[sumo-user] Questions about lane change mode (0xb6) and speed mode (0xb3

["Tong, Kailin" <Kailin.Tong@xxxxxxx>]

Dear SUMO users,

 

In http://sumo.dlr.de/wiki/TraCI/Change_Vehicle_State#lane_change_mode_.280xb6.29

 

It says:

To disable all autonomous changing but still handle safety checks in the simulation, either one of the modes 256 (collision avoidance) or 512 (collision avoidance and safety-gap enforcement) may be used.

 

• When the mode is 512, how is the safety-gap of others calculated?

 

bit9, bit8:

·         00 = do not respect other drivers when following TraCI requests, adapt speed to fulfill request

·         01 = avoid immediate collisions when following a TraCI request, adapt speed to fulfill request

 

• What is adapt speed to fulfill request means here? What will happen if the speed is overwritten by traci.vehicle.setSpeed ?

 

 

In http://sumo.dlr.de/wiki/TraCI/Change_Vehicle_State#speed_mode_.280xb3.29

 

• If all checks of speed mode on, traci.vehicle.setSpeed sets a speed over the safe speed / maximum acceleration / maximum deceleration, which one has a higher priority?

 

 

Thank you in advance!

 

Best regards,

Kailin