THEY have raised the ire of many motorists but Main Roads says it is doing its best to minimise delays with its roadworks near Ipswich.
The Department of Transport and Main Roads (TMR) says roadworks are underway on Karrabin-Rosewood and Haigslea-Amberley roads to repair damage from the 2013 floods.
A spokesman said works would be done from Monday to Saturday, between 6am and 6pm, with occasional out-of-hours work as required.
He said there would also be 24-hour works on Karrabin-Rosewood Rd at the Karrabin Railway Station crossing from 6pm next Friday to midnight next Sunday.
"These will coincide with Queensland Rail's annual maintenance shutdown period to avoid any impact on rail services," the spokesman said.
"Changed traffic conditions include temporary traffic lights, traffic controllers, reduced speed limits and lane closures."
People using Haigslea-Amberley and Karrabin-Rosewood roads to get to and from work of schools have certainly noticed the difference.
Motorists forced to line up at red lights are getting frustrated by sometimes long delays, especially at unmanned lights at night.
A post on the Queensland Times web site vented a torrent of anger. The TMR spokesman said it was trying to restrict the pain.
"To minimise delays, only two sets of temporary traffic signals are in place on each road at any one time," he said.
"We also monitor the temporary signals to ensure efficiency and reduce delays.
"Motorists can expect minor delays at each site and are encouraged to plan their journeys accordingly.
"TMR takes any complaints about temporary road works seriously."
Works are expected to be completed by mid-September, weather and construction conditions permitting.
"We will continue working with the community, elected representatives, residents and directly impacted stakeholders to address any concerns and keep them informed about the projects," he said.
"We appreciate the community's patience while these important works are carried out."