The WA Transport Minister says the government will consider planning for new infrastructure to ease congestion in the city centre.

The RAC has called for a feasibility study to assess the need for a new bridge or tunnel to move traffic around the city, rather than through it.

But Troy Buswell has told ABC Local Radio if a bridge were to be built, he would look at other routes.

"I think the main drivers now in terms of population and freight are to the east of the city, not to the west of the city," he said.

"So irrespective of whether people say "thank heavens you've finally done it" or "gee, you're a visionary" I think the important thing is to get on and provide these bits of transport infrastructure.

"Ultimately we'll work through the planning process.

"But as I look at Perth's population growth areas, and you look at drivers of freight, I think we'll be looking to the east of the city, not to the west of the city, to deal with those problems."