Transportation Information Center --> Traffic Management Center:
road network traffic situation data

Definitions

road network traffic situation data (Information Flow): Aggregated route usage, travel times, and other aggregated data collected from probe vehicles that can be used to estimate current traffic conditions.

Transportation Information Center (Source 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.

Traffic Management Center (Destination 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.

Communication Solutions

Solutions are sorted in ascending Gap Severity order. The Gap Severity is the parenthetical number at the end of the solution.

Selected Solution

EU: DATEX - DATEX Messaging

Solution Description

This solution is used within the E.U.. It combines standards associated with EU: DATEX with those for C-C: DATEX Messaging. The EU: DATEX standards include upper-layer standards required to exchange and share data and information in the field of traffic and travel. The C-C: DATEX Messaging standards include lower-layer standards that support partially secure communications between two centers as commonly used in Europe.

ITS Application Entity
Mind the gap
Click gap icons for more info.

Mgmt

Bundle: SNMPv3 MIB
W3C WSDL 1.1
Facilities

No Standard Needed
Security

IETF RFC 8446
TransNet

IP Alternatives
IETF RFC 9293
Access

Internet Subnet Alternatives
TransNet TransNet

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

Access Access

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

ITS Application ITS Application

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

Mgmt Mgmt

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

Facility Facility

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

Security Security

TempBCL2 TempSTDL2

TempBCL3 TempSTDL3

TempBCL4 TempSTDL4

TempBCL5 TempSTDL5

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

Characteristic Value
Time Context Recent
Spatial Context Regional
Acknowledgement True
Cardinality Unicast
Initiator Destination
Authenticable True
Encrypt True


Interoperability Description
Regional Interoperability throughout the geopolitical region is highly desirable, but if implemented differently in different transportation management jurisdictions, significant benefits will still accrue in each jurisdiction. Regardless, this Information Flow Triple should be implemented consistently within a transportation jurisdiction (i.e., the scope of a regional architecture).

Security

Information Flow Security
  Confidentiality Integrity Availability
Rating Moderate Moderate Moderate
Basis The data this is based on is not encrypted, but aggregated messages may have more privacy implications than individual ones. Should be limited effect if this data is incorrect or compromised, as there should be other mechanisms in place to validate it. This information is used as supplemental information. It should operate correctly if not every single message is received.


Security Characteristics Value
Authenticable True
Encrypt True