VISSIM 5.30-05 User Manual

5 Base Data for Simulation
Other
Parameters
[m/s2 [m/s ] 2 ]
-3.50
-3.00
-2.00
-1.00
-0.25
‚lane changer‘ (Own)
Trailing vehicle
-1000m -500m Emerg. stop
● Waiting time before diffusion defines the maximum amount of time a
vehicle can wait at the emergency stop position waiting for a gap to
change lanes in order to stay on its route. When this time is reached the
vehicle is taken out of the network (diffusion) and a message will be
written to the error file denoting the time and location of the removal.
● Min. Headway (front/rear) defines the minimum distance to the vehicle in
front that must be available for a lane change in standstill condition.
● The value for To slower lane if collision time is used only if Lane Change
Behavior is set to Right Side Rule resp. Left Side Rule. It describes the
minimum time headway towards the next vehicle on the slow lane so that
a vehicle on the fast lane changes to the slower lane.
● Safety distance reduction factor: During lane changes the reduction
factor is regarded, which takes effect for
- the safety distance of the trailing vehicle in the new lane for the
decision whether to change lanes or not,
- the own safety distance during a lane change and
- the distance to the leading (slower) lane changing vehicle.
During any lane change, the resulting shorter safety distance is
calculated as follows: original safety distance x reduction factor. The
default factor of 0.6 reduces the safety distance by 40%. After the lane
change, the original safety distance is regarded again.
136 VISSIM 5.30-05 © PTV AG 2011