Hi all,

I am quite new to SUMO and am looking for some help.

I am running an urban simulation with a vehicle travel dataset (start/ stop 
location, travel time) with each vehicle being added by TRACI. To simulate 
background traffic I am using a combination of random routes (randomroutes.py) 
and calibrators with traffic count information. To show realistic traffic 
density, I want to compare SUMO simulation travel times for vehicles added 
using TRACI with existing data for those routes. This involves around 800 
vehicles within the span of 1hr of simulation.

I have the following questions -

1.     Is there a way to limit outputs of FCD output file to specifically TRACI 
vehicles or even a specific vtype (I have a separate vtype for all the TRACI 
inputted vehicles) ? Maybe I can use this to derive travel times for these 
vehicles, currently my FCD file is almost 2GB in size due to the randomroutes 
vehicles.

2.     Is there any other method to calculate vehicle travel time by vehicle 
ids ? I found getAdaptedTraveltime method here 
(http://sumo.dlr.de/wiki/TraCI/Vehicle_Value_Retrieval) however one of the 
inputs to this function is time itself ? I can derive an edgeid list for each 
vehicle but what time do I input ?

3.     Regarding the calibrator, does it remove vehicles added by TRACI as 
well? Is there a way to restrict the type of vehicles it can remove from the 
simulation? (there is a type but as far as I've understood it only uses this 
property when adding vehicles)

Please let me know if you have any other advice or suggestions as well 
regarding my work as I have only started working on traffic modeling and SUMO 
within the last month.

Thank you
Best regards
Nandan
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