Hi,

Please, find below a description of a problem that find each time I run 
simulations.
It is related to the CACC car following model.


Problem description:
In SUMO simulations, I have a case where a car is stand still on a motorway 
with the purpose to provoke collisions.
Peculiarly, A huge number of collisions emerges for the CACC model, while I 
have no collisions for the ACC model within the exact same conditions.

I have a minimal number of parameters for the CACC or ACC model. I'm not using 
traci to initiate a TOR
There is also no difference whether the parameter "has.toc.device" is set to 
True or False for different simulations.
Do anyone knows why there is a huge difference?

Here, you find the number of collisions when using the CACC model for CAVs and 
CVs
mixes proportion
number of v/h
CAV
CV
Number of collisions (50 minutes)
1800
0%
15%
55
1800
25%
15%
246
1800
50%
15%
565


Here, you find the number of collisions when using the ACC model for CAVs and 
CVs, keeping everything the same except for the driver model
mixes proportion
number of v/h
CAV
CV
Number of collisions (50 minutes)
1800
0%
15%
0
1800
25%
15%
0
1800
50%
15%
0



More info:
OS: Linux ubuntu 4.15.0-74-generic #83~16.04.1-Ubuntu SMP Wed Dec 18 04:56:23 
UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
SUMO: Eclipse SUMO Version 1.2.0  Build features: Linux-4.4.0-146-generic 
x86_64 GNU 5.4.0 None Proj GUI GDAL GL2

In attachment are some input files
Thanks a lot for considering my problem.

Kind regards
Bart Ons
Transport & Mobility Leuven
TEL +32 16 95.71.55

Attachment: sumoConfig_automation_2_aggresion_1_trafficDemand_1_driverBehaviour_FSP_seed_0.cfg.xml.gz
Description: sumoConfig_automation_2_aggresion_1_trafficDemand_1_driverBehaviour_FSP_seed_0.cfg.xml.gz

<<attachment: vTypesCAVGA_FSP.add.tpl.xml.zip>>

<<attachment: vTypesCV_FSP.add.tpl.xml.zip>>

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