IN just 12 years, the Mandurah train line will reach crush capacity in the morning commute, according to the 2019 Australian Infrastructure Audit.
The audit by Infrastructure Australia examines the infrastructure needs of the community.
According to the audit, drivers on the Kwinana Freeway can expect to spend 60 per cent of their travel time stuck in traffic during peak periods by 2031.
In 2016 peak users spent 40 per cent of their travel time stuck in traffic on the main corridors.
Road congestion will reduce the proportion of jobs able to be reached by car.
According to the audit, Perth’s forecast population growth will be the principal factor increasing pressure on the city’s key access routes by 2031.
Perth’s most congested corridors in 2016 are expected to worsen by 2031, even with the Kwinana Freeway widening project.
Congestion will continue to be particularly acute on key north-south arterial roads.
“Severe congestion on these corridors [including the Kwinana Freeway] will be extremely disruptive to daily travel by cars, buses and trucks,” the audit said.
In the morning peak, the Mandurah train line currently gets busier as services approach the CBD and passengers joining the train are generally required to stand.
“However, the railway is not currently at its maximum, or what would be considered crush capacity,” the audit said.