OKI Regional ITS Architecture

NTP - UDP/IP

Description

This solution is used within Australia, Canada, the E.U. and the U.S.. It combines standards associated with NTP with those for I–I: UDP/IP. The NTP standards include standards required to reliably set time information in a subsystem. The I–I: UDP/IP standards include lower–layer standards that support the Network Time Protocol that allows NTP servers to provide time synchronization services to other NTP servers and clients.

Includes Standards

Level	DocNum	FullName	Description
Security		Services not defined	The services related to this portion of the stack are relevant, but the solution does not offer these services and no development efforts are expected to address this omission.
ITS Application Entity	No Standard Needed	No Standard Needed	The services related to this portion of the stack are not critical within the scope of this solution.
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.
TransNet	IETF RFC 768	User Datagram Protocol	This standard (RFC) defines a connectionless, low bandwidth Transport Layer that is typically used with IP.
Access		Internet Subnet Alternatives	A set of alternative standards that includes any Subnet Layer method of connecting to the Internet.

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
Security inadequate	Medium	The solution does not provide adequate communications security for the information triple, which potentially jeopardizes C–ITS operations.	(None)	(All)

Supports Interfaces

Source	Destination	Flow
City and County CV Service Monitoring Systems	Cincinnati Field Equipment	time local form
City and County CV Service Monitoring Systems	Cincinnati Public Services Department	time local form
City and County CV Service Monitoring Systems	Cincinnati Traffic Control Center	time local form
City and County CV Service Monitoring Systems	City and County Connected Vehicle Roadside Equipment	time local form
City and County CV Service Monitoring Systems	City and County Field Equipment	time local form
City and County CV Service Monitoring Systems	City and County Traffic Control Center	time local form
City and County CV Service Monitoring Systems	Hamilton County Field Equipment	time local form
City and County CV Service Monitoring Systems	Hamilton County Maintenance Division	time local form
City and County CV Service Monitoring Systems	Hamilton County Signal Operations	time local form
City and County CV Service Monitoring Systems	Other City and County Maintenance Dispatch Facilities	time local form
CVG Airport CV Service Monitoring Systems	CVG Airport Connected Vehicle Roadside Equipment	time local form
CVG Airport CV Service Monitoring Systems	CVG Operations Center	time local form
INDOT CV Service Monitor System	INDOT Connected Vehicle RSE	time local form
INDOT CV Service Monitor System	INDOT Lane Control Devices	time local form
INDOT CV Service Monitor System	INDOT Ramp Meters	time local form
INDOT CV Service Monitor System	INDOT Speed Monitoring Roadside Equipment	time local form
INDOT CV Service Monitor System	INDOT Traffic Signal Control System	time local form
INDOT CV Service Monitor System	INDOT Traffic Signal Roadway Equipment	time local form
INDOT CV Service Monitor System	INDOT Variable Speed Limit Signs	time local form
KYTC CV Service Monitor System	KYTC Automated Gate Closure Systems	time local form
KYTC CV Service Monitor System	KYTC Lane Control Devices	time local form
KYTC CV Service Monitor System	KYTC Speed Monitoring Roadside Equipment	time local form
KYTC CV Service Monitor System	KYTC Traffic Signal Control System	time local form
KYTC CV Service Monitor System	KYTC Traffic Signal Roadway Equipment	time local form
KYTC CV Service Monitor System	KYTC Variable Speed Limit Signs	time local form
KYTC CV Service Monitor System	ODOT / KYTC Connected Vehicle Roadside Equipment	time local form
KYTC CV Service Monitor System	TRIMARC (KYTC)	time local form
ODOT CV Service Monitor System	ODOT / KYTC Connected Vehicle Roadside Equipment	time local form
ODOT CV Service Monitor System	ODOT ATMS	time local form
ODOT CV Service Monitor System	ODOT Automated Gate Closure Systems	time local form
ODOT CV Service Monitor System	ODOT Lane Control Devices	time local form
ODOT CV Service Monitor System	ODOT Speed Monitoring Roadside Equipment	time local form
ODOT CV Service Monitor System	ODOT Traffic Signal Control System	time local form
ODOT CV Service Monitor System	ODOT Traffic Signal Roadway Equipment	time local form
ODOT CV Service Monitor System	ODOT Variable Speed Limit Signs	time local form