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Re: [sumo-dev] Retrieving the type of Junction
The junction type is currently not accessible via the TraCI API.  (for static network analysis, the python library sumolib is recommended: https://sumo.dlr.de/docs/Tools/Sumolib.html)

If you only need to identify traffic light junctions, you can use the functions in TrafficLight.h to retrieve this information:
- all traffic light controllers with getIDList
- all junction ids controller by a given controller with getControlledJunctions

regards,
Jakob

Am Mo., 1. Nov. 2021 um 18:16 Uhr schrieb Adrien Dubedat <adrien.dubedat@xxxxxxx>:

Hi,

 

I’m trying to retrieve the type of a Junction, I’m using the C++ library.

 

In an osm.net.xml file which lists all junctions, I see there are some different node types (https://sumo.dlr.de/docs/Networks/PlainXML.html#node_types) :

 

<junction id="101335548" type="traffic_light" x="9587.74" y="5049.51" incLanes="-770022998#1_0 480644124#1_0 690226256#9_0 -11661029#1_0" intLanes=":101335548_0_0 :101335548_1_0 :101335548_16_0 :101335548_17_0 :101335548_4_0 :101335548_5_0 :101335548_18_0 :101335548_19_0 :101335548_8_0 :101335548_9_0 :101335548_20_0 :101335548_21_0 :101335548_12_0 :101335548_13_0 :101335548_22_0 :101335548_23_0" shape="9587.30,5041.43 9593.31,5043.64 9592.97,5045.85 9593.23,5046.73 9593.79,5047.47 9594.63,5048.06 9595.77,5048.51 9593.99,5054.65 9591.44,5054.42 9590.39,5054.75 9589.50,5055.38 9588.76,5056.31 9588.18,5057.54 9582.17,5055.32 9582.52,5053.10 9582.26,5052.21 9581.71,5051.46 9580.87,5050.85 9579.74,5050.39 9581.63,5044.27 9584.11,5044.53 9585.13,5044.20 9586.00,5043.58 9586.72,5042.65">

 

I looked in the C++ classes / headers, mostly in “Junction” class, and I didn’t find anything related to that type, while we can get the Position or the Shape for example.

 

Does anyone have an idea on how to get this data ?

 

Thank you,

Adrien

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