Guide to Road Design Part 3: Geometric Design Sydney 2016 Guide to Road Design Part 3: Geometric Design Third edition prepared by: Richard Fanning, Gary Veith, Mike Whitehead Publisher and Peter Aumann Austroads Ltd. Level 9, 287 Elizabeth Street Third edition project managers: Richard Fanning, John Spathonis Sydney NSW 2000 Australia Phone: +61 2 8265 3300 Abstract
[email protected] This Guide provides road designers and other practitioners with information www.austroads.com.au about the geometric design of road alignments. About Austroads Design parameters include: road classification; design speeds; design vehicles; alignment controls; cross-section components, including travel Austroads is the peak organisation of Australasian lanes, shoulders and verges; and provisions for public transport and cyclists. road transport and traffic agencies. Speed parameters include: operating speed, desired speed and design Austroads’ purpose is to support our member speed; and their relationship with each other. organisations to deliver an improved Australasian road transport network. To succeed in this task, we Horizontal and vertical alignments include development and application of: undertake leading-edge road and transport circular curves; superelevation; grades; vertical curves; procedures for the research which underpins our input to policy grading of a road alignment; and determination of sight distances across development and published guidance on the vertical curves. design, construction and management of the road network and its associated infrastructure. Keywords Austroads provides a collective approach that Geometric road design, operating speed, cross-section, traffic lanes, delivers value for money, encourages shared shoulders, verge, batters, roadside drainage, medians, bicycle lanes, HOV knowledge and drives consistency for road users.