Overview

This Function shall be capable of providing the following facilities:

(1) The ability to collect traffic data from the inter-urban road network.
(2) The ability for sensors within this Function to provide the data as raw input and for the sensors to be capable of detecting the presence of all types of road vehicle, from bicycles to heavy freight vehicles.
(3) The ability to process the raw input data provided by the sensors to provide actual traffic flow data, e.g. flow, speed, etc.
(4) The ability to pass this processed data to other functionality for collation and use in traffic control.

Functional Requirements

(a) the presence of the trigger input data flow shall be continuously monitored
(b) the analogue data representing raw traffic flow data obtained in (a) shall be processed into digital data such as, but not limited to, flow, speed, occupancy, headway, vehicle classification, and queue
(c) the data for each point in the inter-urban road network at which it was produced shall be kept separate
(d) the trigger output data flows, shall be used to send the data in (c) to the inter-urban road network traffic control and data management Functions.

Diagrams

Parent Higher Level Function

• 3.1.2 Provide Inter-urban Traffic Management

Input logical dataflows

• ftrfc-inter-urban_traffic_flow_data

Output logical dataflows

• mt_collected_inter-urban_traffic_data
• mt_inter-urban_current_traffic_data_for_demand
• mt_inter-urban_traffic_data_for_incident_detection
• mt_inter-urban_traffic_flow_management_data

User needs