Arlington and Falls Church citizens asked last week that the planned Metro line from Rossyln to Vienna not be shifted to Tysons Corner.

The primarily reason for opposition to the Tysons Corner alternative - one of several under study regionally - is that it would take four to five years longer to build than the Vienna line, a part of Metro's original 100-mile plan.

Arlington County Board Member Walter Frankland and representatives of a group called Coalition for Metro Accountability attacked the accuracy of the study during a sometimes loud but poorly attended (20 people) hearing in Arlington.

Frankland said projections of Metro ridership by the consulting firm of Peat, marwick, Mitchell & Co. are grossly overstated. The PMM&Co. study projections about 400 million riders annually by 1990 for the combined Metro bus and rail system. Present Metro ridership, bus and rail combined, is about 120 million annually.

Edmond L. Kanwit, a Fairfax City resident and implacable foe of Metro construction beyond the 60 miles presently funded, said: "Metro will not save us from congestion and pollution. Only 10 per cent of the trips that people make will be made on the Metro. It isn't remotely worth the price."

Sonja Elmer, of the Arlington League of Women Voters, said "We are against a terminal at Ballston." Metro is funded from Rossyln as far west as the Ballston station which is near Glebe Road and Fairfax Drive.

The reason for the added time to construct the route to Tysons Corner instead of to Vienna is that a new environmental impact statement and extensive design work would be required, according to Metro officials.

Joan F. Neill, who lives near the now-operating Pentagon City station in South Arlington, testifies in favor of completing all of the planned system in Virginia but said ther should be no increased in parking spaces at outplaying stations, as planner have proposed.

"I don't think we can provide enoght parking lots to take care of these people," O'Neill said. "it's self-defeating."