Re: [sumo-user] question relative to TAZ

[<christian.damdjowabo@xxxxxx>]

 

Yes but ,

What do you mean with “no correlation between OD-relation and type” ? I don’t really get this point.

The OD Matrix is defined for a specific vehicle type. So if that mean a correlation, then I have some correlation between the both.

Furthermore  i think for every vehicle type, one have to generate a new distribution. If i have as example 3 different type of vehicle I would have 3 vehicle type distribution. So the next step what is not really understandable for me, is to know how OD2TRIP would know the information about this additional file (vTypeDistribution)? Because in od2trip there is no option “—additional-file”. In this case I have to define as well for every type a new OD matrix.

 

Br

christian

 

 

 

Von: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> Im Auftrag von Jakob Erdmann
Gesendet: Mittwoch, 13. März 2019 10:19
An: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Betreff: Re: [sumo-user] question relative to TAZ

 

- Only the amitran format allows multiple vehicle types in the same input file.

- If there is no correlation between OD-relation and type, then you could use a vehicle type distribution and avoid splitting the matrix by type.

- You will always need at least two calls to generate vehicles and persons because you need to set the option --pedestrians or -persontrips to get persons.

 

Am Mi., 13. März 2019 um 10:09 Uhr schrieb <christian.damdjowabo@xxxxxx>:

Hello Jakob,

 

thank you for the hint.

 

That mean if I’m not using Amitran-format.

I have to define for in a step for 1 hour a new O/D Matrix. Should I do that for every object type (passenger car, bicycle , pedestrian …) in this case I think is a lot of work to that. Do we have somehow the possibility to define in the same O/D Matric different object type ?

 

Thank you against

 

Br

 

Christian

 

Von: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> Im Auftrag von Jakob Erdmann
Gesendet: Mittwoch, 13. März 2019 07:59
An: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Betreff: Re: [sumo-user] question relative to TAZ

 

Alternatively, you could use the Amitran-format https://sumo.dlr.de/wiki/Demand/Importing_O/D_Matrices#The_Amitran_format which allows modelling multple time slices and vehicle types in a single input file (in this case od2trips only needs to be run once).

 

Am Di., 12. März 2019 um 17:45 Uhr schrieb Jakob Erdmann <namdre.sumo@xxxxxxxxx>:

If you wish to model demand time lines that vary among the OD-pairs, you will have split your matrix along the time axis

(one matrix from 0-1 o'clock, one matrix from 1-2 o'clock etc...).

In this case, the documentation regarding timelines becomes irrelevant.

You then have to run od2trips multiple times and load all the generated trip files into duarouter (or directly into sumo).

 

regards,

Jakob

 

Am Di., 12. März 2019 um 15:27 Uhr schrieb <christian.damdjowabo@xxxxxx>:

Thank you Jakob,

 

i have another question relative to this point.

In the picture down you can find an picture of a excel file

 

 

In this picture “+” is source and “-“ sink.

As you can see there I have to for every edgeID a different timeline.

My question is to know the O/D matrix have to know the corresponding timeline for specific edgeID.

Also for me is at the moment not really clear how to define in the same timeline file, different timeline which correspond to different edgeID, and how we have to do the corresponding of this information in the O/D matrix. Because the Absolut number of vehicle for every edge have to be define in this. So based of this value the percentage in the timeline can be calculated.

Is the some more explained example?

I got some overview here : https://sumo.dlr.de/userdoc/Demand/Importing_O/D_Matrices.html#Daily_Time_Lines

But this example is not more detail in the explanation. Because we cannot see how The file Name (TGw2_PKW.txt, etc. …) are define.

Please could you give me more hint ?

 

Br

 

Christian  

 

 

Von: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> Im Auftrag von Jakob Erdmann
Gesendet: Montag, 11. März 2019 14:13
An: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Betreff: Re: [sumo-user] question relative to TAZ

 

You can use the same TAZ id for FROM and TO to describe traffic within that zone.

 

Am Mo., 11. März 2019 um 13:53 Uhr schrieb <christian.damdjowabo@xxxxxx>:

Hello Sumo users,

i have a question relative to the description of TAZ File.

Normally after describing an TAZ File we have to write the Matrix Cell. I am using the O-Format, which is given by the form:

FROM | TO | NUMVEHICLES

FROM and TO are both the TAZ id.

We can also use Differentiated Probabilities to describe TAZ .

So we can give in the same TAZ id many tazSource and Tazsink. My question now is to know, if I just have one TAZid which have the complete definition of Source, Sink and their weight. How should I describe the O-Format Matrix cell ?

I mean normally I have to put the TAZid Source (FROM) and TAZid sink (TO). But now all the source and sink are located in the same TAZid. How should we do ?

 

Br

 

Christian

 

 

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