A $5 million upgrade to improve safety and increase vehicle capacity at the intersection of South Street and North Lake Road in Kardinya has now been completed.
Transport Minister Dean Nalder said the project was designed to reduce the number and severity of crashes at the intersection, improving safety for road users.
"A number of improvements were undertaken as part of the upgrade to this major blackspot intersection in Kardinya, which is used by about 30,000 vehicles every weekday," Mr Nalder said.
"In the period from January 2010 to December 2014, 141 crashes were recorded at the intersection.
"The program of works included upgraded pedestrian facilities, traffic signal modifications, extra street lighting and a series of civil, signage and pavement marking improvements."
The Minister said the additional and extended turning lanes would reduce congestion by increasing vehicle capacity, minimising wait times and boosting overall traffic efficiency at the intersection.
"The upgraded lanes are expected to result in less rear-end collisions, therefore improving safety and access for motorists," he said.
"Pedestrian safety has also been enhanced with the installation of zebra crossings on both South Street and North Lake Road."
The project was undertaken by Main Roads' Integrated Service Provider DownerMouchel and funded by the State capital program.
The intersection has a State ranking of 56 in crash frequency in the Perth metro area
30,000 cars use the South Street and North Lake Road intersection every day
Minister's office - 6552 6400