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[sumo-user] an error regarding The DRT service
  • From: Seyed Mehdi Meshkani <seyedmehdi.meshkani@xxxxxxxxxxxx>
  • Date: Thu, 14 Mar 2024 15:05:36 +0000
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  • Thread-topic: an error regarding The DRT service
Hello, 

I have an issue with running DRT. When I run it, I get this error, and I cannot resolve it. 

"Error: Answered with error to command 0xc4: Could not interpret reservations for vehicle '9' (Reservation id '9' is not known).
Traceback (most recent call last):
  File "C:\Users\MehdiMeshkani\Desktop\SUMO_Simulations\Opus_Data\drt\drtOnline.py", line 549, in <module>
    main()
  File "C:\Users\MehdiMeshkani\Desktop\SUMO_Simulations\Opus_Data\drt\drtOnline.py", line 526, in main
    traci.vehicle.dispatchTaxi(veh_id, stops[1:])
  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\_vehicle.py", line 1469, in dispatchTaxi
    self._setCmd(tc.CMD_TAXI_DISPATCH, vehID, "l", reservations)
  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\domain.py", line 164, in _setCmd
    self._connection._sendCmd(self._cmdSetID, varID, objectID, format, *values)
  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\connection.py", line 231, in _sendCmd
    return self._sendExact()"

When the number of passengers and cars are small such as 5 passengers and 2 cars, it works properly but when I increase the number of passengers and cars, it keeps giving me the error. 

This is the way I defined cars: 

<trip id="8" type="taxi_5"  depart="0.00"  >
<stop lane="951210468#11_0" triggered="person"/>
</trip>
<trip id="9" type="taxi_5"  depart="0.00"  >
<stop lane="951210468#11_0" triggered="person"/>
</trip>


This is the way I defined passengers: 

<person id="2" depart="129.0" departPos="319.14"><ride from="951210468#11" to="475848926#0" lines="taxi" /></person>
<person id="3" depart="491.0" departPos="7.5"><ride from="1093958533#0" to="475848926#0" lines="taxi" /></person>

I was wondering if you could assist me with this problem. 




Kind Regards, 
Mehdi



------------------------------------------------------------------------------
Seyed Mehdi Meshkani, Ph.D. 
Postdoctoral Fellow in Sustainable Mobility Management
BusPas Inc. & Concordia Institute for Information Systems Engineering (CIISE)
seyedmehdi.meshkani@xxxxxxxxxxxx
mehdi@xxxxxxxxxx

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