VISSIM 5.30-05 User Manual

6 The Traffic Network
1. For the use of static routes: Modeling roadside parking and pick-up/dropoff
lanes.
2. For Dynamic Assignment: Modeling origins and destinations of trips.
This section explains the functionality of roadside parking and the definition
of parking lots in general. The usage in combination with Dynamic Assignment
is described in section 12.3.1.
6.4.5.1 Roadside Parking Functionality
For modeling intermediate stops of a certain duration, parking lots of the type
Real parking spaces and routing decisions of the type Parking lot are
combined. These routing decisions work similar to partial routes. To a routing
decision of the type Parking lot, no routes are assigned, but any number of
parking lots. Also the dwell time distribution and the percentage of vehicles
that should park in one of the associated parking lots needs to be defined.
Parking Lot Placement
A parking lot is placed on a lane. If that lane does not continue downstream
of the parking lot, take care that the emergency stop position of the first
downstream connector does not include any part of the parking lot (for
details about the emergency stop position please refer to section 6.3.2.2).
The start of a parking lot needs to be placed well downstream of the
corresponding routing decision so that any vehicle can slow down safely to
reach the first parking space. Otherwise it might happen that no vehicle will
be assigned to the first parking space(s) or that vehicles will miss their
assigned space and block the traffic flow.
Parking Space Allocation
Parking space is allocated through a routing decision of the type Parking Lot.
It affects all vehicles of the assigned vehicle classes, also public transport
vehicles. The only exception are vehicles that already have a parking space
assigned.
For assignment of parking lots or parking spaces the following criteria are
relevant:
► Open hours
► Max. parking time
► Available space(s) (suitable for the vehicle length)
► Attractiveness
A parking space is only assigned, if the parking lot is open (Opening hours),
the vehicle dwell time (assigned by the routing decision) is less than the Max.
Parking Time and if a suitable space is available (see below). If any of these
criteria is not met, the vehicle continues on its route without parking.
If all the above criteria are met, the vehicle is assigned to the best parking
space available when crossing the corresponding routing decision. The best
236 VISSIM 5.30-05 © PTV AG 2011