VISSIM 5.30-05 User Manual

Automobile Traffic
space is determined by attraction value. If two or more spaces have the
same attraction, the first space in direction of flow is assigned.
Finding a Suitable Space
A vehicle fits into one parking space if the space is more than 0.5m longer
than the vehicle. If the vehicle is longer, VISSIM checks if two or more
consecutive spaces are available to accomodate the vehicle. However,
partially occupied spaces will not be assigned to other vehicles (i.e. a vehicle
will always stop at the front of a parking space). If consecutive spaces are
not available, the long vehicle will not park and continue on its route.
Parking Behavior on Multi-lane Parking Lot Links
A vehicle decides to use a parking space only if either condition is met:
► The parking space is not occupied by a parking vehicle.
► The neighbouring parking space on the driver´s side is not occupied
either.
If the chosen parking space is still empty when crossing the decision cross
section, but will be occupied right before the car arrives, then the car selects
another parking space. Therefore, at least a single empty parking space is
required (on the route of the parking lot decision) in with-flow direction.
Entering and Leaving the Parking Space
VISSIM automatically creates routes from the routing decision to each
parking space of the associated parking lots. These routes cannot be edited
by the user. As soon as a vehicle is assigned to a parking space, it follows
on the corresponding route until standstill. The inside of the vehicle turns
white once it has reached its final park position. After the dwell time is over,
the vehicle leaves the parking space on an automatically created route that
leads back to its original route.
VISSIM looks for the shortest path in terms of time to get to a position
behind the parking lot routing decision. Both, the current position of the
vehicle as well as its entire initial route are taken into consideration.
Thus a vehicle may travel a portion of its route twice or skip a portion of its
original route.
6.4.5.2 Creating
This section refers to both roadside parking and Dynamic Assignment.
A parking lot is defined as follows:
1. Select the Parking Lots mode.
2. Select the desired link/connector.
3. Define the parking lot: Right click at the start position and drag the
mouse downstream to define the length.
User Manual © PTV AG 2011 237