Hi Hriday,
regarding your questions:
a: Distances are sums of euclidean distances of single net elements /
stretches between subsequent geometry points along the routes of the
vehicles.
b: They give the distance to the exit of the conflict area, which may be
the exit of the junction (or more upstream)
c: It is the right-of-way information like defined here
<https://sumo.dlr.de/docs/Networks/SUMO_Road_Networks.html#requests> in the
docs. True => yield
Best regards
Mirko
-----Original-Nachricht-----
Betreff: [sumo-user] Braking distance used for getJunctionFoes - explained
Datum: 2024-01-03T18:05:43+0100
Von: "Hriday Sanghvi via sumo-user" <[email protected]>
An: "Sumo project User discussions" <[email protected]>
Hello,
>From TraCI's vehicle domain, I am trying to make use of:
getJunctionFoes(self, vehID, dist=0.0)
Return list of junction foes [(foeId, egoDist, foeDist, egoExitDist,
foeExitDist, egoLane, foeLane, egoResponse, foeResponse), ...] within the
given distance to the given vehicle
1. For the dist parameter, I am calculating maximum braking distance for my
ego vehicle as:
square(current_speed) / (2 * max_deceleration_ability) so that ego vehicle
can decide to stop in time.
(from the v^2 - u^2 = 2aS formula, assuming constant maximum deceleration
and final velocity to be 0). Does that make sense?
2. Sample output that I got using this method:
(('flow_btt.0', 38.19626194106837, 31.700000000000003, 41.396261941068374,
34.900000000000006, ':intersection_2_0', ':intersection_1_0', True, False),
...)
>From that,
a. Just to confirm, are all the distances calculated using the Euclidean
distance formula?
b. I assume the egoExitDist and foeExitDist are the distance till the
"exit" of the junction?
c. What is egoResponse and foeRespone?
Thank you,
Sincerely,
Hriday
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