THE speed limit on part of the Kwinana Freeway will be lifted to 110km/h for a three-month trial period.

The maximum speed limit will be increased on the new section of the freeway between Mandjoogoordap Drive in Lakelands to just south of Safety Bay Road.

Up to 45,000 vehicles use that section of the freeway per day.

Transport Minister Troy Buswell said the trial, due to begin early next month, came about after requests from the community for a higher speed limit and a review of motorists by Main Roads WA.

"The high standard of the freeway appears to lend itself to a higher tolerable maximum speed, and this trial will determine if a 110km/h limit is appropriate and if it better reflects the actual operating speed of this section of the freeway," Mr Buswell said.

Mr Buswell said speed compliance and crash data would be monitored during the trial.

He said he was not considering increasing the speed limit on other parts of the freeway network.