Hi Emre,
It is not clear to me whether you intend to build a simulation of a whole
city or just of the surroundings of a single/very few detection sites. If
you really think of the whole city, you won't get very close to replicate
single detector values. Different traffic situations can lead to the same
aggregated traffic counts, so even if SUMO can simulate traffic well enough
in general, recreating it from local measurements becomes a very hard task.
See<https://sumo.dlr.de/docs/Demand/Routes_from_Observation_Points.html>
for some general overview of how traffic counts can be used in SUMO.
If you want to simulate a small area and pay attention to vehicle dynamics,
then you have to calibrate the used car-following model
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#car-following_models>
and the vehicle type attributes
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#vehicle_types>
regarding headway, accel and decel capabilities. SUMO offers the TraCI
interface <https://sumo.dlr.de/docs/TraCI.html> (Python) to read/write data
during simulation and use them for own (optimisation) purpose.
Best regards
Mirko
-----Original-Nachricht-----
Betreff: [sumo-user] Building a real-world traffic scenario simulation in
SUMO - How to optimize&automate?
Datum: 2023-10-11T11:57:28+0200
Von: "Emre AKISKALIOĞLU via sumo-user" <[email protected]>
An: "[email protected]" <[email protected]>
Dear Eclipse Community,
I have the real traffic data values taken from the municipality in .xml
file and it looks like this:
23:00:00</DATE_TIME><LONGITUDE>29.0423583984375</LONGITUDE><LATITUDE>40.9817504882813</LATITUDE><GEOHASH>sxk9hu</GEOHASH><MINIMUM_SPEED>4</MINIMUM_SPEED><MAXIMUM_SPEED>66</MAXIMUM_SPEED><AVERAGE_SPEED>28</AVERAGE_SPEED><NUMBER_OF_VEHICLES>39</NUMBER_OF_VEHICLES></row>
I have millions of cells in in the same format of that .xml file. (File is
350 mb)
Whati did was: I choose one cell and created a map from open street map,
then create a random network, route, trips file following SUMO
documentation.
What i want to ask is, how can i optimize my simulation according to my
values? I want my simulation to have 39 vehicles, and for these vehicles i
want the speed values of min. speed 4, max. speed 66, avarage speed 28.
And since i have millions of data, can i optimize it with a python code for
each simulation?
I appreciate every help! Thank you so much in advance.
Best Regards
Emre AKISKALIOĞLU
PhD Candidate in Mechanical Engineering
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