This is related to your route definition. If you want to reuse a route
outside a flow, better define it outside the flow, assign it an ID and
refer to that ID in the flow or when adding a vehicle by TraCI. You can
find an example of such a route definition here
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#repeated_vehicles_flows>
.
Best regards
Mirko
-----Original-Nachricht-----
Betreff: [sumo-user] SUMO crashing when an added vehicle exits
Datum: 2023-09-09T12:17:26+0200
Von: "Didac Busquets via sumo-user" <[email protected]>
An: "[email protected]" <[email protected]>
Hi,
I have a simple TraCI scripts that add a vehicle to a network composed of a
single long link.
The vehicle is added correctly, but when that vehicle reaches the end of
the link, SUMO crashes.
The script is as follows (also attached, with the rest of the required
network and config files).
Why is it crashing?
import traci
sumo_binary = "sumo"
sumo_cmd = [sumo_binary, "-c", "single_highway.sumocfg"]
traci.start(sumo_cmd)
step = 0
route_id = "!type1"
while step < 300:
traci.simulationStep()
if step == 50:
print(f"Adding vehicle at {step} route {route_id}")
traci.vehicle.add(vehID="added_vehicle",
routeID=route_id)
traci.vehicle.setColor(vehID="added_vehicle", color=(255,0,0))
step += 1
traci.close()
The error when crashing is:
Traceback (most recent call last):
File "/home/didac/development/SUMO/networks/single_highway/run.py", line
12, in <module>
traci.simulationStep()
File "/home/didac/development/sumo-1.2.0/tools/traci/__init__.py", line
126, in simulationStep
responses = _connections[""].simulationStep(step)
File "/home/didac/development/sumo-1.2.0/tools/traci/connection.py", line
329, in simulationStep
result = self._sendExact()
File "/home/didac/development/sumo-1.2.0/tools/traci/connection.py", line
105, in _sendExact
raise FatalTraCIError("connection closed by SUMO")
traci.exceptions.FatalTraCIError: connection closed by SUMO
(notebooks-env) didac@didac-Precision-5530:~/development/SUM
Regards,
Didac
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