A deal hammered out between three members of the San Francisco Board of Supervisors and tech shuttle operators will allow the giant buses that carry thousands of workers to and from Silicon Valley to keep using the city's Muni stops -- for now.

Supervisors London Breed, David Campos and Norman Yee reached the agreement late Monday to extend a Municipal Transportation Agency program that allows shuttles for Google, Apple, Facebook and other firms to use the Muni stops in return for a fee. Critics of the program, including affordable housing advocates, say the shuttles have accelerated the pace of gentrification in the city and have added to traffic congestion and air pollution.

Two weeks ago, the Board of Supervisors postponed action on the matter to give Breed, Campos and Yee time to resolve conflicts between the SFMTA, the shuttle operators and program critics.

"I'm happy to report that we've reached a tentative agreement that we hope to recommend to the rest of the board," Mission district Supervisor Campos said in an interview.

Instead of killing the program while a full environmental review takes place, the deal calls for it to continue in its current form for one year while city officials study its impact.