The Australian Transport Index (ATRI) is an index database published by RMIT Publishing and produced by the M.G. Lay Library at ARRB Group. ATRI provides up-to-date information on transport and road related material.

The coverage of the Index includes road safety, transport economics, transport administration, intelligent transport systems, transport and the environment, public transport, road and airfield pavements, road design and engineering, traffic engineering and control, vehicle design and safety, and soil and rock mechanics. The Index contains records from 1960 onwards, with some earlier records.

ATRI also contains over 170,000+ records with 9,500+ web links to content.

The latest edition of the Thesaurus for the Australian Transport Index can be consulted on the ARRB Transport Research web site.