Hi Jakob,
thank you for your answer, but Im afraid, that I dont quite understand this attribute still. I might be wrong, but could it be, that the letters you used (A,B,C) are a bit mixed up? Did you mean it this way?
"Consider two vehicles A and B in the main flow with time gap T and a vehicle C that wants to merge/pass in between.
T consists of
- a) the time vehicle A take to travel its own length
- b) the time gap between the back of vehicle A and the front of vehicle
B
- c) the time for vehicle C to pass the intersection or merge which depends on the geometry of the intersection and the speed, acceleration and length of vehicle C
- d) the time gap between the back of vehicle C and the front of vehicle
B
The value of jmTimeGapMinor models b) and d).
The values of a) and c) are computed from context values such as junction geometry which has the effect that required gaps for turning left or passing across are
larger than those for turning right."
So if I understand right, there is no difference in Sumo, if a vehicle I being first or second in line to merge into the main flow? The Attribute
jmTimegapMinor would therefore be more comparable to Grenzzeitlücke than Folgezeitlücke (Sorry I cant find an appropriate Translation), right?
Thank you and Kind regards,
Florian
Von: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> im Auftrag von Jakob Erdmann <namdre.sumo@xxxxxxxxx>
Gesendet: Sonntag, 1. Juli 2018 20:41
An: Sumo project User discussions
Betreff: Re: [sumo-user] Appropriate values for jmTimegapMinor
Hello,
the values from the table refers to gross time gaps in the main flow that a vehicle would accept for merging.
Consider two vehicles A and B in the main flow with time gap T and a vehicle C that wants to merge/pass in between.
T consists of
- a) the time vehicle A take to travel its own length
- b) the time gap between the back of vehicle A and the front of vehicle C
- c) the time for vehicle C to pass the intersection or merge which depends on the geometry of the intersection and the speed, acceleration and length of vehicle C
- d) the time gap between the back of vehicle C and the front of vehicle A
The value of jmTimeGapMinor models b) and d).
The values of a) and b) are computed from context values such as junction geometry which has the effect that required gaps for turning left or passing across are larger than those for turning right.
I would assume that the default value of 1s is not too far off but I'm not aware of any calibration effort that went into that choice.
regards,
Jakob