D.C. Acting Transportation Director James E. Clark has issued proposed rulings to establish taxicab stands in more than a dozen District locations and require persons using bicycles on sidewalks to yield the right of way to vehicles at intersections.

The proposal to establish taxicab stands either downtown or near major Metrorail stations is designed to reduce the use of gasoline by taxi drivers and improve links between bus and rail systems and the availability of taxis. Most stands would operate at all times except rush hour, though some would operate around the clock.

The bicycle proposal is designed to fill a gap in an existing law, which specifies that pedestrians have the right of way at intersections. Because it's hard for motorists to spot sidewalk cyclists approaching, Clark said, it would be safer to require bicyclists to yield to motor vehicles.

Taxi stands would be established at Connecticut Avenue and K Street NW, 10th and D streets NW, 7th and F streets NW, 7th and D streets SW, Cedar and Carroll streets NW, 3rd and D streets SW, 19th Street and Massachusetts Avenue SE, 7th Street and Pennsylvania Avenue SE, 1st and D streets SE and 14th Street and Pennsylvania Avenue SE.

Persons who have comments about the taxi stand proposal may write to the Department of Transportation, Office of Mass Transportation, 415 12th St. NW, Room 504. Persons who have comments about the bicycle proposal may write to the department at 613 G St. NW, Room 704.