I changed “newCar” into “reroutingType” in order to do exactly as in the
documentation, I already checked that correspondence, the line I use is:
traci.vehicle.add("car", "route1", typeID="reroutingType")
The error SUMO gives me is:
Error: Answered with error to command 0xc4: Invalid type 'reroutingType' for
vehicle 'car'
Error: tcpip::Socket::recvAndCheck @ recv: Socket reset by peer
Quitting (on error).
Da: [email protected] <[email protected]> Per conto di
Jakob Erdmann
Inviato: 03 July 2018 12:12
A: Sumo project User discussions <[email protected]>
Oggetto: Re: [sumo-user] R: TraCI creation of new vehicle and route
In your call to addVehicle you use the type id 'newCar'
traci.vehicle.add("car", "route1", typeID="newCar")
but you should use "reroutingType" instead.
As it is now, routing is not attempted and the error message only indicates
that the edges are not directly connected.
2018-07-03 12:06 GMT+02:00 Stefano Niero
<[email protected]<mailto:[email protected]>>:
Thank you very much. The route insertion was my mistake.
For what concerns the trip, I did read the documentation and I did equip the
vehicle with a rerouting device: here is the additional file that describes the
vehicle
<additional>
<vType id="reroutingType" type="passenger" length="4.5"
accel="3.5" decel="2.2" maxSpeed="8.0" color="1,1,0" sigma="0.5"
guiShape="passenger/hatchback">
<param key="has.rerouting.device" value="true"/>
</vType>
</additional>
Still, the error I get if I give two non consecutive edges is:
File "C:\Program Files (x86)\DLR\Sumo\tools\traci\connection.py", line 104, in
_sendExact
raise TraCIException(prefix[1], _RESULTS[prefix[2]], err)
traci.exceptions.TraCIException: Vehicle 'car' has no valid route. No
connection between edge 'gneE2' and edge '-gneE9'.
Which is not true, as a matter of fact in the same simulation there is a flow
of vehicles specifies in the .rou.xml file that goes through the same trip and
it works for them. Am I missing anything?
Da: [email protected]<mailto:[email protected]>
<[email protected]<mailto:[email protected]>> Per conto
di Jakob Erdmann
Inviato: 02 July 2018 20:59
A: Sumo project User discussions
<[email protected]<mailto:[email protected]>>
Oggetto: Re: [sumo-user] TraCI creation of new vehicle and route
Hello,
1) adding a route only succeeds if the name is not already used by another
route. Therefore, adding the same route again and again in a loop cannot work.
The resulting error is not fatal, however. You can catch the TraCIException and
continue with your script.
2) adding a trip (a route with two non-consecutive edges) only works if the
vehicle is equipped with a rerouting device. This is even explained in the
documentation you linked:
http://sumo.dlr.de/wiki/TraCI/Interfacing_TraCI_from_Python#Add_trips_.28incomplete_routes.29_dynamically
If no route is found between the two edges (because they are in disconnected
parts of the network) you will get an exception but you can catch that as well.
regards,
Jakob
2018-07-02 19:18 GMT+02:00 Stefano Niero
<[email protected]<mailto:[email protected]>>:
Dear SUMO Community,
I tried generate a new trip and a new vehicle using the example written in the
following page:
http://sumo.dlr.de/wiki/TraCI/Interfacing_TraCI_from_Python
At the beginning, to understand how it works I decided to keep things simple
and used a minimal map (attached).
The line of codes I wrote are:
def run():
step = 0
while step < 1000:
#traci.simulationStep()
traci.route.add("route1", ["gneE2", "gneE5"])
traci.vehicle.add("car", "route1", typeID="newCar")
step +=1
traci.close()
sys.stdout.flush()
where the two edges are contiguous because if I select two edges that are far
one from the other it tells me that no connection is available (why?). Starting
the program it opens the GUI but playing the simulation it stops immediately
saying:
----------------------------------------------------------------------------------------
Loading configuration... done.
***Starting server on port 56264 ***
Loading net-file from 'bus.net.xml'... done (2ms).
Loading additional-files from 'bus.add.xml'... done (0ms).
Loading done.
Simulation started with time: 0.00
Error: Answered with error to command 0xc6: Could not add route.
Error: tcpip::Socket::recvAndCheck @ recv: Socket reset by peer
Quitting (on error).
-------------------------
On SUMO-GUI, while PyCharm log gives me:
Loading configuration... done.
Traceback (most recent call last):
File "C:/Stefano/For school/Tesi/TraCI/Simulation/runner.py", line 100, in
<module>
run()
File "C:/Stefano/For school/Tesi/TraCI/Simulation/runner.py", line 67, in run
traci.route.add("route1", ["gneE2", "gneE5"])
File "C:\Program Files (x86)\DLR\Sumo\tools\traci\_route.py", line 46, in add
self._connection._sendExact()
File "C:\Program Files (x86)\DLR\Sumo\tools\traci\connection.py", line 104,
in _sendExact
raise TraCIException(prefix[1], _RESULTS[prefix[2]], err)
traci.exceptions.TraCIException: Could not add route.
Process finished with exit code 1
Can you tell me what I did wrong?
Thank you very much
Stefano Niero
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