The special case you describe is a strategic lane change to follow the bus
route and as such is difficult to control. Simpla itself currently doesn't
control the strategic lane change, so that in some cases vehicles leave the
platoon. Playing around with lane change model settings
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#lane-changing_models>
may help in some cases and waypoints
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#waypoints>
can help in shifting lane change to a different location. Regarding the
other vehicles, again lane change model settings might help (perhaps
lcCooperative).
I take note that some simpla option to coordinate strategic lane change
more would be of help.
Best regards
Mirko
-----Original-Nachricht-----
Betreff: AW: [sumo-user] forbid overtaking for a certain vehicle type
Datum: 2022-08-19T16:23:14+0200
Von: "[email protected]" <[email protected]>
An: "[email protected]" <[email protected]>,
"[email protected]" <[email protected]>
Please find attached my simpla file and my routes file for the buses.
In the simulation, the buses 61H and E61H are driving the same route and
should platoon. One issue were the busstops, because the buses must be able
to stop at the same time so that the lead vehicle does not move too far
away from the follow vehicle. Thus, the bus stop for the lead vehicle is
always placed before the stop for the follow vehicle (see
final_stops1m.add.xml).
Now I have the issue, that the follow vehicle is faster than the leading
vehicle in some cases for some reason. Then it is overtaking what leads to
a wrong order of the buses when they are stopping at the bus stops. - Just
to give an example, around Simulation time 460 vehicle bus_E61H:0.0 is
overtaking vehicle bus_61H:0.0, what should be avoided.
To solve this, I was playing around with lcMode in the simpla.cfg file
(line 12, column 5). I thouht that changing the lane change mode ("
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.") will
probably help. I have tested different combinations, but the buses still
overtake each other.
Another, similar problem, is that other road users (cars) squeeze into the
platoon between the buses and thus hinder platooning. Is there a way to fix
both problems?
Thanks for help
-----Original-Nachricht-----
Betreff: Re: [sumo-user] forbid overtaking for a certain vehicle type
Datum: 2022-08-19T13:16:57+0200
Von: "[email protected]" <[email protected]>
An: "[email protected]" <[email protected]>
Can you tell us more about what you tried, what you expected and what you
got?
-----Original-Nachricht-----
Betreff: [sumo-user] forbid overtaking for a certain vehicle type
Datum: 2022-08-19T11:47:16+0200
Von: "[email protected]" <[email protected]>
An: "[email protected]" <[email protected]>
Dear all,
I have an issue in my network.
For testing the platooning of buses, it is necessery that the buses do not
change their position - i.e. do not overtake each other. If they are
overtaken by other vehicles or overtake other vehicles, this is not a
problem, only the buses must keep their position among themselves.
I was not able to implement this, I was testing things from here:
https://sumo.dlr.de/docs/TraCI/Change_Vehicle_State.html#lane_change_mode_0xb6,
<https://sumo.dlr.de/docs/TraCI/Change_Vehicle_State.html#lane_change_mode_0xb6>
but with no sucess.
Is there a possibility to give the buses a ban on overtaking for the
entire simulation? If possible please add an example.
Thank you for your help and best regards
simplaplatooner
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