| Type | SDO | Title | Doc ID |
|---|
| Standard Profile | Profile | NTCIP using DATEX | NTCIP–DATEX |
|---|
| Message/Data | General Transit Feed Specification Discussion Group | General Transit Feed Specification (GTFS) Static | GTFS |
|---|
| European Committee for Standardization | Service Interface for Real–Time Information (SIRI) | TS 15531 |
| American Public Transportation Association | Standard for Transit Communications Interface Profiles | APTA TCIP–S–001 3.0.4 |
| Communications Protocol | Consortium of AASHTO, ITE, and NEMA | Point–to–Point Protocol Over RS–232 Subnetwork Profile | NTCIP 2103 |
|---|
| Consortium of AASHTO, ITE, and NEMA | Transportation Transport Profile | NTCIP 2201 |