Specifications
Car Park - Icon
Car Park - Icon
A car park is defined as an area whose entrances and exits are monitored using count sites
A car park has a defined capacity.
The occupancy of a car park is defined as the number of cars currently parked within the car park and is 
determined from the information obtained from the car parks count sites.
Depending upon the occupancy, the car park is determined to be in one of the following states during 
normal operation:
● Spaces
● Almost Full
● Full
During abnormal operation the car park can also be set to the following states:
● Closed (Set by an operator or timetable)
● Faulty (Set by the system when the car park detects that it has a faulty count site).
The status of the car park is passed to any 
zones to which the car park is assigned. These in turn provide 
the information for the control of the 
signs
During normal operation the car park states are set automatically in response to the current occupancy 
value of the car park and a set of preset occupancy thresholds being passed. The car park has the following 
definable change of state thresholds:-
● Almost Full Increasing
● Full Increasing 
● Full Decreasing
● Almost Full Decreasing 
The actual change will occur when the occupancy equals the designated value for increasing thresholds and 
equals the designated value for decreasing thresholds. Decreasing thresholds may also have a time delay 
of between 1 and 15 minutes programmed to prevent rapid changes between states. The system also 
allows an operator to lock the car park into one of the states using a 
manual override.
Selecting a car park's icon on the map displays the following window:
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