Thank you for providing the example scenario.
You've encountered a bug in function couldChangeLane which would give wrong
results immediately after a lane change.
https://github.com/eclipse/sumo/issues/4381
This is now fixed in the latest development version.
You may either update your sumo version (new binaries available tomorrow at
http://sumo.dlr.de/wiki/Downloads#SUMO_-_Latest_Development_Version) or
circumvent the problem by catching the error like this:
try:
traci.vehicle.changeLane("newVeh1",
currentLane, 2000)
except
traci.TraCIException:
pass
regards,
Jakob
2018-08-02 11:16 GMT+02:00 himanshu soni <[email protected]>:
>
>
>
> On Thu, Aug 2, 2018 at 2:43 PM himanshu soni <[email protected]>
> wrote:
>
>> There is an error in the function call getLaneChangeStatePretty(), and
>> other are attached in the mail, and the red vehicle is my target vehicle.
>>
>> On Thu, Aug 2, 2018 at 12:20 PM Jakob Erdmann <[email protected]>
>> wrote:
>>
>>> please select one situation from your simulation where the result of
>>> couldChangeLane does not match your expectation
>>> For that situation, provide the following information:
>>> - the output of the calls getLaneChangeStatePretty(vehID, -1) and
>>> getLaneChangeStatePretty(vehID, 1)
>>> - a screenshot from sumo-gui centered on the vehicle with ~50m visible
>>> in all directions
>>> Additionally, please provide
>>> - the .sumocfg file
>>> - the .net.xml file
>>> - the output of the commandline call 'sumo --version'
>>>
>>> 2018-08-02 3:37 GMT+02:00 himanshu soni <[email protected]>:
>>>
>>>> Hello Jakob,
>>>> Give me suggestions related to this!
>>>>
>>>> On Wed, Aug 1, 2018, 2:53 PM himanshu soni <[email protected]>
>>>> wrote:
>>>>
>>>>> It doesn't help, using right-hand drive is giving me that error. Can
>>>>> you please go through the python code once. Corrected attachment is sent
>>>>> with this mail.
>>>>> Regards
>>>>>
>>>>> On Wed, Aug 1, 2018 at 2:27 AM Jakob Erdmann <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> The right of way rules are obviously different but apart from that,
>>>>>> the largest difference is the lane numbering which you already
>>>>>> encountered.
>>>>>>
>>>>>> 2018-07-31 19:19 GMT+02:00 himanshu soni <[email protected]>
>>>>>> :
>>>>>>
>>>>>>> Yes, it's left hand drive. Can you tell me what all things change in
>>>>>>> left hand drive?
>>>>>>> Thank you
>>>>>>>
>>>>>>> On Tue, Jul 31, 2018, 10:28 PM Jakob Erdmann <[email protected]>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Are you simulating left-hand traffic? In that case the lane
>>>>>>>> numbering would be reversed.
>>>>>>>>
>>>>>>>> 2018-07-31 18:03 GMT+02:00 himanshu soni <
>>>>>>>> [email protected]>:
>>>>>>>>
>>>>>>>>> I don't understand why I'm getting the error in using the function
>>>>>>>>> couldChangeLane(), the error gets resolved when I define the right
>>>>>>>>> lane
>>>>>>>>> with value 1 and left with -1, but the converse is the true version
>>>>>>>>> of it.
>>>>>>>>> Help me understand if this is kind of logical error or something
>>>>>>>>> else.
>>>>>>>>>
>>>>>>>>>
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