Re: [sumo-user] Question about the net.xml file

[Mirko Barthauer <m.barthauer@xxxxxxxxxxx>]

Internal edges may represent turning lanes at an intersection. So if you want edges to be connected, better consider them!

 

Best regards

Mirko

 

 

 

-----Original-Nachricht-----

Betreff: Re: [sumo-user] Question about the net.xml file

Datum: 2023-11-01T12:47:34+0100

Von: "Charitha Heendeniya" <buddih09@xxxxxxxxx>

An: "Mirko Barthauer" <m.barthauer@xxxxxxxxxxx>

 

 

 

Thank you very much for the reply. 

 

So, if I understand correctly, the purpose of the internal edges is to match the lanes of two edges at their intersection point. Am I right?

If that is true, I can still generate a complete graph of the road network (without consideration of matching lanes at intersections) only with the normal edges, am I right? 

Or is it possible to have disconnected edges if I discard internal edges and use only normal edges to generate a networkx graph of the road network?

 

Thanks a lot,

Buddi

On Wed, Nov 1, 2023 at 12:22 PM Mirko Barthauer <m.barthauer@xxxxxxxxxxx> wrote:

Internal edges are part of an intersection. You can read more about the SUMO networks in our documentation.

 

Best regards

Mirko

 

 

 

 

-----Original-Nachricht-----

Betreff: [sumo-user] Question about the net.xml file

Datum: 2023-11-01T11:18:25+0100

Von: "Charitha Heendeniya via sumo-user" <sumo-user@xxxxxxxxxxx>

An: "sumo-user@xxxxxxxxxxx" <sumo-user@xxxxxxxxxxx>

 

 

 

Dear sir,

 

I would like to load *.net.xml file (OSM file processed by netwocnvert) as a GeoPandas data frame for exploratory work. 

Naturally, I'm interested in the features with geometry information such as the edges of the network. 

 

I found two types of edges in the XML file: One with function="internal" attribute and the one without. 

 

    <edge id=":10002263193_0" function="internal">
        <lane id=":10002263193_0_0" index="0" allow="pedestrian delivery bicycle" speed="3.65" length="4.67" shape="5916.19,12233.05 5916.97,12231.83 5917.76,12231.42 5918.57,12231.81 5919.39,12233.00"/>
    </edge>

 

    <edge id="1952" from="417774753" to="417774792" priority="3" type="highway.residential">
        <lane id="1952_0" index="0" disallow="tram rail_urban rail rail_electric rail_fast ship" speed="13.89" length="42.28" shape="5525.69,9779.31 5525.02,9737.04"/>
    </edge>

 

I can see the edges without function="internal" attribute when I load the network in netedit. So, these edges correspond to the actual road network.

But what are the other edges with function="internal" attribute?

 

I appreciate if you could give some advice.

 

Regards

Buddi