The information below is intended to reflect the preferred practice of Main Roads Western Australia ("Main Roads"). Main Roads reserves the right to update this information at any time without notice. If you have any questions or comments please contact Steve Curgenven by e-mail or on (08) 9323 4415.
To the extent permitted by law, Main Roads, its employees, agents, authors and contributors are not liable for any loss resulting from any action taken or reliance made by you on the information herein displayed.
The following glossary is an alphabetical list of some of the terms commonly used in road design and construction by Main Roads Western Australia. This glossary is provided to assist understanding of the guidance provided in the Standards website. Generally it only lists terms that are not covered by the Australian Standard (AS1348-2002), or those terms where the interpretation or common use practice of Main Roads Western Australia may differ from that of the Australian Standards. If the reader requires more precise information, refer to the Road Traffic Code 2000 or AS1348.
Terms shown in Bold Type are the preferred Main Roads WA Terminology.