The Alexandria School Board decided last night to go ahead with a busing plan that would move school opening times forward to as early as 7:30 a.m. next fall.

The board voted to ask the City Council to make a budget transfer allowing the purchase of nine new buses. The school system relies heavily on the Metro bus system to get students to school now, but in the fall, with the opening of subway service to the city, that service is scheduled to be cut back.

The City Council is expected to approve the requested $400,000 fund transfer, which would also be used to buy elementary reading texts and a high school computer laboratory.

Under the busing plan, school opening times would remain staggered. The opening time at T.C. Williams High, the city's only high school, would move from 9:15 a.m. to 7:30 a.m., with the school day ending at 2 p.m.

Junior high school students would begin classes as much as 45 minutes earlier than they do now. Elementary school pupils would start as much as 50 minutes earlier.However, Mount Vernon and William Ramsay elementary schools would not be affected by the plan.