This Function shall be capable of providing the following facilities:<br/><br/>(1) The ability to provide outputs that can only provide commands to Drivers using the inter-urban road network.<br/>(2) The ability for these outputs to include regular speed and lane use commands and to supplement the outputs provided by other functionality.<br/>(3) The ability to use several different technologies to provide the outputs but not through any in-vehicle technology as this will be provided separately.<br/>(4) The ability to monitor all of the outputs and revisions to any already being output that are likely to give rise to inconsistent and incoherent messages being displayed to Drivers.<br/>
(a) continuously monitor for the arrival of the inter-urban speed l&s commands, inter-urban lane l&s commands, inter-urban speed display error, inter-urban incident warning l&s commands, inter-urban l&s display error and inter-urban speed being exceeded data flows;<br/>(b) when either the inter-urban speed l&s commands or inter-urban lane l&s commands data flows in (a) is received, output its contents to drivers in the inter-urban traffic l&s commands data flow;<br/>(c) also send the inter-urban l&s device status data flow to the Detect Inter-urban Traffic Violations function;<br/>(d) if the inter-urban speed being exceeded data flow is received in (a), output its contents (including the vehicle identity) to the driver in the vehicle above required inter-urban speeds data flow;<br/>(e) if for any reason the actions in (b) or (d) fail then send a device failed indication in the inter-urban device status data flow to the Detect Inter-urban Traffic Violations function and the inter-urban traffic management l&s response data flow to the Implement Inter-urban Traffic Commands function;<br/>(f) the contents of the outputs in (b) shall be monitored and revisions provided to any that would generate inconsistent or incoherent messages being displayed to drivers;<br/>(g) if either the inter-urban l&s display error or inter-urban speed display error data flows are received, check their contents to see if a difference has been found;<br/>(h) if a difference is found (f) then again send a device failed indication in the inter-urban device status data flow to the Detect Inter-urban Traffic Violations function and the inter-urban traffic management l&s response data flow to the Evaluate Need for Equipment Maintenance function.<br/>