Re: [sumo-user] Using SSM for collision recognition

[허송무 <xxxxx@xxxxxxx>]

sorry. The image is not attached. 

 

 

In the situation in the image above, a vehicle going from left to right and a vehicle going from top to bottom may collide. 

In order to avoid this collision, I am trying to get the possibility of a collision using traci and do some manipulation. Is there any way I can find out? 

 

Thanks.

-----Original Message-----
From: "Jakob Erdmann"<namdre.sumo@xxxxxxxxx>
To: "Sumo project User discussions"<sumo-user@xxxxxxxxxxx>;
Cc:
Sent: 2022-06-09 (목) 19:37:00 (GMT+09:00)
Subject: Re: [sumo-user] Using SSM for collision recognition
 

The API for accessing the SSM device via TraCI is currently very narrow and there are no further methods.

 

There is no image attached to your question so maybe try to send this again.

 

The pre-conflict time depends on the threshold for the measure (logging starts once the threshold is reached). The post-conflict output is tracked for a default of 5s (device.ssm.extratime) 

Am Do., 2. Juni 2022 um 10:50 Uhr schrieb Lu <kmo2578@xxxxxxxxx>: 

Hi.

I want to get collision probability and collision point (coordinates) through traci using SSM. 

"https://sumo.dlr.de/docs/Simulation/Output/SSM_Device.html#restricting_ssm_device_to_edges_and_junctions" 

Are there only minTTC, minPET, and maxDRAC parameters that can be obtained through traci? 

Also, I would like to know about the possibility of collision between vehicles that cannot be connected as in the attached photo. 

Which method is more efficient using SSM and traci? 

Also in the output of SSM: <conflict begin="5.74" end="11.00" ego="vehicle_0" foe="vehicle_3">

Begin and end say <log-begin-time>, <log-end-time>, but I'm curious what the standards are.

 

Thanks!

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