Re: [sumo-user] Get per-vehicle collision using TraCI?

[Mirko Barthauer <m.barthauer@xxxxxxxxxxx>]

Hi Ruud,

 

just in case you would want to return to Simulation::getCollisions(), here is an example where it it used within the Python TraCI interface.

 

Best regards

Mirko

 

 

 

 

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

Betreff: Re: [sumo-user] Get per-vehicle collision using TraCI?

Datum: 2023-07-25T11:19:20+0200

Von: "Ruud van Gaal via sumo-user" <sumo-user@xxxxxxxxxxx>

An: "Sumo project User discussions" <sumo-user@xxxxxxxxxxx>

 

 

 

Hi Mirko,

 

Thanks for the affirmation, I'm now using Simulation::getCollidingVehicles*(), which is good enough. I didn't get any return values from my Simulation::getCollisions() calls, but at this point I don't need to investigate further.

 

Kind regards,

Ruud

 

On Mon, Jul 24, 2023 at 2:36 PM Mirko Barthauer <m.barthauer@xxxxxxxxxxx> wrote:

Hi Ruud,

 

as you have noticed yourself, it is currently not possible to query collisions using vehicle context subscription. Simulation::getCollisions() returns compound objects with more information for each collision (participants, respective types and speeds, location). See the Python TraCI reference for the correct order and compound size.

 

Best regards

Mirko

 

 

 

 

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

Betreff: [sumo-user] Get per-vehicle collision using TraCI?

Datum: 2023-07-24T11:07:44+0200

Von: "Ruud van Gaal via sumo-user" <sumo-user@xxxxxxxxxxx>

An: "Sumo project User discussions" <sumo-user@xxxxxxxxxxx>

 

 

 

Hi all,

 

I'm looking into detecting collisions for a specific (ego) vehicle using TraCI.

I found VAR_COLLIDING_VEHICLES_NUMBER and VAR_COLLIDING_VEHICLES_IDS, but those need to be fetched independently of a context subscription using the Simulation class. That could give me a lot of collision information I'm not interested in.

 

1. Can I get collision information using the vehicle context subscription method somehow? (I tried subscribing on VAR_COLLIDING_VEHICLES_NUMBER but that gives a not-supported error)

2. I also see Simulation::getCollisions(); is that a newer way of getting the collisions using getCollidingVehiclesIDList() and getCollidingVehiclesNumber()? What is the difference?

 

Thanks,

Ruud