VOTERS throughout Greater Washington cast their urban/suburban lot with the status quo on Nov. 6 -- returning the entire "regional caucus" to the House and Senate and continuing for the most part with the same local officials who have been governing them for years. Just as familiar as the faces of the victors are the issues they are likely to confront now. No matter where in the metropolis you take a survey, the overriding issue is transportation. Getting There is a general grind. Any serious progress will depend on the cooperation of local and regional officials.

Roads, bridges and bus service are all involved. But turn to the subway, and you're talking interjurisdictional tightrope duty for the delegations on Capitol Hill and in Annapolis, Richmond, the District Building and every seat of local government. At the federal level, there are positive signs of support, with Transportation Secretary Elizabeth Hanford Dole on the record as praising Metro's newest plan for completing the subway system. But does this mean the Reagan administration will approve the plan? Unclear. Will the bipartisan support given Metro by the Maryland and Virginia senators and the House members from suburban Maryland and Northern Virginia have to be rallied again? Definitely.

In Montgomery and Prince George's counties, where local government seats were not up for election this year, it means continuing the unpleasant but essential job of maintaining the financial commitment to Metro that the federal government correctly demands. In Arlington County, where John Milliken was returned to the county board after a strong year as chairman of the Metro board, this mission also seems understood. In the District, a change in one of 13 council seats shouldn't make any noticeable difference in the city's commitment, either.

The question mark is Fairfax County, where control of the county board of supervisors will switch from the Democrats to the Republicans for the first time since Reconstruction (which, as the subway builders know, came well before Construction). Up to now, Republican board chairman John F. Herrity has lacked a working majority. If the new GOP majority falls in line behind Mr. Herrity's familiar hot-and-cold blustering about Metro in general and subway financing in particular, regional progress toward a completion of the rail system could be thwarted. The hope is that enough supervisors will continue to sense Fairfax County's overwhelming interest in prompt and cost- efficient completion of the entire 101-mile system.