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City of Wanneroo pushes for lower speed limit on Two Rocks Road

Lucy JarvisNorth Coast Times

The council supported a staff recommendation for the reduced speed limit at its July 19 meeting based on a report following a triple-fatality on the road in March.

The City will also seek approval to install raised reflective pavement markers and guide posts.

“The majority of a section of the road is constructed as two lane undivided single carriageway and has a number of crests and dips,” a council report said.

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“While appropriate line marking is installed on the whole length of the road the sight distance at some locations is restricted by the crests and dips and overtaking opportunity is limited along the road.

“While it is noted that the 85th percentile speed (operating speed) is close to the posted speed limit, it can be established from the crash history that speed has contributed to the severity of the crashes.

“Speed affects both the risk of being involved in a crash due to the decrease in time to react and the severity of a crash should it occur.

“The ‘safe speed’ cornerstone recognises that under a safe systems approach, 70km/h is considered as being the highest survivable speed for a head-on collision.”

According to Main Roads crash data, there were 23 crashes on the 6.5km long road between 2010 and 2014, including two fatalities, five hospital admission crashes and three crashes requiring medical attention.

The more recent fatal crashes included head-on crashes on March 6 when resident Diane Garcia (47) and two others died, and on September 25, 2015 when a 20-year-old man died.