I am passing the following command with almost all default values for the
parameters: marouter --route-files ./SUMO/Demand/trips_marouter.trip.xml
--net-file ./SUMO/Net/sumo_secondary_filter.net.xml -o
./SUMO/Output/marouter_output.rou.xml  --weights.interpolate
--paths.penalty 1 --junction-taz --scale 20 --tolerance 0.001
--max-inner-iterations 1000 --paths 5 --route-choice-method logit
--weight-attribute traveltime --logit.beta 0.15 --logit.gamma 4
--logit.theta 0.01 --max-iterations 10 --keep-all-routes
--weights.priority-factor 10 --routing-algorithm CH --aggregation-interval
3600 --routing-threads 36 --netload-output
./SUMO/Output/netload_Marouter.xml --verbose --ignore-errors --log
./SUMO/Output/Marouter_log.xml
I tried multiple versions with fewer options too (which I didn't save) and
still I got the response from Dijkstra router.

On Mon, May 17, 2021 at 12:48 PM Jakob Erdmann <[email protected]>
wrote:

> There is only the code:
> https://github.com/eclipse/sumo/blob/64a041537ce537690f5a22edcc46ef40df8d5fa0/src/marouter/ROMAAssignments.cpp#L115-L163
>
> astar should work fine with marouter default options. Which options are
> you passing?
>
> Am Mo., 17. Mai 2021 um 12:02 Uhr schrieb Sasan Amini <[email protected]
> >:
>
>> Thank for the explanation. Are there any documents to help me make a
>> realistic guesstimation of travel times? What I see in the course code is  
>> travelTime
>> = capacityConstraintFunction(edge, newFlow / intervalLengthInHours);
>> and thought travel times are directly exportable from Marouter. What is
>> the exact form of the capacityConstraintFunction? I think I can extract
>> densities from the netload file, but to calculate travel times I need to
>> know the function. The network is too big to run sumo even in the
>> mesoscopic model.
>> One other issue I noticed was that no matter which router I give to
>> Marouter, in the end, I always get the message Dijksrarouter has answered
>> the queries. I think in the current implementation only the Dijsktra router
>> is working (could be related to:
>> https://github.com/eclipse/sumo/issues/6935)?
>>
>> Thanks,
>> Sasan
>>
>> On Mon, May 17, 2021 at 11:08 AM Jakob Erdmann <[email protected]>
>> wrote:
>>
>>> The issue with fromJunction and toJunction is now fixed.
>>>
>>> The route costs in marouter are travel times multiplied with a
>>> traffic-density dependent capacityConstraintFunction.
>>> The actual travel time can only be guessed at at this point since it
>>> will depend on vehicle interactions. To compute empty-network travel times
>>> you can pass the marouter-routes to duarouter. If you need more realistic
>>> traveltimes, simulate with sumo.
>>>
>>> Am Fr., 14. Mai 2021 um 16:48 Uhr schrieb Sasan Amini <
>>> [email protected]>:
>>>
>>>> True, the scale parameter works perfectly fine. I am not sure if I was
>>>> testing it on a nightly build version of 1.8.x, but now on 1.9.0 it works.
>>>> However, the fromJunction - toJunction option for route files is not
>>>> working, while it works perfectly fine in DUAROUTER. Moreover, for the
>>>> output of MAROUTER  I was under the impression that route costs are travel
>>>> times (since the weight attribute is by default traveltime) but I get
>>>> values that are much larger than traveltime,  maybe distance in meters? Is
>>>> this cost in MAROUTER modifiable i.e. to get travel time of each trip?
>>>>
>>>> Best,
>>>> Sasan
>>>>
>>>> On Mon, May 3, 2021 at 9:19 AM Jakob Erdmann <[email protected]>
>>>> wrote:
>>>>
>>>>> Scaling route file input is supposed to work since 1.9.0 (and it's
>>>>> working in our test). Can you send me a minimal failing example for 1.9 or
>>>>> later?
>>>>>
>>>>> Am Sa., 1. Mai 2021 um 14:46 Uhr schrieb Sasan Amini <
>>>>> [email protected]>:
>>>>>
>>>>>> Dear all,
>>>>>>
>>>>>> I am running MAROUTER on an extremely large network and have only 1%
>>>>>> of the real demand, which means I have to scale it by a factor of 100.
>>>>>> However, when I define demand as route file and apply the --scale option,
>>>>>> it has no impact on the number of loaded vehicles. When I try to define
>>>>>> demand as flows, no valid vehicles are loaded. Any suggestion on how to
>>>>>> scale demand when using MAROUTER? or even a better way to downscale
>>>>>> capacity (similar to MATSim)?
>>>>>>
>>>>>> Best,
>>>>>> Sasan
>>>>>> _______________________________________________
>>>>>> sumo-user mailing list
>>>>>> [email protected]
>>>>>> To unsubscribe from this list, visit
>>>>>> https://www.eclipse.org/mailman/listinfo/sumo-user
>>>>>>
>>>>> _______________________________________________
>>>>> sumo-user mailing list
>>>>> [email protected]
>>>>> To unsubscribe from this list, visit
>>>>> https://www.eclipse.org/mailman/listinfo/sumo-user
>>>>>
>>>> _______________________________________________
>>>> sumo-user mailing list
>>>> [email protected]
>>>> To unsubscribe from this list, visit
>>>> https://www.eclipse.org/mailman/listinfo/sumo-user
>>>>
>>> _______________________________________________
>>> sumo-user mailing list
>>> [email protected]
>>> To unsubscribe from this list, visit
>>> https://www.eclipse.org/mailman/listinfo/sumo-user
>>>
>> _______________________________________________
>> sumo-user mailing list
>> [email protected]
>> To unsubscribe from this list, visit
>> https://www.eclipse.org/mailman/listinfo/sumo-user
>>
> _______________________________________________
> sumo-user mailing list
> [email protected]
> To unsubscribe from this list, visit
> https://www.eclipse.org/mailman/listinfo/sumo-user
>
_______________________________________________
sumo-user mailing list
[email protected]
To unsubscribe from this list, visit 
https://www.eclipse.org/mailman/listinfo/sumo-user

Reply via email to