WORK will start this week to improve traffic flow on Roper Road at the M4 interchange at Colyton.
Roads and Maritime Services will extend the right lane on Roper Road, from Carlisle Avenue to the M4 and build a pedestrian path on the eastern side of Roper Road.
A bus zone and pedestrian refuge will be built near Young Street and a no-stopping zone will be installed southbound from Carlisle Avenue to the M4 on-ramp as part of the upgrade.
Road resurfacing, kerb and gutter replacement and line marking will be carried out.
To minimise disruption to motorists and residents,work will be done between 9pm and 5am from Sundays to Thursdays starting today (April 29) until mid-July, weather permitting.
Partial lane closures and reduced speed limits will be in place during work.
Motorists should plan their journey; allowing extra travel time and following all signs and directions of traffic controllers.
Every effort will be made to minimise noise associated with this work.
"We thank motorists and residents for their patience while this important work is carried out," Mulgoa MP Tanya Davies said.
It's part of a $1.8 million state government commitment to reduce congestion and improve road safety in western Sydney.
■ Details: 132 701 or go to livetraffic.com.