This solution is used within Australia, the E.U. and the U.S.. It combines standards associated with TPEG2 with those for C–X: Wide Area Broadcast. The TPEG2 standards include upper–layer standards required to support multi–modal information services.. The C–X: Wide Area Broadcast standards include lower–layer standards that support one entity broadcasting information to all wireless devices over an area that covers at least a metropolitan area without any expectation of acknowledgement or response; security is provided by the upper–layers.
| Level | DocNum | FullName | Description |
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| Mgmt | | Proprietary | A proprietary mechanism to provide services for this layer. |
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| Mgmt | ISO 21219–6 | Intelligent transport systems – Traffic and travel information via transport protocol experts group, generation 2(TPEG2) –– Part 6: Message management container (TPEG2–MMC) | ISO 21219–6 adds a basic toolkit definition to the ISO 21219 series specifying the Message Management Container (MMC), which is used by all TPEG applications to provide information about the handling of messages on the TPEG client side. The MMC holds administrative information allowing a decoder to handle the message appropriately. This information is not aimed at the end user. The MMC is a toolkit and not a stand–alone application but is included in TPEG applications. |
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| Security | | Proprietary | A proprietary mechanism to provide services for this layer. |
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| Security | ISO 21219–24 | Intelligent transport systems – Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) –– Part 24: Light encryption (TPEG2–LTE) | ISO/TS 21219–24 defines the LTE encryption mechanism for TPEG Service Data Frames. It has been specifically designed for use with Business–to–Business (B2B) business models. The objective of this document is to provide a simple to use, yet effective Conditional Access mechanism for TPEG including encryption for use with both broadcast and/or point–to–point delivery. For both service providers and device manufacturers, a standardized conditional access mechanism is beneficial to avoid a proliferation of proprietary methods with multiplied implementation effort and lead times. |
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| ITS Application Entity | ISO 21219–15 | Intelligent transport systems –– Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) –– Part 15: Traffic event compact (TPEG2–TEC) | ISO/TS 21219–15 specifies the TPEG application: Traffic Event Compact. This application has been specifically designed to support information about traffic events (e.g. road works, traffic jams). A specific form of traffic events are local hazard warnings which, being safety–related messages, are sent with high priority to warn a driver that may encounter dangerous situations (e.g. black–ice, accident beyond curves, obstacles on road, etc.) unexpectedly. |
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| Facilities | No Standard Needed | No Standard Needed | The services related to this portion of the stack are not critical within the scope of this solution. |
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| TransNet | | Proprietary | A proprietary mechanism to provide services for this layer. |
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| Access | | Satellite Broadcast Alternatives | A set of alternative standards that includes all satellite–based wireless broadcast technologies. |
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One significant or possibly a couple minor issues. For existing deployments, the chosen solution likely has identified security or management issues not addressed by the communications solution. Deployers should consider additional security measures, such as communications link and physical security as part of these solutions. They should also review the management issues to see if they are relevant to their deployment and would require mitigation. For new deployments, the deployment efforts should consider a path to addressing these issues as a part of their design activities. The solution does not by itself provide a fully secure implementation without additional work.
| Issue | Severity | Description | Associated Standard | Associated Triple |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Community Traveler Information Services=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PPA Office=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | County EMA Centers=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PRT Offices=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Western Region Traffic Management Center (PennDOT)=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PTC Offices=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Regional Transit Agency Offices=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Regional Travel Information System=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | SPC CommuteInfo Ridesharing Program=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | BCTA Transit Management Center=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Cranberry Township Offices=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Trip Planning–Navigation–Traffic Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PIA Travel Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Regional Transit Traveler Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | 511PA Pittsburgh Traveler Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | Pittsburgh Traveler Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PRT Transit Traveler Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | MMVTA Transit Traveler Information=>broadcast traveler information=>Personal Traveler Information Devices |
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| Overlap of standards | Medium | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. | (None) | PTC Traffic Operations Center (PTC Ops Center)=>broadcast traveler information=>Personal Traveler Information Devices |
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| Secure data access not provided | Medium | The solution does not define rules on how the application entity authenticates requests to accept or provide data. | (None) | (All) |
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| Ubiquitous broadcast technology | Low | With the continual enhancement of broadcast technologies and a mixture of free and subscriber–based systems, it is difficult to identify any single technology that can be used to reliably reach the bulk of drivers in a timely manner. | (None) | (All) |
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| Source | Destination | Flow |
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| 511PA Pittsburgh Traveler Information | Personal Traveler Information Devices | broadcast traveler information |
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| BCTA Transit Management Center | Personal Traveler Information Devices | broadcast traveler information |
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| Community Traveler Information Services | Personal Traveler Information Devices | broadcast traveler information |
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| County EMA Centers | Personal Traveler Information Devices | broadcast traveler information |
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| Cranberry Township Offices | Personal Traveler Information Devices | broadcast traveler information |
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| MMVTA Transit Traveler Information | Personal Traveler Information Devices | broadcast traveler information |
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| PIA Travel Information | Personal Traveler Information Devices | broadcast traveler information |
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| Pittsburgh Traveler Information | Personal Traveler Information Devices | broadcast traveler information |
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| PPA Office | Personal Traveler Information Devices | broadcast traveler information |
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| PRT Offices | Personal Traveler Information Devices | broadcast traveler information |
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| PRT Transit Traveler Information | Personal Traveler Information Devices | broadcast traveler information |
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| PTC Offices | Personal Traveler Information Devices | broadcast traveler information |
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| PTC Traffic Operations Center (PTC Ops Center) | Personal Traveler Information Devices | broadcast traveler information |
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| Regional Transit Agency Offices | Personal Traveler Information Devices | broadcast traveler information |
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| Regional Transit Traveler Information | Personal Traveler Information Devices | broadcast traveler information |
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| Regional Travel Information System | Personal Traveler Information Devices | broadcast traveler information |
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| SPC CommuteInfo Ridesharing Program | Personal Traveler Information Devices | broadcast traveler information |
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| Trip Planning–Navigation–Traffic Information | Personal Traveler Information Devices | broadcast traveler information |
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| Western Region Traffic Management Center (PennDOT) | Personal Traveler Information Devices | broadcast traveler information |
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