Attributes of parking lots

The Parking Lot window opens when you insert a network object and have selected to automatically open the Edit dialog after object creation (Right-click behavior and action after creating an object). By default, only the Parking Lots list is opened.

Into the window, you enter attribute values for the network object. For network objects which have already been defined, you can call the window using the following functions:

In the list of network objects of the network object type, double-click the row with the desired network object.
In the Network editor, select the network object of your choice. Then, from its shortcut menu, choose Edit.

The network object may have additional attributes. In the network objects list of the network object type, you can show all attributes and attribute values. You can open the list via the following functions:

In the network object toolbar, right-click the desired network object type. Then from the shortcut menu, choose Show List (Context menu in the network object toolbar).
In the Network editor, select the network object of your choice. Then, from its shortcut menu, choose Show In List (Selecting network objects in the Network editor and showing them in a list).
From the Lists menu, in the desired category, choose the network object type.

In the network objects list of the network object type, you can edit attributes and attribute values of a network object (Selecting cells in lists), (Using lists).

The objects of this object type may have relations to other objects. This is why the attributes list is shown as part of a coupled list (on the left). On the Lists toolbar, in the Relations box, you can show and edit the coupled list with the attributes of the desired relation on the right (see below Showing and editing dependent objects as relation) and (Using coupled lists).

Note: In lists, you can use the Attribute selection icon to show and hide attribute values (Selecting attributes and subattributes for columns of a list).

Basic attributes of parking lots

The basic attributes of the network element are shown in the upper area of the window and in the list of network objects for the particular network object type.

1. Make the desired changes:

Element	Description
No.	Unique number
Name	Designation
At	Position (Pos): Distance from start of the link or connector
Length	Length of the parking lot
Type	Zone Connector: only relevant for dynamic assignment (Modeling parking lots and zones). Automatically creates a zone in the Zones list, if no zone has been defined. In the OD Pairs list, automatically creates an origin zone and a destination zone, if neither have been defined yet. Abstract parking lot: only relevant for dynamic assignment Real parking spaces relevant for simulation with and without dynamic assignment: modeling parking capacity in movement direction on one lane. Combined with vehicle routes of the type Parking Lot, you can realistically model parking maneuvers and stops at the roadside.
Showing label	If the option is not selected, the label for the parking lot is not displayed, even if you selected labeling for all parking lots. For parking lot labels, the following are available: Number Name Zone No. Group No. Occupancy Current parking availability

Dyn. Assignment tab

These attributes are only relevant for parking lots of dynamic assignment (Defining parking lots for dynamic assignment).

Parking Spaces tab

These attributes are only relevant for Real parking spaces.

Element	Short name	Description
Link - lane		Number of the link and lane (Ln) on which the parking lot is located
Length per space	LenPerSpc	Length of a parking space The maximum length per space must not exceed the length of the parking lot. If the total length is not a multiple of the parking lot length, the remaining length is added to the end of the parking lot, but is not used by any vehicle.
Blocking time distribution	BlockTmDistr	Optional blocking time distribution: period during which a parallel-parking vehicle blocks the lane until it has completed its parking maneuver. 0: None: Blocking time is not considered for simulation.
Parking direction	ParkDir	Only for real parking spaces: Direction in which the vehicle is driving into and out of the parking space.
Minimum gap time major flow	MinGapTmMajFl	Minimum gap time between two vehicles of the major flow, so that a vehicle may leave the parking space
Speed (reversing)	SpeedRvs	Desired speed of the vehicle for backing out of a parking space. Default value 5 km/h, value range 0.001 to 9999 km/h.
Direction change duration distribution	DirChgDurDist	Only relevant if the attribute parking direction Forward > reverse is selected: period during which the vehicle remains in standstill after it has pulled out of parking space in reverse until it drives forwards. Default: time distribution 5 s (Using time distributions). If no value is specified, the vehicle remains in standstill for the duration of a time step.

The blocking time begins when the parking vehicle first stops while heading into a parking space with the rear of the vehicle sticking out of the parking space, and it ends when the vehicle finally comes to a stop in the parallel-parked position.

Blocking time distribution is considered for parking lots on the adjacent lane and thus includes parking maneuvers in parallel to the direction of travel.
The parking lot must be longer than one length per parking space.
The time distribution may be a normal or an empirical distribution (Defining time distributions).
If the parking lot is precisely as long as the parking space, the vehicle remains in parking position during the blocking time. In this case, blocking time distribution is ignored.

Sel. parameters tab

Element	Description
Open hours	From (OpenFrom), to (OpenUntil): Time span during which vehicles can enter the parking lot. Vehicles will not drive to the parking lot outside these hours.
Maximum parking time	ParkTmMax: for Real parking spaces: Vehicles with a longer parking time are not assigned a parking space on this parking lot. for Zone connector and Abstract parking lot: Only relevant when using a trip chain file: time span a vehicle may use this parking lot. If the maximum parking time is shorter than the minimum dwell time, the parking lot is not approached by the vehicle. Vehicles that are assigned a route via a COM interface and vehicles moving based on an origin-destination matrix during dynamic assignment may select any destination parking lot open at the time of their departure, regardless of the attribute value Maximum parking time:. For these vehicles, for selection of a destination parking lot, a parking time of 1 s is assumed.
Attraction	Attrac: The higher the value, the more attractive the parking lot or parking space. This allows you to account for features of the parking lot that are not explicitly available as an attribute. For Real parking spaces, you can create a linear change in the attractiveness across the parking spaces by entering different values for First and Last. To define a parking lot with attractive parking spaces in the middle of or at the edge of the parking lot, add two symmetrical parking spaces of the type Real parking spaces, with mirror-inverted values for Attraction.
Parking Cost	ParkFee: only relevant for Zone Connector and Abstract parking lot: flat: fee for one-time use of the parking lot, irrespective of the dwell time. per hour: parking costs depending on the parking time. If a trip chain file is used, the minimum dwell time is considered. Without a trip chain file, an hour parking time is assumed for all parking.

The network object has additional attributes that you can show in the Attributes list. Among them are the following for example:

Short name	Long name	Description
DetBlock	Detect blockage	For real parking spaces only: Select this option, if you want Vissim to check whether a parking space is blocked during the simulation. Vissim detects a vehicle blocking a parking space, without parking in it, e.g. when the vehicle parks in a space further upstream that lies on the same single lane link. The blocked parking space cannot be assigned to a vehicle traversing the parking routing decision. If this option is not selected, Vissim will not check whether a parking space is blocked during the simulation. Vissim does then not recognize vehicles blocking a parking space, unless they are parking in it. The blocked parking space can be assigned to a vehicle traversing the parking routing decision. This results in fewer vehicles ignoring the routing decision due to a lack of available parking spaces. The option is selected by default.
Zone	Zone	Allocation of the zone number in the OD matrix to the parking lot. Multiple parking lots can belong to a zone.

Long name

DetBlock

Detect blockage

For real parking spaces only:

Select this option, if you want Vissim to check whether a parking space is blocked during the simulation. Vissim detects a vehicle blocking a parking space, without parking in it, e.g. when the vehicle parks in a space further upstream that lies on the same single lane link. The blocked parking space cannot be assigned to a vehicle traversing the parking routing decision.
If this option is not selected, Vissim will not check whether a parking space is blocked during the simulation. Vissim does then not recognize vehicles blocking a parking space, unless they are parking in it. The blocked parking space can be assigned to a vehicle traversing the parking routing decision. This results in fewer vehicles ignoring the routing decision due to a lack of available parking spaces.

The option is selected by default.

Zone

Allocation of the zone number in the OD matrix to the parking lot. Multiple parking lots can belong to a zone.

Showing and editing dependent objects as relation

The attribute and attribute values of this network object type are shown in the list on the left, which consists of two coupled lists.

1. In the list on the left, click the desired entry.

The list on the right contains attributes and attribute values of network objects, and/or base data allocated to the network object selected in the list on the left (Using coupled lists):

Dyn assign des speed distributions (Defining parking lots for dynamic assignment)
Vehicles (parking): Attributes of the vehicles that are currently parked in the parking lot
Paths: Paths of path file from dynamic assignment If no paths are shown and you have performed dynamic assignment, you can use its path file to read in the paths. To do so, from the List shortcut menu, choose the respective command (Attributes of paths).

2. On the list toolbar, in the Relations list, click the desired entry.

3. Enter the desired data.

The data is allocated.

Superordinate topic:

Modeling parking lots

Information on editing:

Defining parking lots