[sumo-user] Question about Sumo and Traci to obtain VehicleID based on a

[<disruptivesolutionsnl@xxxxxxxxx>]

My scenario:

I have set up a working “net” with edges, junctions and lanes. Imported from Open Streetmap and it all works wel. I made routes and trips with 0d2trips and duarouter.

 

Now I want to interact with the “vehicles”. Say I have located a beginning (edge or junction) and an end (edge or junction) in a “net”… and when a “vehicle” passes a junction or edge I want a signa land obtain the “vehicle” information. Most likely its ID, because then I can obtain position, speed, etc..

 

How can I do this? I have tried something in TRACI in Python…. but I cannot “obtain” the “vehicle ID” and the trigger/event (for me) is uncertain if I did this right?

 

I “add” the codesnippet and not working code.

 

[code]

import os, sys

if 'SUMO_HOME' in os.environ:

    tools = os.path.join(os.environ['SUMO_HOME'], 'tools')

    sys.path.append(tools)

else:

    sys.exit("please declare environment variable 'SUMO_HOME'")

 

sumoBinary = "D:/eclipse/Sumo/bin/sumo-gui"

sumoCmd = [sumoBinary, "-c", "D:/eclipse/Sumo/autobahn - kopie.sumocfg"]

 

import traci

import traci.constants as tc

traci.start(sumoCmd)

junctionID = "6499463362"

traci.junction.subscribeContext(junctionID, tc.CMD_GET_VEHICLE_VARIABLE, 25, [tc.VAR_SPEED, tc.VAR_WAITING_TIME])

traci.edge.subscribeContext("6861416#3", tc.CMD_GET_LANE_VARIABLE,50)

 

step = 0

j_info = {}

 

while step < 1000:

   traci.simulationStep()

   #print("Vehicle:", tc.CMD_GET_VEHICLE_VARIABLE)

   pos_x, pos_y = traci.junction.getPosition(junctionID)

   lon, lat = traci.simulation.convertGeo(pos_x, pos_y)

   print("Lat:"+str(lat));

   print("Lon:"+str(lon));

   print("Time:", traci.simulation.getTime())

   print("Vehicles:", traci.simulation.getLoadedNumber())

   data2 = tc.CMD_GET_VEHICLE_VARIABLE

 

   vehicles=traci.vehicle.getIDList()

 

   i=0

 

   for i in range(0,len(vehicles)):

        print(len(vehicles))

        print(vehicles[i])

 

   edge = traci.edge.getSubscriptionResults("6861416#3")

 

 

   print("EdgeID:", edge)

   #if traci.inductionloop.getLastStepVehicleNumber("0") > 0:

   #    traci.trafficlight.setRedYellowGreenState("0", "GrGr")

   #"{'283': {64: 27.72624641781673, 122: 0.0}}")

 

   step += 1

 

   #for det in traci.lane.getIDList():

   #   print(" last=", traci.lane.getLastStepVehicleIDs(det))

 

   junction_info  = traci.junction.getSubscriptionResults(junctionID)

   print("Data:", str(junction_info ))

   if junction_info:

                               j_info = junction_info

                               print("Data:", traci.vehicle.getAngle(j_info))

  

   if str(type(junction_info )) == "<type 'dict'>":

                               for car in junction_info .items():

                                               print("YES")

                                               print("Car:",car)

   #if str(type(data)) == "<type 'dict'>":

   #     for car in data:

            #agent = agents[car]

            #agent.collectSumoData(car, data[car])

 

traci.close()

[\code]

 

Thanks Ben