As per the discussion, I tried to extract the stage information using TraCI
and combine the log files to generate the ticket data. However, for some of
the cases, I get fatal errors as follows.
File "/home/dhrien/Documents/sumos/Bologna/acosta_persontrips/demo.py",
line 86, in run prevStage = traci.person.getStage(peopleIDs[i],-1)
File "/usr/share/sumo/tools/traci/_person.py", line 192, in getStage
tc.VAR_STAGE, personID))
File "/usr/share/sumo/tools/traci/connection.py", line 158, in _checkResult
result = self._sendExact()
File "/usr/share/sumo/tools/traci/connection.py", line 101, in _sendExact
raise FatalTraCIError("connection closed by SUMO")
FatalTraCIError: connection closed by SUMO
The above error is due the following code segment written inside run method
of TraCI program.
currStage = traci.person.getStage(peopleIDs[i])
if currStage.type == 3: #record only if driving or riding
try:
prevStage = traci.person.getStage(peopleIDs[i],-1)
except FatalTraCIError:
print("Previous Stage Error for Person",peopleIDs[i])
continue
Note that previous stage is retrieved only if a person is boarded into a
vehicle. Also, l am trying handle the exception but the program stops.
Further, I do check if previous stage is null (None) and then operate but
unfortunately nothing works at this moment.
Please suggest.
thanks and regards,
Dillip Rout
On Thu, 7 May 2020 at 12:46, Jakob Erdmann wrote:
> Yes. If you need to retrieve data while the simulation is still running,
> you generally need to use traci. If you can wait until the simulation is
> finished you can retrieve the ticket information from the xml outputs as
> well.
>
> Am Do., 7. Mai 2020 um 09:06 Uhr schrieb Tripplanner Mumbai <
> tripplanner...@gmail.com>:
>
>> Hello Jackob,
>> Do you mean that I should retrieve person data using TraCI (links-
>> https://sumo.dlr.de/docs/TraCI/Person_Value_Retrieval.html,
>> https://sumo.dlr.de/pydoc/traci._person.html#PersonDomain-getStage)?
>> Thanks in advance.
>>
>> On Thu, 7 May 2020 at 12:13, Jakob Erdmann wrote:
>>
>>> Hello,
>>> during the simulation, you can use traci.person.getStage to access past,
>>> current and future stage information including the destination busStop of
>>> each stage (which is the origin stop for the subsequent stage).
>>> regards,
>>> Jakob
>>>
>>> Am Do., 7. Mai 2020 um 08:36 Uhr schrieb Tripplanner Mumbai <
>>> tripplanner...@gmail.com>:
>>>
Hello,
I am trying to capture the origin and destination bus stops of each
passenger (or on aggregate for a group) and issue tickets accordingly. I
found that has information about the line, number of passengers
boarded and the source bus stop, as given below.
>>> parking="0" started="983.00" ended="1080.00" delay="0.00"
initialPersons="18" loadedPersons="3" unloadedPersons="12"
initialContainers="0" loadedContainers="0" unloadedContainers="0"
busStop="busStop#34"/>
Also, it can be noted that has information about the
destination stop while riding, as given below.
>>> busStop="busStop#31"/>
Now, the question is how to capture both origin and destination
information while the simulation is going on. Just like the stop
information, is there any way to generate the ticket information.
regards,
Dillip Rout
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