Hello,
I am writing this email to ask about an error I encountered in using traci. I
developed on Ubuntu 20.0 with SUMO 1.8.0.
In one of my projects, I intended to develop an adaptive traffic signal
controller and use traci.junction.subscribeContext as below:
traci.junction.subscribeContext(tlid, traci.constants.CMD_GET_VEHICLE_VARIABLE,
self.detect_radius,
[traci.constants.VAR_LANEPOSITION,
traci.constants.VAR_SPEED,
traci.constants.VAR_LANE_ID,
traci.constants.VAR_ROAD_ID])
When I run the whole project and the program executes the
traci.simulationStep() later, the sumo would encounter an error "Error:
tcpip::Socket::recvAndCheck @ recv: peer shutdown". But if I comment out the
traci.junction.subscribeContext, the traci.simulationStep() can be executed
properly.
Also, if I run a separate python file to solely run sumo simulation with
traci.junction.subcribeContext and traci.simulationStep under the same sumo
configure file and the same environment, the code can be executed without any
errors.
In this case, I am wondering if there were any possible causes that can
influence traci.junction.subscribeConext and traci.simulationStep() under a
certain condition? Or under what circumstances can traci.simulationStep() be
interrupted by traci.junction.subscribeConext?
I really appreciate your help. Thank you for your time.
Best regards,
George
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