OKI Regional ITS Architecture

US: NTCIP Transportation Sensors - SNMPv3/TLS

Description

This solution is used within the U.S.. It combines standards associated with US: NTCIP Transportation Sensors with those for I–F: SNMPv3/TLS. The US: NTCIP Transportation Sensors standards include upper–layer standards required to implement center–to–field transportation sensors (e.g., vehicle detectors) communications (e.g., real–time). The I–F: SNMPv3/TLS standards include lower–layer standards that support secure center–to–field and field–to–field communications using simple network management protocol (SNMPv3); implementations are strongly encouraged to use the TLS for SNMP security option for this solution to ensure adequate security.

Includes Standards

Level	DocNum	FullName	Description
Mgmt	NTCIP 1201	NTCIP Global Object (GO) Definitions	This standard defines SNMP objects (data elements) used by a wide range of field devices like time and versioning information.
Security	IETF RFC 6353	Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)	This standard (RFC) defines how to use the TLS authentication service to provide authentication within the access control mechanism of SNMP.
ITS Application Entity	NTCIP 1209	NTCIP Object Definitions for Transportation Sensor Systems (TSS)	This standard defines SNMP objects (data elements) to monitor and control transportation system sensors that measure real–time vehicular traffic information.
Facilities	NTCIP 1209	NTCIP Object Definitions for Transportation Sensor Systems (TSS)	This standard defines SNMP objects (data elements) to monitor and control transportation system sensors that measure real–time vehicular traffic information.

Readiness: High–Moderate

Readiness Description

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.

Issues

Issue	Severity	Description	Associated Standard	Associated Triple
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>City and County Field Equipment
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>Hamilton County Field Equipment
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>Cincinnati Field Equipment
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	INDOT Connected Vehicle RSE=>traffic situation data=>INDOT Traffic Signal Roadway Equipment
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	ODOT / KYTC Connected Vehicle Roadside Equipment=>traffic situation data=>KYTC Traffic Signal Roadway Equipment
Data not fully defined (medium)	Medium	Some of the data elements for this information flow are not fully defined.	(None)	ODOT / KYTC Connected Vehicle Roadside Equipment=>traffic situation data=>ODOT Traffic Signal Roadway Equipment
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.	IETF RFC 6353 TLS for SNMP	(All)
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>City and County Field Equipment
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>Hamilton County Field Equipment
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	City and County Connected Vehicle Roadside Equipment=>traffic situation data=>Cincinnati Field Equipment
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	INDOT Connected Vehicle RSE=>traffic situation data=>INDOT Traffic Signal Roadway Equipment
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	ODOT / KYTC Connected Vehicle Roadside Equipment=>traffic situation data=>KYTC Traffic Signal Roadway Equipment
Use case not considered in design (medium)	Medium	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	ODOT / KYTC Connected Vehicle Roadside Equipment=>traffic situation data=>ODOT Traffic Signal Roadway Equipment
Update data to SNMPv3	Low	Data has been defined for SNMPv1, but needs to be updated to SNMPv3 format.	(None)	(All)
Use TLS for SNMP Option	Low	The standard allows for multiple security mechanisms. The only defined mechanism that meets the requirements for C–ITS is the one based on TLS.	(None)	(All)

Supports Interfaces

Source	Destination	Flow
Cincinnati Field Equipment	Cincinnati Traffic Control Center	traffic detector data
Cincinnati Field Equipment	City and County Field Equipment	traffic detector coordination
Cincinnati Field Equipment	ODOT ATMS	traffic detector data
Cincinnati Traffic Control Center	Cincinnati Field Equipment	traffic detector control
City and County Cameras	City and County Traffic Control Center	traffic detector data
City and County Cameras	KYTC District 6 Planning	traffic detector data
City and County Cameras	ODOT ATMS	traffic detector data
City and County Cameras	TRIMARC (KYTC)	traffic detector data
City and County Connected Vehicle Roadside Equipment	Cincinnati Field Equipment	traffic situation data
City and County Connected Vehicle Roadside Equipment	City and County Field Equipment	traffic situation data
City and County Connected Vehicle Roadside Equipment	Hamilton County Field Equipment	traffic situation data
City and County Field Equipment	City and County Traffic Control Center	traffic detector data
City and County Field Equipment	Other City and County Traffic Control Centers	traffic detector data
City and County Traffic Control Center	City and County Cameras	traffic detector control
City and County Traffic Control Center	City and County Field Equipment	traffic detector control
Hamilton County Field Equipment	Hamilton County Signal Operations	traffic detector data
Hamilton County Signal Operations	Hamilton County Field Equipment	traffic detector control
INDOT Cameras	INDOT Traffic Operations Center	traffic detector data
INDOT Connected Vehicle RSE	INDOT Traffic Signal Roadway Equipment	traffic situation data
INDOT Field Equipment	INDOT Traffic Operations Center	traffic detector data
INDOT Ramp Meters	INDOT Traffic Operations Center	traffic detector data
INDOT Speed Monitoring Roadside Equipment	INDOT Dynamic Message Signs	traffic detector coordination
INDOT Speed Monitoring Roadside Equipment	INDOT Traffic Operations Center	traffic detector data
INDOT Speed Monitoring Roadside Equipment	INDOT Variable Speed Limit Signs	traffic detector coordination
INDOT Traffic Operations Center	INDOT Cameras	traffic detector control
INDOT Traffic Operations Center	INDOT Field Equipment	traffic detector control
INDOT Traffic Operations Center	INDOT Ramp Meters	traffic detector control
INDOT Traffic Operations Center	INDOT Speed Monitoring Roadside Equipment	traffic detector control
INDOT Traffic Signal Control System	INDOT Traffic Signal Roadway Equipment	traffic detector control
INDOT Traffic Signal Roadway Equipment	INDOT Traffic Signal Control System	traffic detector data
KYTC District 6 Field Equipment	KYTC District 6 Traffic Operations Center	traffic detector data
KYTC District 6 Field Equipment	TRIMARC (KYTC)	traffic detector data
KYTC District 6 Traffic Operations Center	KYTC District 6 Field Equipment	traffic detector control
KYTC District 6 Traffic Operations Center	KYTC Speed Monitoring Roadside Equipment	traffic detector control
KYTC District 6 Traffic Operations Center	ODOT / KYTC Cameras	traffic detector control
KYTC District 6 Traffic Operations Center	ODOT / KYTC Traffic Counters	traffic detector control
KYTC District 6 Traffic Operations Center	ODOT / KYTC Traffic Sensors	traffic detector control
KYTC Dynamic Message Signs	ODOT / KYTC Traffic Sensors	traffic detector coordination
KYTC Ramp Meters	TRIMARC (KYTC)	traffic detector data
KYTC Speed Monitoring Roadside Equipment	KYTC District 6 Traffic Operations Center	traffic detector data
KYTC Speed Monitoring Roadside Equipment	ODOT / KYTC Traffic Sensors	traffic detector coordination
KYTC Speed Monitoring Roadside Equipment	TRIMARC (KYTC)	traffic detector data
KYTC Traffic Signal Control System	KYTC District 6 Field Equipment	traffic detector control
KYTC Traffic Signal Control System	KYTC Traffic Signal Roadway Equipment	traffic detector control
KYTC Traffic Signal Roadway Equipment	KYTC Traffic Signal Control System	traffic detector data
KYTC Variable Speed Limit Signs	ODOT / KYTC Traffic Sensors	traffic detector coordination
ODOT / KYTC Cameras	KYTC District 6 Traffic Operations Center	traffic detector data
ODOT / KYTC Cameras	ODOT ATMS	traffic detector data
ODOT / KYTC Cameras	ODOT Statewide TMC	traffic detector data
ODOT / KYTC Cameras	TRIMARC (KYTC)	traffic detector data
ODOT / KYTC Connected Vehicle Roadside Equipment	KYTC Traffic Signal Roadway Equipment	traffic situation data
ODOT / KYTC Connected Vehicle Roadside Equipment	ODOT Traffic Signal Roadway Equipment	traffic situation data
ODOT / KYTC Traffic Counters	KYTC District 6 Traffic Operations Center	traffic detector data
ODOT / KYTC Traffic Counters	ODOT ATMS	traffic detector data
ODOT / KYTC Traffic Counters	TRIMARC (KYTC)	traffic detector data
ODOT / KYTC Traffic Sensors	KYTC District 6 Traffic Operations Center	traffic detector data
ODOT / KYTC Traffic Sensors	KYTC Speed Monitoring Roadside Equipment	traffic detector coordination
ODOT / KYTC Traffic Sensors	KYTC Variable Speed Limit Signs	traffic detector coordination
ODOT / KYTC Traffic Sensors	ODOT ATMS	traffic detector data
ODOT / KYTC Traffic Sensors	TRIMARC (KYTC)	traffic detector data
ODOT ATMS	Cincinnati Field Equipment	traffic detector control
ODOT ATMS	City and County Field Equipment	traffic detector control
ODOT ATMS	INDOT Field Equipment	traffic detector control
ODOT ATMS	KYTC District 6 Field Equipment	traffic detector control
ODOT ATMS	ODOT / KYTC Cameras	traffic detector control
ODOT ATMS	ODOT / KYTC Traffic Counters	traffic detector control
ODOT ATMS	ODOT / KYTC Traffic Sensors	traffic detector control
ODOT ATMS	ODOT Speed Monitoring Roadside Equipment	traffic detector control
ODOT District 8 Field Equipment	ODOT District 8 Signal Operations	traffic detector data
ODOT District 8 Signal Operations	ODOT District 8 Field Equipment	traffic detector control
ODOT District 8 Signal Operations	ODOT Speed Monitoring Roadside Equipment	traffic detector control
ODOT Ramp Meters	ODOT ATMS	traffic detector data
ODOT Statewide TMC	ODOT / KYTC Cameras	traffic detector control
ODOT Statewide TMC	ODOT / KYTC Traffic Sensors	traffic detector control
ODOT Traffic Signal Control System	ODOT Traffic Signal Roadway Equipment	traffic detector control
ODOT Traffic Signal Roadway Equipment	ODOT Traffic Signal Control System	traffic detector data
Other City and County Traffic Control Centers	City and County Field Equipment	traffic detector control
TRIMARC (KYTC)	City and County Field Equipment	traffic detector control
TRIMARC (KYTC)	INDOT Field Equipment	traffic detector control
TRIMARC (KYTC)	KYTC District 6 Field Equipment	traffic detector control
TRIMARC (KYTC)	KYTC Ramp Meters	traffic detector control
TRIMARC (KYTC)	KYTC Speed Monitoring Roadside Equipment	traffic detector control
TRIMARC (KYTC)	ODOT / KYTC Cameras	traffic detector control
TRIMARC (KYTC)	ODOT / KYTC Traffic Counters	traffic detector control
TRIMARC (KYTC)	ODOT / KYTC Traffic Sensors	traffic detector control
TRIMARC (KYTC)	ODOT District 8 Field Equipment	traffic detector control