Yes. The turn ratios are lost on rerouting.
Note that the option for period rerouting does result in a Gawron
assignment. (Gawron requires iterated simulations).

Am Di., 11. Jan. 2022 um 12:51 Uhr schrieb Mahima <[email protected]>:

> Hi Jakob,
>
> Thanks for the reply.
> So, it means if we are creating initial route file with turning ratio (20,
> 70, 30) using JTRrouter for a simulation and rerouting period is SET in the
> SUMO configuration file, the periodic rerouting will be automatically done
> by SUMO using the default GAWRON algorithm and not as per the turn ratios
> defined in the routing file.
>
> Thanks,
> Mahima
>
>
>
>
>
> On Tue, Jan 11, 2022 at 11:49 AM Jakob Erdmann <[email protected]>
> wrote:
>
>> Hello,
>>
>> jtrrouter is a tool to define initial routes from initial flows and
>> turning rates but it is not a rerouting algorithm.
>>
>> The following three concepts should be distinguished carefully:
>> 1. defining traffic based on traffic data (this may either take the form
>> of vehicles with fully specified routes or of trips with only origin and
>> destination edge):
>> https://sumo.dlr.de/docs/index.html#data_sources_for_demand_generation
>> 2. determining vehicle routes that avoid congestion (
>> https://sumo.dlr.de/docs/Demand/Dynamic_User_Assignment.html)
>> 3. letting vehicles re-route during the simulation:
>> https://sumo.dlr.de/docs/Demand/Automatic_Routing.html
>>
>> jtrrouter belongs into Category 1. In contrast, Categories 2 and 3 cannot
>> preserve turning rates so you must be careful when mixing them.
>>
>> regards,
>> Jakob
>>
>>
>> Am Mo., 10. Jan. 2022 um 23:42 Uhr schrieb Mahima <[email protected]>:
>>
>>> Hi,
>>>
>>> I want to know which is the fastest (meaning least average mean trip
>>> time of vehicles) re-routing algorithm in the congestion scenarios. I tried
>>> running some scenarios using SUMO and found jtrrouter to be the fastest.
>>>
>>> Please respond.
>>>
>>> Thanks,
>>> Mahima
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>>>
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