​​​​​​Indian Ocean Drive

  • ​Between Two Rocks and Lancelin 
  • Construction is expected to be completed by April 2020
  • Works are part of a safety improvement package

Image: Indian Ocean Drive


After a series of serious crashes on Indian Ocean Drive between Two Rocks and Lancelin, an Indian Ocean Drive Safety Review Group was established in August 2017 to examine road safety issues on this stretch of road, and recommendations are in progress to improve safety.

​Speed limit reduced from 110 km/h to 100 km/h

A ‘real world’ speed assessment was undertaken, coupled with speed data, infringements from Western Australia Police Force and public feedback. Based on this data, the current median operating speed on this stretch of road was found to vary from 99-to-103 km/h.

  • As a result, the report “determined that reducing the speed limit until other infrastructure enhancements could be implemented would improve public safety” 
  • The speed limit change will only increase travel time between Two Rocks Turnoff and Lancelin by an extra three minutes. The 100 km/h speed limit starts at the end of the 90 km/h zone located approximately four km south of Breakwater Drive, and continues until the start of the 90 km/h just south of K.W. Road.
  • The speed limit will be reassessed once all recommended infrastructure improvements have been finalised.

Road upgrades

Road widening, linemarking and construction of 4 overtaking lanes, with Wide Centre Line Treatment (WCLT) to create more space between opposing traffic providing additional reaction time for motorists.

Improved signage

Installation of curve warning signs, wildlife warning signs and replacement of guide signs.

Installation of edge and centre audible line marking

By providing an audible warning to prompt driver recovery, this treatment has the capacity to reduce head-on crashes as well as single vehicle ‘run-off to the right’ crashes.

Safety barriers installed

Safety barriers were installed between Seabird and Lancelin

Project Update 

Works on a 24 kilometre section from Breakwater Drive north to Moore River Bridge are currently on hold for winter, and will kick-off again soon. Works include widening and WCLT linemarking, and are due for completion later in the year. 

Intersection improvements at K.W and Lancelin roads will commence in October, and the final section of widening (19kms) will commence in January 2020 from Moore River Bridge to Seabird. 


  • November 2017: Safety Report released and speed reduction implemented
  • February 2018: Improved signage installed
  • April 2018: Audible lines installed 
  • April to December 2018: Widening works, construction of overtaking​ lanes and WCLT
  • July 2019: Installation of safety barriers between Seabird and Lancelin
  • January to late-2019: Widening and linemarking works from Breakwater Drive to Moore River
  • October 2019: Intersection improvements at K.W Road and Lancelin Road
  • January to April 2020: Widening and linemarking works from Moore River to Seabird
  • April 2020: All works due for completion 



  • Significantly improve road safety
  • Provide safer overtaking opportunities
Last Updated: 19 September 2019