1.1: Provide Traffic Surveillance

This page shows the collection of processes that make up the Provide Traffic Surveillance facility within the Manage Traffic function. These processes collect and store traffic data collected by sensors for use in traffic management, and by the media and other ITS functions. They are also responsible for using the data to generate a predictive model of network operation and for the exchange of data with Manage Traffic functions serving other areas. Data is collected about the passage of vehicles and pedestrians through the surface street and freeway network. The collected data is stored as either current data (five minutes old or less) or long term (historic) data. Collected data is used by the Provide Device Control facility to control vehicles and pedestrians. Traffic probe data (or floating car data) can be collected from vehicles or mobile devices and provided both for storage and for output. Environmental probe data can also be collected from vehicles and provided for output to other processes, and formatted for output to passing vehicles;
Collected data and incident data is exchanged with other traffic management centers.

There are 9 processes in this collection and three of them are collections themselves. The others are lower level Process Specifications (PSpecs) that are assigned to Physical Objects in the ARC-IT physical view.

1) Process Sensor Data (1.1.1)
2) Process and Store Traffic Data (1.1.2)
3) Generate Predictive Traffic Model (PSpec 1.1.3)
4) Display and Output Traffic Data (1.1.4)
5) Exchange Data with Other Traffic Centers (PSpec 1.1.5)
6) Collect Vehicle Traffic Probe Data (PSpec 1.1.6)
7) Collect Vehicle Environmental Data (PSpec 1.1.7)
8) Collect Identifier Data (PSpec 1.1.8)
9) Provide Safety Message Relay (PSpec 1.1.9)