added to the Railways documentation,
including a short explanation of how it affects the acceleration calculation?
- For my evaluation, I use traci.vehicle.getDistance() as the travelled distance of the train. In the TraCI documentation, getLanePosition() and getPosition() are explicitly described with respect to the front bumper, but for getDistance() I only found the
description “the distance, the vehicle has already driven”. For a long train using carFollowModel="Rail", does getDistance() also refer to the train head / front bumper, or is another reference point used?
- Does the SUMO Rail model simulate curve resistance? More generally, does it include any route-dependent railway resistances besides gradient resistance, such as curve resistance, tunnel resistance or other
infrastructure-related resistances? Are any of these features planned for future versions of the Rail model?
Thank you very much in advance for your help.
Best regards,
Lars
