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Re: [sumo-user] Choice of step-method and device.stationfinder.

1. The Krauss model was developed with the default step-method and most tests are using the default so it remains the recommended mode.  While there are a number of known issues with the ballistic update (https://github.com/eclipse-sumo/sumo/issues?q=is%3Aissue%20state%3Aopen%20label%3Ac%3Aballistic_update) it is supposed to work and the departPos warning is not expected. Feel free to provide a minimal failure example for investigation (zipped scenario files).

2.  device.stationfinder.maxChargePower is currently not evaluated (and should potentially be removed from the documentation).

regards,
Jakob

Am Do., 27. Aug. 2026 um 19:41 Uhr schrieb Sven via sumo-user <sumo-user@xxxxxxxxxxx>:
Dear SUMO-Community,

to add the final touches to my project, im a currently again reading through the extensive documentation. 
However, i have encountered that some details remain unclear to me.

Concerning the step-method. I am using a simulation step-length of 1. The documentation on defining the integration method recommends using the step-method ballistic for large timesteps (1) and if the car following model is continous. I am using the standard "carFollowing-Krauss" and have found the publication "SUMO’s Interpretation of the Krauß Model", which uses the term "semi-implicit Euler update", and seeems to be between continous and discrete, which doesn't tell me much. 
I therefore wanted to ask if the standard model falls into the defintion of continous and if so, is using the ballistic model recommended with it at step-length 1 and with no use of a sublane model? 

I also noticed that changing the model to ballistic messes with starting and stopping at bus stops:
"Warning: Invalid departPos 18.23 given for vehicle 'bus_3237', time=29959.00. Inserting at lane end instead."

My second problem concerns the station finder, in combination with the battery device, I don't know which of these to define for setting the charging power:

"device.stationfinder.maxChargePower"    The maximum charging speed of the vehicle battery
"device.battery.maximumChargeRate"  Maximum charging rate of the battery

Which option takes precedence over the other?

Again, concerning the station finder, should I use the reserve factor when my goal is to extract realistic usage estimations, or would this just skew my results in favour of a security margin?
"reserveFactor" Scale battery need with this factor to account for unexpected traffic situation.

Please see my v_type and config files attached to 

If anyone could give me some hints at how to proceed here, id be very grateful.

Best regards,
Sven
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