This Function shall be capable of providing the following facilities:<br/><br/>(1) The ability to determine the probability of a collision between the Host Vehicle (i.e. the Vehicle in which it is operating) and another Vehicle.<br/>(2) The ability to use data about the location of Other Vehicles in the vicinity of the Host Vehicle and the predicted immediate forward trajectory of the Host Vehicle to determine if there is a high possibility of collisions taking place between them.<br/>(3) If a high possibility exists, the ability to send a warning to the Driver, Other Vehicles and to the Incident Management functionality suggesting the possibility of an accident.<br/>(4) The ability to perform this determination every time that the trajectory of the Host Vehicle or the position of Other Vehicles changes.<br/>
(a) continuously monitor for receipt for either of the input data flows;<br/>b) when either of the input data flows is received in (a), determine the probability of a collision between the Host Vehicle and Other Vehicles and/or Other Road Users nearby;<br/>(c) if the result of (b) is that a collision is probable then determine the corrective action that needs to be taken by the Driver of the Host Vehicle;<br/>(d) send the result of (c) together with a warning about a probably collision to the Provide Vehicle Trajectory Information to Driver function in the vehicle collision warning data flow;<br/>(e) if the result of (b) is that no collision will take place, send the location of other vehicles and road users nearby to the Provide Vehicle Trajectory Information to Driver function in the nearby vehicles and road user information data flow;<br/>(f) when the host vehicle is approaching a junction from a side road, the output data flow in (e) shall include advice on how and when the driver should move the vehicle into the main road;<br/>(g) whatever the result of (b), always send a message to the Output Commands & Information to Urban Roads function in the possible conflicts with vehicle movement data flow;<br/>(h) it shall be possible for several of the outputs identified in (d), (e) and (f) to be repeated as the vehicle moves through the same junction, or a succession of junctions in the road network and its situation changes relative to other vehicles, other road users, pedestrians and Vulnerable Road Users (VRU's).<br/>