VISSIM 5.30-05 User Manual

5 Base Data for Simulation
Parameter Meaning
next connector is considered.
COLLISION_TIME Minimum collision time gain (calculated with the
desired speed of the vehicle) which is required
for a change of the lateral position. The default
= 2 seconds can be set to a lower value if
vehicles should move laterally for smaller
advantages, too.
SPEED Minimum longitudinal speed [m/s] allowing
lateral movement. The default = 1 m/s can be
set to a lower value if vehicles should move
laterally even if they have almost come to a
standstill already.
● Overtake on same lane: Select all vehicles classes that are allowed to be
overtaken within the same lane by any vehicle of that class for which this
parameter set is assigned. You can define also on which side they are to
be overtaken (on left, on right or on both sides within the same lane).
● Min. Lateral Distance: Minimum distances for vehicles passing each
other within the same lane and for the lateral distance to vehicles in the
adjacent lane are defined for each vehicle class to be passed. The
distance is defined for standstill (at 0 km/h) as well as for 50 km/h. For
other speed values, the appropriate minimum distance value is gained by
linear interpolation. For those vehicle classes where no values are
defined, the default definition applies.
Example
Bikes and cars travel on the same one-lane-link. Bikes are to drive on the
right hand-side. Cars are allowed to overtake bikes on the left; bikes are
allowed to overtake cars on the right, and other bikes on the left.
This behavior is accomplished in VISSIM as follows:
1. Create a new parameter set “Urban lateral” as a copy based on “Urban”
behavior.
2. Edit parameters:
- [FOLLOWING] min. look ahead distance: from 0
to 30m
- [LATERAL] Overtake on same lane: Add new
line and select vehicle class “Bike” to be
overtaken on left.
3. Create a new parameter set “Urban cycle” as a copy based on “Cycle-
Track” behavior.
4. Edit parameters in [LATERAL] Overtake on same lane:
140 VISSIM 5.30-05 © PTV AG 2011