Southern Gateway Alliance - Mandurah Entrance Road
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Southern Gateway Alliance - Mandurah Entrance Road
- 1. Engineers Australia September 2010 Dave Thomas, Project Director, Main Roads Graeme Nicholls, A/Manager Project Services, Main Roads
- 7. Tunnel Installation - video
- 11. Public Art - sculptures
- 13. Vision Zero Development and application of sustainable solutions that can reliably prevent death and serious injury, in spite of human fallibility and provide inherent safeness of the road”
- 16. Vision Zero
- 17. Vision Zero
- 23. Roundabout – 4 Way
Notas do Editor
- Aka Safe Systems Introduced to Main Roads and SGA on NPBH and carried forward to MER Definition Always tried to be safe Break down – death and serious injury - human fallibility – “cant stop idiots from killing themselves” – lets stop assuming that. Inherent safeness – can’t hurt if you tried.
- Met with designers fortnightly. Job was to guide design team and challenge us.
- Suggested by SSAG Simple measurement to track improvements to the design 3 hierarchy levels: Hierarchy level 1, Sustainably Safe Road and roadside design features that prevent the possibility of serious injury and death. Can be thought of as methods to eliminate, substitute or protect the hazard. Examples are: At conflict points avoidance of right angle crossings in favour of acute angles, combined with speed limiting features; Flexible barriers on roadsides and medians; Pedestrians crossing where speeds are reduced by the road design. Hierarchy level 2, Real Time Intervention Reliable warning or intervention systems that detect high risk conditions and provide specific warnings to the road user (eg. ITS, Traffic Signals, Audio Tactile Edge Lines). This may be thought of as methods to provide engineering control of the hazard. Hierarchy level 3, Regulate/ Control Warning, guidance, educational and regulatory/enforcement measures are applied to mitigate remaining risks. These rely on the vehicle driver. This is a “business as usual” solution.
- NN now 57 Mandurah Road is 12
- Obvious that the feature most lacking in Safe Systems principles was intersection. High approach speeds. Likely to have the normal incidence of serious right angle crashes.
- SSAG recommended investigating roundabout. Simple assessments of capacity – won’t work Need double right turn – not allowed Andrew O’Brien from Victoria Owen Arndt from Qld
- “ Sidra not reliable with roundabouts.” Video survey of another two lane roundabout with similar mix of vehicle types to calibrate SIDRA.
- All retrofits Lines not visible in certain conditions Concern that it might create more confusion.
- Flat portion Free slips with straights.
- High approach speeds Artwork Chicane Clear runouts Narrowed cross section
- Exchequer kerbed off NN now 57 – between outstanding and best practice Mandurah Road is 12 – between poor and failure