Hi,

Regarding the first problem, if you mean bus lanes (only lane) then you can
set the departLane (vehicle) attribute to "allowed". If you mean that whole
edges where vehicles are disallowed then you can do what Mirko suggested or
you can find the set of edges where vehicles are not allowed and delete
them from the taz definition xml file (using python for example not by
hand).
Regarding the second problem (connectivity), it is not that difficult to
solve it. First, you must create a graph (e.g. in networkx) where nodes of
the graph will be the edges of your traffic network and the edges of the
graph will be the connections of the sumo network. Then, you can retrieve
the connectivity of each edge (node): find the set of edges that can be
reached by all edges (sink edges) and the set of edges that can reach all
other edges (source edges). Then create an xml file with taz definitions
where you give the sources and the sinks (see taz definition) (either
weighted or uniformly). This will work pretty well if your (traffic
network) directed graph is "generally" strongly connected in order to avoid
excluding too many edges.

Best regards,
Manos


Στις Δευ 18 Δεκ 2023 στις 10:57 π.μ., ο/η LONG, Meng [Student] via
sumo-user <[email protected]> έγραψε:

> Hi SUMO expert,
>
> I am using od2trips and tazRelation file to obtain route file , but there
> are many warnings and errors like below when I execute trip2route:
>
> Error: Mandatory edge '681882530' not reachable by vehicle '64140'.
> Error: The vehicle '64140' has no valid route.
> Error: No connection between edge '28109408' and edge '86113233#2' found.
>
> I found two reasons: 1) trips of cars are generated on bus lanes (disallow
> cars); 2) vehicles generate on destination edge ( only can exit the
> network), so they cannot find connection between the destination edge and
> other edges. As my network is big and TAZ file is obtained by
> edgesInDistricts.py, I cannot specify source and sink edge manually for
> each TAZ.
>
> Therefore, how can I fix the above two problems? Is there any method to
> constrain od2trips not assigning cars on bus lane, and any method to
> specify source and sink edge in a large network? And there may be many
> other problems I didn't find either. Could you give me any suggestions?
>
> As the attachment size limit, I only attached my original files for your
> reference. You can run the command following "using commands.txt".
>
>
> Many thanks,
> Meng
>
>
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