The following Functional Areas are associated with the "Toll Road Transportation Management Centers" element.   Each functional area includes a brief description and a bulleted list of detailed functions.   The common icon provides a link to other systems in the region that include the same functional area.

 

TMC Freeway Management (User Defined)

Remotely controls lane control signals or ramp meters on freeways. The ramp meter control may be based on upstream and downstream traffic flow and ramp queue length algorithms.

• The center shall remotely control systems to manage use of the freeways, including ramp meters, mainline metering/lane controls.
• The center shall collect operational status from ramp meters, mainline metering/lane controls and compare against the control information sent by the center.
• The center shall collect fault data from ramp meters, mainline metering/lane controls.
• The center shall implement control strategies, under control of center personnel, on some or all of the freeway network devices (e.g. ramp meters, mainline metering/lane controls), based on data from sensors monitoring traffic conditions upstream, downstream, and queue data on the ramps themselves.

TMC Regional Traffic Control

Coordination between traffic management centers in order to share traffic information between centers as well as control of traffic management field equipment. This may be used during incidents and special events and during day-to-day operations.

• The center shall exchange traffic information with other traffic management centers, includes incident information, congestion data, traffic data, signal timing plans, and real-time signal control information.
• The center shall exchange traffic control information with other traffic management centers, includes remote monitoring and control of traffic management devices (e.g. signs, sensors, signals, cameras, etc.).