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Office of the Assistant Secretary for Research and Technology
ITS Joint Program Office

ITS Standards

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ITS Standards have been developed for many of the architecture flows in the National ITS Architecture. Click on the standard(s) to view the architecture flows and their communication requirements. More...

APTA TCIP-S-001 4.0.0
APTA Standard for Transit Communications Interface Profiles

This standard allows for TCIP components to exchange information using standardized mechanisms. Data will be exchanged among transit devices, systems and subsystems. The standard covers the following business areas: Scheduling, Passenger Information, Incident Management, TCIP Tool Support, Onboard Systems, Control Center, Fare Collection, Spatial Representation, Common Public Transport and Transit Signal Priority.
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For more information on how to obtain standards: Phone: 804-560-1398
APTA TCIP standards are available for free download. More information is available at

Current Published Version: Version 4, Published in Aug 2013

Previous Development Activity: Version 3.0.4: Published (Nov 2011); Version 1: Published (Sep 2006)

National ITS Architecture