This Function shall be capable of providing the following facilities:<br/><br/>(1) The ability to detect that a Vehicle is in a car park space.<br/>(2) The ability to collect this data as raw input by sensors that are capable of detecting the presence of a Vehicle and determining its type, e.g. car, bicycle, Heavy Goods Vehicle (HGV), Public Transport Vehicle. <br/>(3) The ability to send the data about the detected Vehicle to the functionality that calculates the car park spaces occupancies to that it can be determined if a vehicle has exceeded the time it is allowed to occupy a particular space.<br/>
(a) the presence of the trigger input data flow shall be continuously monitored;<br/>(b) the analogue data representing the presence of a vehicle in each car park space obtained in (a) shall be converted into digital data from which the vehicle identity can be determined, of necessary only to the extent that one vehicle can be distinguished from another;<br/>(c) the trigger output data flows shall be used to send the data in (b) to the Calculate Occupancy of Individual Car Park Spaces function.<br/>
