PORTLAND, Ore. (KOIN 6) – Six different cab companies say they will flood the streets around Pioneer Courthouse Square Tuesday, which could cause gridlock.

The Transportation Fairness Alliance, which is comprised of Broadway Cab, Green Transportation, Portland Taxi Cab Company, Sassy’s Cab Co., Union Cab PDX, and Radio Cab say they are going to urge city leaders to require transportation riding sharing companies, like Uber, to play by the same rules as Portland’s regulated private-for-hire transportation providers. To use Uber, customers download an application on their smartphones and order taxis.

Uber has temporarily suspended its operations in the city until April hoping that a deal can be reached. The company is still operating in other Oregon and Washington cities.

Commissioner Steve Novick and Mayor Charlie Hales will convene the task force Wednesday. Local cab companies are worried because they claim they do not have a spot at the table.

The rolling protest is scheduled to start arriving at Pioneer Courthouse Square around 12 pm. Around 3 p.m., an estimated 50 taxis will leave a lot near the intersection of Northeast 26 and Broadway and travel to downtown Portland.