Overview

This Function shall be capable of providing the following facilities:

(1) The ability to provide management of the lanes on roads in the inter-urban network.
(2) The ability to enable the management of the lanes so that the most efficient use can be made of the available road space in the inter-urban road network.#
(3) The ability for the use of lanes to be changed in a way that is safe for vehicle operation and that causes the minimum disruption to all forms of inter-urban road traffic.
(4) The ability to support the output of lane management commands that can ban the use of one or several lanes in some or the entire road network, for all or specific types of vehicles, provide keep-in-lane advice to stabilise traffic flow for all or specific types of vehicles and where available, make the auxiliary lane (sometimes called the hard shoulder) available for use.
(5) The ability to support the output of lane management commands that can provide keep-in-lane advice to stabilise traffic flow for all or specific types of vehicles.
(6) The ability to support the output of lane management commands that can, where available, make the auxiliary lane (sometimes called the "hard shoulder") available for use.
(7) The ability to send commands to alter the use of lanes to the functionality that is responsible for the output of messages to Drivers, both at the roadside and in the Vehicle.

Functional Requirements

(a) when either the first or second trigger input data flows is received, the commands shall be produced to change the use of the lanes as requested
(b) the commands in (a) shall make the change of lane use in an orderly way such that the safety of vehicle and travellers is not reduced or compromised
(c) the commands in (a) and (b) shall be sent to the inter-urban output actuation Function using the first trigger output data flow
(d) implementation of the second trigger input data flow in (b) and (c) shall take priority over the first trigger input data flow
(e) the new use of the lanes implemented in (c) shall also be sent to the Detect Urban Violation function using the second trigger output data flow.
(f) keep-in-lane advice is triggered by operator or automatically at critical traffic levels
(g) the operator is asked to check and confirm that whole auxiliary lane is non-occupied before making it available
(h) details of changes in lane use shall be sent to other functionality so that it can be access by the Broadcaster and sent to other Areas of the System.

Diagrams

Parent Higher Level Function

• 3.1.2.13 Manage Inter-urban Traffic Strategies

Input logical dataflows

• mt_inter-urban_lane_management_requests
• mt_inter-urban_operator_lane_override
• mt_operator_inter-urban_auxlane_check_response

Output logical dataflows

• mt.pshvs_inter-urban_lane_commands
• mt.pshvs_inter-urban_lane_use_information
• mt_inter-urban_lane_instructions
• mt_inter-urban_lane_l&s_commands
• mt_inter-urban_lane_status
• mt_operator_inter-urban_auxlane_check_request

User needs