variable_speed_limit_status

This data flow is used within the Manage Traffic function to report the status of a variable speed limit system, including automated or remotely controlled systems used to manage speed dynamically at the roadway. By monitoring this data flow, the receiving process can monitor the health and current status of field equipment. It consists of the following data items each of which is defined in its own DDE:

list_size
+ list_size
{station_id
+ device_identity
+ roadside_device_status}

Sub Data Flows

• device_identity
• list_size
• roadside_device_status
• station_id

Parent Data Flows

• m_and_c_to_traffic

Associated PSpecs/Terminators

• 9.3.3.1 - Collect Vehicle Speed
• 9.3.3.3 - Manage Vehicle Speed on Roadway
• 1.2.8 - Collect Traffic Field Equipment Fault Data

Parent Information Flows

• variable speed limit status