US: GTFS - Secure Internet (ITS)
Description:
This solution is used within 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.
Comm Profile: I-I: Secure Internet (ITS)
Standards in Profile:
Level | Doc # | Standard | Description |
Access
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Internet Subnet Alternatives
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A set of alternative standards that includes any Subnet Layer method of connecting to the Internet.
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Mgmt
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Bundle: SNMPv3 MIB
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A bundle of standards (RFCs) that groups the common management information bases (MIBs) used to manage IP networks at the transport layer and below using SNMPv3.
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Security
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Secure Session Alternatives
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A set of alternative standards that identifies standards that are used to establish and maintain secure Internet sessions. If an information exchange does not require encryption, the (D)TLS session can negotiate NULL encryption. NOTE: If TCP is selected in the TransNet Layer, one of the TLS alternatives must be selected from this alternative set; if UDP is selected in the TransNet Layer, one of the DTLS alternatives must be selected from this alternative set.
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TransNet
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Internet Transport Alternatives
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A set of alternative standards that identifies the two major options for the transport layer for mainstream IP-based deployments.
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TransNet
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IP Alternatives
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A set of alternative standards that allows for the selection of IPv4 or IPv6.
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Data Profile: US: GTFS
Standards in Profile:
Level | Doc # | Standard | Description |
Facilities
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IETF RFC 4180
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IETF RFC 4180 CSV Files
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This standard (RFC) documents the format used for Comma-Separated Values (CSV) files and registers the associated MIME type "text/csv".
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Facilities
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IETF RFC 7230
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IETF RFC 7230 HTTP
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This standard (RFC) defines the main Application Layer protocol used for the world-wide web.
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Facilities
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ISO 21320-1
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ISO 21320-1 ZIP
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ISO/IEC 21320-1 specifies the core requirements for 1) document container files, and 2) implementations that produce and/or consume document container files. It normatively references the Zip File Format Specification version 6.3.3 of PKWARE(R) Inc. Document container files are conforming Zip files as specified by that document.
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ITS Application Entity
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GTFS
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General Transit Feed Specification
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This document defines a common (open data) format for exchanging public transportation schedules and associated geographic information.
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ITS Application Entity
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GTFS Realtime
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GTFS Realtime
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This document defines a feed specification that allows public transportation agencies to provide real-time updates about their fleet to application developers. It is an extension to GTFS (General Transit Feed Specification), an open data format for public transportation schedules and associated geographic information. GTFS Realtime was designed around ease of implementation, good GTFS interoperability and a focus on passenger information.
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Readiness Description:
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.
Last Updated 5/25/2023