Thank you, I will try that !
De : sumo-dev <sumo-dev-bounces@xxxxxxxxxxx>
De la part de Jakob Erdmann
Envoyé : Wednesday, November 3, 2021 6:11 PM
À : sumo developer discussions <sumo-dev@xxxxxxxxxxx>
Objet : Re: [sumo-dev] Retrieving the type of Junction
You can use traci.trafficlight.getControlledLanes and getControlledLinks
Lanes with ids of the form :<JUNCTIONID>_w<index>_0 are walkingareas
Lanes with ids of the form :<JUNCTIONID>_c<index>_0 are crossings
The index in the result lists corresponds to the index in the phase state.
Thank you for your reply, I only just see it now because your emails were considered as spams by my company’s IT department …
It looks like I’ve been able to extract those controlled junctions, perfect.
I have another question. I’m interested in retrieving the state of the traffic lights associated to pedestrian crosswalks.
In the documentation, it says that the crosswalks’ states are at the end of “state” string when calling “getRedYellowGreenState()”.
Is there a way to know where do the pedestrian crosswalks start in that string ? Or is there a way to identify those crosswalks ?
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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
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)
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
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
Does anyone have an idea on how to get this data ?
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