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Re: [sumo-user] Arbitrary departure time for vehicles controlled via TraCI
You are correct. Sorry, for the invalid statement.
Further possible reasons for insertion delay:
- the second vehicle is configured to depart with high speed. It will delay insertion until a safe gap to the leader exists.
- the first vehicle is slowed or stopped for some reasons so it blocks the space for insertion of the second
- the first vehicle is quite long so it blocks the space for insertion of the second
- the vType definition is not used due to misconfiguration (check in sumo-gui the vType parameters of the vehicle for the expected minGap value)
If neither of these reasons is applicable, send me your scenario and I will take a look.

regards,
Jakob





2018-02-21 18:33 GMT+01:00 Jiachen Yang <jiachen_yang@xxxxxxxxxxxx>:

Hi Jacob,

From line 1202 in _vehicle.py, the add() method multiplies the input by 1000, so it seems that it receives input in seconds. If I use depart=1000, I observe that the car enters at 1000s in simulation time.

Thank you,
Jiachen



From: Jakob Erdmann <namdre.sumo@xxxxxxxxxxxxxx>
Sent: Monday, February 19, 2018 11:22 PM
To: Jiachen Yang; Sumo project User discussions
Subject: Re: [sumo-user] Arbitrary departure time for vehicles controlled via TraCI
 
Hello,
method traci.vehicle.add expects time in milliseconds.
regards,
Jakob

2018-02-17 0:14 GMT+01:00 Jiachen Yang via sumo-user <sumo-user@lists.sourceforge.net>:
Hi SUMO developers and users,


I'm trying to set arbitrary departure times for multiple vehicles that I'm controlling via TraCI. For example:


traci.vehicle.add( vehID='car_1', depart=2, ... )

traci.vehicle.add( vehID='car_2', depart=2.5, ... )


where car_1 and car_2 are on the same edge and lane. I observe that car_1 is able to depart at the correct time, but car_2 is delayed by more than 2.5 seconds. My guess is that there is some minimum distance requirement, which prevents car_2 from being emitted too closely after car_1. However, setting "minGap=0" in the vType definition does not help. Does anyone have suggestions?


Thank you,

Jiachen


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