Traffic Management Center --> Transportation Information Center:
intersection status

Definitions

intersection status (Information Flow): Current signal phase and timing information for all lanes at a signalized intersection. This flow identifies active lanes and lanes that are being stopped and specifies the length of time that the current state will persist for each lane. It also identifies signal priority and preemption status and pedestrian crossing status information where applicable.

Traffic Management Center (Source Physical Object): The 'Traffic Management Center' monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. It communicates with ITS Roadway Equipment and Connected Vehicle Roadside Equipment (RSE) to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. It manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters.

Transportation Information Center (Destination Physical Object): The 'Transportation Information Center' collects, processes, stores, and disseminates transportation information to system operators and the traveling public. The physical object can play several different roles in an integrated ITS. In one role, the TIC provides a data collection, fusing, and repackaging function, collecting information from transportation system operators and redistributing this information to other system operators in the region and other TICs. In this information redistribution role, the TIC provides a bridge between the various transportation systems that produce the information and the other TICs and their subscribers that use the information. The second role of a TIC is focused on delivery of traveler information to subscribers and the public at large. Information provided includes basic advisories, traffic and road conditions, transit schedule information, yellow pages information, ride matching information, and parking information. The TIC is commonly implemented as a website or a web-based application service, but it represents any traveler information distribution service.

Included In

This Triple is in the following Service Packages:

• CVO06: Freight Signal Priority
• MC11: Maintenance and Construction Signal Priority
• PS03: Emergency Vehicle Preemption
• PT09: Transit Signal Priority
• ST08: Eco-Approach and Departure at Signalized Intersections
• TM04: Connected Vehicle Traffic Signal System
• VS12: Vulnerable Road User Safety
• VS13: Intersection Safety Warning and Collision Avoidance
• VS15: Infrastructure Enhanced Cooperative Adaptive Cruise Control

This triple is associated with the following Functional Objects:

• TIC Traffic Control Dissemination
• TMC Intersection Safety
• TMC Signal Control

This Triple is described by the following Functional View Data Flows:

• signal_phase_indication_to_centers
• signal_phase_timing_to_centers

This Triple has the following triple relationships:

Communication Solutions

• US: SAE Other J2735 - Secure Internet (ITS) (17)
• (None-Data) - Secure Internet (ITS) (32)

Selected Solution

US: SAE Other J2735 - Secure Internet (ITS)

Solution Description

ITS Application Entity SAE J2735			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities SAE J2735	Security Secure Session Alternatives
	TransNet IP Alternatives Internet Transport Alternatives
	Access Internet Subnet Alternatives

Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.

Characteristics

Security