Plan to limit crashes
SPEED REDUCED ON INDIAN OCEAN DRIVE
THE speed limit on Indian Ocean Drive dropped to 100km/h between Two Rocks and Lancelin last week.
Main Roads WA reduced the limit by 10km/h on November 9, a day after the Indian Ocean Drive Highway Safety Review Group released its road safety review.
The change in speed limit was one of the recommendations identified in the review that followed several fatal and serious crashes on the road this year.
The posted 100km/h limit applies between the end of the existing 90km/h zone near Breakwater Drive, with the speed zone reverting back to 90km/h just after K.W. Road.
Main Roads will also finish installing audible centre and edge lines on that stretch by February 2018, providing drivers with an audible warning if their vehicle crosses painted lines.
The review group included staff from the Road Safety Commission, WA Police and Main Roads, and was chaired by acting Road Safety Commissioner Iain Cameron.
Mr Cameron said while there was evidence of unsafe driver behaviour, such as speeding and dangerous overtaking, police only identified traffic offences as contributing factors in two of the 28 crashes.
“Subsequent analysis by the review group showed that vehicles on the wrong side of the road were in a drift or loss-of-control situation due to potential contributing factors involving fatigue, steering task and road geometry,” he said.
“This would normally have resulted in a single vehicle run-off road crash.
“However, when combined with a growth in vehicles using the road, the drift or loss of control over the centrelines to the right resulted in a side swipe and head-on crash occurring at rates above the network average.
“While tourists were involved in some crashes, they were not the norm or the majority.”
Mr Cameron said the current median operating speed varied from 99-103km/h on the road, although speed surveys also found some motorists exceeded the limit.