Lifting Queensland's speed limits without upgrading safety would be dubious, its peak motoring body says.

The government isn't ruling out giving motorists the green light to travel more than 110km/h as it reviews limits across the state.

However, the RACQ says major arterials aren't safe enough to support speeds of 120km/h and 130km/h.

RACQ senior traffic and safety engineer Greg Miszkowycz says improvements are needed before any increase beyond 110km/h.

"That is the limit we are currently happy with but if you install safety improvements you could look at lifting it," he told AAP on Thursday.

"We need to strike a balance between safety and efficiency of travel.

"You don't want to see an increase in crashes or an increase in the severity of crashes."

Mr Miszkowycz said the 37km stretch of the Pacific Motorway between Beenleigh and Nerang, south of Brisbane, would be suitable for a 120km/h limit if safety was improved.

Ramp signalling, variable speed limits and lane management devices were required before higher limits could be considered on any motorway or highway, he said.

Transport Minister Scott Emerson said engineers would decide whether raising the 110km/h maximum was appropriate.

The speed limit review has attracted more than 3300 submissions, with many motorists calling for changes on major roads.

Extending the 100km/h zone on the Bruce Highway south to Pine River and increasing the limit on the Pacific Motorway are among those suggested.

About 52 per cent of the submissions identified limits as being too low, while 32 per cent indicated they were too high.

The government will select 100 roads, based on public feedback, and ask engineers to examine them.

Those 100 roads are expected to be determined within the next two months.

No limit changes will be implemented until next year, Mr Emerson said.

Improving line markings and increasing speed limit signage will also be considered as part of the state's first major speed limit review in almost 20 years.