2 TROUBLED YEARS ON SUBWAYS SEEN BY M.T.A. NOMINEE
New York's subway riders can expect two to three years of ''frustration'' as major work on rebuilding the system gets under way, Robert R. Kiley, the chairman-designate of the Metropolitan Transportation Authority, said today. ''Users of the subway in New York City are facing very difficult circumstances, more than any others in the country,'' Mr. Kiley said in an interview. ''They're going to have to put up with rebuilding the system. It's going to be a frustrating two or three years.'' Outside the weathered gray-shingled house at Lambert's Cove on Martha's Vineyard, where he went to relax with his family this weekend, Mr. Kiley discussed some of the changes he envisions for the largest mass-transit and commuter-rail system in the country.