US: GTFS - Secure Internet (ITS)

Description:

This solution is used within Canada and the U.S.. It combines standards associated with US: GTFS with those for I-I: Secure Internet (ITS). The US: GTFS standards include upper-layer standards required to implement public, transit-related communications. The I-I: Secure Internet (ITS) standards include lower-layer standards that support secure communications between ITS equipment using X.509 or IEEE 1609.2 security certificates.

Relevant Regions:

Comm Profile: I-I: Secure Internet (ITS)

Comm Class: WAN - Wide Area Network

Standards in Profile:
LevelStandard
AccessInternet Subnet Alternatives
MgmtBundle: SNMPv3 MIB
SecuritySecure Session Alternatives
TransNetInternet Transport Alternatives
TransNetIP Alternatives

Data Profile: US: GTFS

Standards in Profile:
LevelStandard
FacilitiesIETF RFC 4180 CSV Files
FacilitiesIETF RFC 7159 JSON
FacilitiesIETF RFC 9110 HTTP Semantics
FacilitiesIETF RFC 9112 HTTP/1.1
FacilitiesISO 21320-1 ZIP
ITS Application EntityGeneral Transit Feed Specification
ITS Application EntityGTFS Realtime

Solution Issues Severity: 13

The severity issue score calculation only includes issues associated with standards that are included by default.

Solution Issues:

DefaultSeverityNameTypeDescription
FalseMediumOption not standardizedStandardization GapThe option set includes at least one option that is not (yet) defined in a standard.
FalseMediumUncertainty about trust revocation mechanismSecurity GapThe mechanisms used to prevent bad actors from sending authorized messages is unproven.
TrueLowNot a standard (minor)Standardization GapThe document is publicly available and widely used but it is not currently a formal standard.
TrueMediumOutdated security referenceSecurity GapThe standard solution includes an outdated security reference.
TrueHighApplication specification not definedITS Info GapThe logic, performance, and application security rules are not defined for this information flow.

Solution to Triples

SourceFlowDestination
Connected Vehicle Roadside Equipment transit vehicle information Traveler Support Equipment
Other Transit Management Centers transit service coordination Transit Management Center
Transit Management Center transit service coordination Other Transit Management Centers
Transit Management Center transit system data Traffic Management Center
Transit Management Center transit traveler information Traveler Support Equipment
Transportation Information Center broadcast traveler information Traveler Support Equipment
Traveler Support Equipment transit traveler information Connected Vehicle Roadside Equipment