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 Zahirul Baten by e-mail or on (08) 9323 4160.
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.
Document deleted. Refer to Main Roads Supplement to Austroads Part 5A and Austroads Guide to Road Design (GRD) Part 5A.