​Following a successful trial, we are rolling out yellow box line markings to a further 12 intersections on the Perth metropolitan road network.

Yellow box markings are used around the world as a reminder to drivers not to stop within an intersection, which can block other vehicle movements.

Quite simply, a yellow 'box' is painted within an intersection to indicate the area where drivers should not stop. It sounds like common sense but we often see drivers getting stuck in an intersection, causing frustration to other drivers and impacts to traffic flow.

In 2016, we conducted a trial at four intersections across Perth of two types of yellow box markings, one from Singapore and the other from the United Kingdom.

Through before and after analysis, the results showed that the Singapore style was the most effective overall to implement across the network as a traffic flow improvement measure.

The trial also confirmed that the yellow box markings had reduced the number times vehicles queued across the intersection.

We have identifed 12 sites, which will receive yellow box line markings by end of June 2017:

    • James Street and Johnson Street, Guildford
    • James Street and Meadow Street, Guildford
    • Ellen Stirling Boulevard and Scarborough Beach Road, Innaloo
    • West Coast Highway and Manning Street, Scarborough
    • Stephenson Avenue and Scarborough Beach Road, Osborne Park
    • Cedric Street and Ellen Stirling Boulevard, Innaloo
    • Stirling Highway and Bay View Terrace, Claremont
    • Stirling Highway and Leura Avenue, Claremont
    • Albany Highway and Liege Street, Cannington
    • Orrong Road and Wright Street, Carlisle
    • Canning Highway and Ardross Street, Applecross
    • Canning Highway and Preston Point Road, East Fremantle

Watch our video below to see how it's done. Remember, if there is a yellow box, no yellow box or even a chili crab - same rules apply.


Visit the project page to find out more.