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[sumo-user] error retrieving lateral speed (Error: Answered with error to command 0xa4: Get Vehicle Variable: unsupported variable 0x32 specified)
  • From: Mariam Wessam Hassan Mohamed Nour <mariam.nour@xxxxxxxxxxxxxxx>
  • Date: Tue, 26 Jan 2021 23:28:14 +0000
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  • Thread-topic: error retrieving lateral speed (Error: Answered with error to command 0xa4: Get Vehicle Variable: unsupported variable 0x32 specified)

Hello,

 

I'm trying to retrieve vehicle lateral speed using TraCI with a python script. However, I get the below error when I use the method:

C:\Users\xxx\src\sumo-1.2.0\test> python runner.py

Loading configuration... done.

Step #0.05Error: Answered with error to command 0xa4: Get Vehicle Variable: unsupported variable 0x32 specified

Traceback (most recent call last):

  File "runner.py", line 107, in <module>

    run()

  File "runner.py", line 56, in run

    latSpeed = traci.vehicle.getLateralSpeed(vehicle)

  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\_vehicle.py", line 215, in getLateralSpeed

    return self._getUniversal(tc.VAR_SPEED_LAT, vehID)

  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\domain.py", line 114, in _getUniversal

    result = self._connection._sendReadOneStringCmd(self._cmdGetID, varID, objectID)

  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\connection.py", line 127, in _sendReadOneStringCmd

    return self._checkResult(cmdID, varID, objID)

  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\connection.py", line 155, in _checkResult

    result = self._sendExact()

  File "C:\Program Files (x86)\Eclipse\Sumo\tools\traci\connection.py", line 105, in _sendExact

    raise TraCIException(err, prefix[1], _RESULTS[prefix[2]])

traci.exceptions.TraCIException: Get Vehicle Variable: unsupported variable 0x32 specified

Error: tcpip::Socket::recvAndCheck @ recv: peer shutdown

Quitting (on error).

 

 

This is my sumocfg file:

<?xml version="1.0" encoding="UTF-8"?>

 

<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/sumoConfiguration.xsd">

 

    <input>

        <net-file value="net.net.xml"/>

        <additional-files value="vtypes.add.xml,routes.rou.xml,emitt.emi.xml,detect.poi.xml"/>

    </input>

 

    <time>

        <begin value="0"/>

        <end value="500"/>

        <step-length value="0.05"/>

        <lateral-resolution value="0.3"/>

    </time>

 

    <processing>

        <emergencydecel.warning-threshold value="5"/>

        <collision.mingap-factor value="0"/>

    </processing>

 

</configuration>

 

Any help is appreciated.

 

Thanks,

Mariam

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