This solution is used within the U.S.. It combines standards associated with US: TMDD with those for C–C: NTCIP Messaging. The US: TMDD standards include upper–layer standards required to implement center–to–center communications with traffic management systems. The C–C: NTCIP Messaging standards include lower–layer standards that support partially secure communications between two centers as commonly used in the US.
| Level | DocNum | FullName | Description |
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| Mgmt | IETF RFC 3411 | An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks | This standard (RFC) defines the basic architecture for SNMPv3 and includes the definition of information objects for managing the SNMP entity's architecture. |
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| Mgmt | IETF RFC 3412 | Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that assists in managing the message processing and dispatching subsystem of an SNMP entity. |
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| Mgmt | IETF RFC 3413 | Simple Network Management Protocol (SNMP) Applications | This standard (RFC) includes MIBs that allow for the configuration and management of remote Targets, Notifications, and Proxys. |
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| Mgmt | IETF RFC 3414 | User–based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) | This standard (RFC) contains a MIB that assists in configuring and managing the user–based security model. |
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| Mgmt | IETF RFC 3415 | View–based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that supports the configuration and management of the View–based access control model of SNMP. |
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| Mgmt | IETF RFC 3416 | Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the message structure and protocol operations used by SNMPv3. |
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| Mgmt | IETF RFC 3418 | Management Information Base (MIB) for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the MIB to configure and manage an SNMP entity. |
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| Mgmt | IETF RFC 4293 | Management Information Base for the Internet Protocol (IP) | This standard (RFC) defines the MIB that manages an IP entity. |
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| Mgmt | W3C WSDL 1.1 | Web Services Description Language (WSDL) 1.1 | This standard defines the mechanism for a system to describe the web services that it supports. |
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| Security | IETF RFC 5280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile | This standard (RFC) defines how to use X.509 certificates for secure communications over the Internet. |
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| Security | IETF RFC 8446 | The Transport Layer Security (TLS) Protocol | This standard (RFC) specifies Version 1.3 of the Transport Layer Security (TLS) protocol. The TLS protocol provides communications security over the Internet. The protocol allows client/server applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery. |
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| ITS Application Entity | ITE TMDD Vol 2 | Traffic Management Data Dictionary Standard for the Center–to–Center Communications: Volume 2: Design Content | This standard defines the messages and data elements for the external center to traffic management center interface. |
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| Facilities | ITE TMDD Vol 2 | Traffic Management Data Dictionary Standard for the Center–to–Center Communications: Volume 2: Design Content | This standard defines the messages and data elements for the external center to traffic management center interface. |
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| Facilities | IETF RFC 7230 | Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing | This standard (RFC) defines the main Application Layer protocol used for the world–wide web. |
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| Facilities | W3C SOAP 1.2 | SOAP Version 1.2 | This standard defines the structure that can be used to send message–based information between systems using XML. |
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| Facilities | W3C XML | Extensible Markup Language (XML) 1.0 (Fifth Edition) | This standard defines a generic markup language that can be used to share customizable information by using start and stop tags within the text. |
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| TransNet | IETF RFC 2460 | Internet Protocol, Version 6 (IPv6) Specification | This standard (RFC) specifies version 6 of the Internet Protocol (IPv6), also sometimes referred to as IP Next Generation or IPng. |
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| TransNet | IETF RFC 4291 | IP Version 6 Addressing Architecture | This standard (RFC) defines the addressing architecture of the IP Version 6 (IPv6) protocol. It includes the IPv6 addressing model, text representations of IPv6 addresses, definition of IPv6 unicast addresses, anycast addresses, and multicast addresses, and an IPv6 node's required addresses. |
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| TransNet | IETF RFC 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification | This standard (RFC) defines the control messages to manage IPv6. |
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| TransNet | IETF RFC 793 | Transmission Control Protocol | This standard (RFC) defines the main connection–oriented Transport Layer protocol used on Internet–based networks. |
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| Access | | Internet Subnet Alternatives | A set of alternative standards that includes any Subnet Layer method of connecting to the Internet. |
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Two significant or one significant and several minor issues. For existing deployments, the chosen solution is likely deficient in security or management capabilities and the issues should be reviewed and upgrades developed as needed. For new deployments, the solution may be viable for pilots when applied to the triples it supports; such pilot deployments should consider a path to addressing these issues as a part of their design activities. The solution does not provide sufficient interoperability, management, and security to enable proper, full–scale deployment without additional work.
| Issue | Severity | Description | Associated Standard | Associated Triple |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Ankeny Fire Stations=>emergency traffic control request=>Ankeny Traffic Management Center |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Polk County Emergency Operations Center=>incident information=>Des Moines Area Municipal and County Public Works Departments |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Ankeny Traffic Management Center=>emergency traffic control information=>Ankeny Fire Stations |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Dallas County Emergency Operations Center=>emergency traffic control request=>Iowa DOT Traffic Management Center (TMC) |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Dallas County Emergency Operations Center=>incident information=>Des Moines Area Municipal and County Public Works Departments |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Bondurant Public Works Facility=>emergency traffic control information=>Bondurant Emergency Services Facility |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Bondurant Emergency Services Facility=>emergency traffic control request=>Bondurant Public Works Facility |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Iowa DOT Traffic Management Center (TMC)=>emergency traffic control information=>Dallas County Emergency Operations Center |
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| Out of date (medium) | Medium | The standard includes normative references to other standards that have been subject to significant changes that can impact interoperability or security of systems and the industry has not specified if and how these updates should be implemented for deployments of this standard. | (None) | (All) |
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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 Suburbs Traffic Management Center=>incident information=>Western Suburbs City Traffic Management Centers |
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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) | Iowa DOT Traffic Management Center (TMC)=>incident information=>Dallas County Emergency Operations Center |
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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) | Windsor Heights Public Safety=>incident information for public=>Windsor Heights Public Safety Nixle |
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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) | Windsor Heights Public Safety=>incident information for public=>Westcom Dispatch Center Code Red |
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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) | Des Moines Police Department=>incident information=>DART Dart Way Maintenance Garage |
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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) | Des Moines Police Department=>incident information for public=>Des Moines Police CodeRed |
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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 Suburbs City Traffic Management Centers=>incident information=>Western Suburbs Traffic Management Center |
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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) | Des Moines Police Department=>incident information=>Des Moines Fire Department |
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| Performance not fully defined (medium) | Medium | The performance rules are not fully defined for this information flow. | (None) | (All) |
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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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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Iowa DOT Traffic Management Center (TMC)=>road network conditions=>Dallas County Emergency Operations Center |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Des Moines Police Department=>road network conditions=>Des Moines Fire Department |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Western Suburbs Traffic Management Center=>road network conditions=>Western Suburbs City Traffic Management Centers |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Western Suburbs Traffic Management Center=>device data=>Western Suburbs City Traffic Management Centers |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Western Suburbs City Traffic Management Centers=>road network conditions=>Western Suburbs Traffic Management Center |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Western Suburbs City Traffic Management Centers=>device data=>Western Suburbs Traffic Management Center |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Bondurant Public Works Facility=>road network conditions=>Bondurant Emergency Services Facility |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | Bondurant Public Works Facility=>road network conditions=>Polk County Sheriffs Office |
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| Inadequate guidance for complex data design | Low | The standard provides a robust design, but there may be more than one way to convey the information contained in this information flow and the standard provides little or no guidance on how to use the defined structures. | (None) | (All) |
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| Source | Destination | Flow |
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| Ankeny Fire Stations | Ankeny Traffic Management Center | emergency traffic control request |
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| Ankeny Traffic Management Center | Ankeny Fire Stations | emergency traffic control information |
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| Bondurant Emergency Services Facility | Bondurant Public Works Facility | emergency traffic control request |
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| Bondurant Emergency Services Facility | Bondurant Public Works Facility | remote surveillance control |
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| Bondurant Public Works Facility | Bondurant Emergency Services Facility | emergency traffic control information |
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| Bondurant Public Works Facility | Bondurant Emergency Services Facility | road network conditions |
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| Bondurant Public Works Facility | Bondurant Emergency Services Facility | traffic image meta data |
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| Bondurant Public Works Facility | Polk County Sheriffs Office | road network conditions |
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| Bondurant Public Works Facility | Polk County Sheriffs Office | traffic image meta data |
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| Dallas County Emergency Operations Center | Alert Iowa Statewide Messaging System | incident information for public |
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| Dallas County Emergency Operations Center | DART Dart Way Maintenance Garage | incident information |
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| Dallas County Emergency Operations Center | Des Moines Area Municipal and County Public Works Departments | incident information |
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| Dallas County Emergency Operations Center | HIRTA | incident information |
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| Dallas County Emergency Operations Center | Iowa DOT Traffic Management Center (TMC) | emergency traffic control request |
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| Dallas County Emergency Operations Center | Iowa DOT Traffic Management Center (TMC) | incident information |
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| Des Moines Area Municipal and County Public Works Departments | Dallas County Emergency Operations Center | incident information |
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| Des Moines Fire Department | DART Dart Way Maintenance Garage | incident information |
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| Des Moines Fire Department | Des Moines Police Department | remote surveillance control |
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| Des Moines Police Department | DART Dart Way Maintenance Garage | incident information |
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| Des Moines Police Department | Des Moines Fire Department | incident information |
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| Des Moines Police Department | Des Moines Fire Department | road network conditions |
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| Des Moines Police Department | Des Moines Fire Department | traffic image meta data |
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| Des Moines Police Department | Des Moines Police CodeRed | incident information for public |
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| Iowa DOT Maintenance Bureau | Iowa DOT Maintenance Bureau WeatherView | environmental conditions data |
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| Iowa DOT Maintenance Bureau | Iteris MetAlerts | road weather information |
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| Iowa DOT Maintenance Bureau WeatherView | Bondurant Public Works Facility | transportation weather information |
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| Iowa DOT Traffic Management Center (TMC) | Dallas County Emergency Operations Center | emergency traffic control information |
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| Iowa DOT Traffic Management Center (TMC) | Dallas County Emergency Operations Center | incident information |
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| Iowa DOT Traffic Management Center (TMC) | Dallas County Emergency Operations Center | road network conditions |
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| Iteris MetAlerts | Iowa DOT Maintenance Bureau | transportation weather information |
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| Iteris MetAlerts | West Des Moines Public Services | transportation weather information |
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| Norwalk Public Safety Building | Norwalk GovDelivery | incident information for public |
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| Norwalk Public Safety Building | Westcom Dispatch Center Code Red | incident information for public |
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| Polk County Emergency Operations Center | DART Dart Way Maintenance Garage | incident information |
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| Polk County Emergency Operations Center | Des Moines Area Municipal and County Public Works Departments | incident information |
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| Polk County Sheriffs Office | Bondurant Public Works Facility | remote surveillance control |
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| Urbandale Police Department | Westcom Dispatch Center Code Red | incident information for public |
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| Waukee Public Safety Building | Westcom Dispatch Center Code Red | incident information for public |
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| West Des Moines Public Services | Iteris MetAlerts | road weather information |
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| Westcom Dispatch Center Code Red | Norwalk GovDelivery | emergency traveler information |
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| Westcom Dispatch Center Code Red | Waukee Police Nixle | emergency traveler information |
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| Westcom Dispatch Center Code Red | Windsor Heights Public Safety Nixle | emergency traveler information |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | device control request |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | device data |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | device status |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | incident information |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | road network conditions |
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| Western Suburbs City Traffic Management Centers | Western Suburbs Traffic Management Center | traffic image meta data |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | device control request |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | device data |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | device status |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | incident information |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | road network conditions |
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| Western Suburbs Traffic Management Center | Western Suburbs City Traffic Management Centers | traffic image meta data |
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| Windsor Heights Public Safety | Westcom Dispatch Center Code Red | incident information for public |
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| Windsor Heights Public Safety | Windsor Heights Public Safety Nixle | incident information for public |
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| Windsor Heights Public Safety Nixle | Westcom Dispatch Center Code Red | emergency traveler information |
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