| Re: [sumo-user] Cars crashing during traci calls despite tau being greater than timestep |
Hi all,
I'm currently running simulations in which the acceleration and lane
changing of a certain car is handled entirely through traci commands. It is
driving in a scenario with other cars, all of which are controlled directly
through sumo using Sumo car following models.
The three vytpes I have configured are as follows:
<vType accel="2.6" carFollowModel="IDM" decel="4.5" id="human"
impatience="0.0" laneChangeModel="LC2013" lcCooperative="1.0"
lcKeepRight="0" lcSpeedGain="1.5" lcStrategic="1.0" maxSpeed="30"
minGap="1.0" sigma="0.5" speedDev="0.1" speedFactor="1.0" tau="3.0"/>
<vType accel="2.6" carFollowModel="IDM" decel="4.5" id="aggressive-human"
impatience="0.0" maxSpeed="30" minGap="1.0" sigma="0.5" speedDev="0.0"
speedFactor="1.75" tau="0.2"/>
<vType accel="2.6" carFollowModel="IDM" decel="4.5" id="rl"
impatience="0.0" maxSpeed="30" minGap="1.0" sigma="0.5" speedDev="2"
speedFactor="1.0" tau="1.0"/>
where the id="rl" car is being controlled by traci. I'm seeing that car
rear end other vehicles despite setting the speed mode of all vehicles to
31.
Is there any situation in which setting a speed through traci wouldn't
trigger the failsafe? Or do you see any problems with the vehicle types
that could be the root of these crashes?
Thanks,
Kanaad Parvate
UC Berkeley EECS '19
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