Demand

Figure 17 shows the supply side of the <Occupancy> namespace. Through the HierarchyElementReference class, the Supply data class are linked to an identifiable element within the Place hierarchy.

The Supply class defines the supply quantity as an integer, relevant for a defined period. If the SupplyValidityStart attribute is not set, the SupplyQuantity is considered to be relevant from the present time until the SupplyValidityEnd date/time. The SupplyViewType attribute enables identification of different perspectives of specifying supply: • spaceView - means that each space is physically marked and identifiable. • vehicleView - means that vehicle capacity in an area is estimated based on calculating a capacity (e.g. curb length divided by a length of vehicle, or the holding capacity of a specific parking area). The Distributing Party decides on the appropriate means to calculate the vehicleView (e.g. length of vehicle to use).

The Supply class can be linked to one-to-many identified Spaces whose characteristics can be defined through the SpaceDimension class.

Figure 18 – Demand class model