Re: [sumo-user] Junction Shapes

[Albert Jeans <ajeans2@xxxxxxxxx>]

Thank you, Jakob. This is really helpful!  --Albert

On Fri, Dec 13, 2019 at 12:45 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

S and E denote geometry endpoints that guide junction shape creation.

see https://sumo.dlr.de/docs/NETEDIT.html#specifying_the_complete_geometry_of_an_edge_including_endpoints

Keep in mind that the junction shapes are built to avoid overlapping roads.

Moving endpoints sideways often prevents overlap and leads to smaller junction shapes. (also setting a smaller junction radius value can help).

regards,

Jakob

Am Fr., 13. Dez. 2019 um 09:12 Uhr schrieb Albert Jeans <ajeans2@xxxxxxxxx>:

Hi SUMO Users,

I am constantly baffled and frustrated by the junction shapes SUMO comes up with, especially when lanes are merging or bifurcating. Often times the junction becomes large and only a sliver of the edge (road) remains between two junctions. Moving the geometrical nodes often results in unexpected shapes. Is there any documentation which describes how SUMO calculates the junction shapes? What do the nodes labeled "S" and "E" mean?

Thanks,

Albert Jeans

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