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addition, most of the survey respondents from St. Paul Downtown prefer a runway • of at least 4,000 feet. (3) Airside Facilities Lake ELno's runway layout consists of a 2,850-foot long by 75-foot wide northeast-southwest runway (Runway 13/31) and a2,500-foot long by 75-foot wide northwest-southeast runway (Runway 3/21). Both runways aze served by full pazallel taxiways. The airport's 1976 master plan proposes two parallel runways (13L/31R and 3R/21L); however, a pazallel runway tray not be required by the end of the planning period. The master plan recommends that a new, 3,900-foot long pazaliel runway (13R/31L) be constructed approximately 600 feet from the existing primary runway (13/31). This new runway would require the relocation of Backwoods Lane. The master plan also recommends a 1,000-foot extension to Runway 3/21, for an ultimate runway length of 3,500 feet. It is also recommended that Runway 3/21 be widened to 100 feet. While the longer, pazallel runway (13R/31L) would enhance Lake Elmo, it will probably not be required during the planning period from a capacity standpoint. In addition, the master plan indicates that a pazallel rumvay would be at least three times the cost of 1,000-foot runway extension for Rumvay 3/21. Considering the existing nonprecision approach is on Runway 3, and no further extension is indicated for Runway 13/31, it is recotttmended that Runway 3/21 be extended. A 1,000-foot extension would allow the airport to handle a greater percentage of the general aviation operating fleet at increased useful loads and help attract excess demand from St. Paul Downtown Airport. The majority of demand diverted from St. Paul Downtown to Lake Elmo is expected to be light single- and twin-engine aircraft. In addition to the tumvay extension, it is also recommended that Runway 3/21 be widened to 100 feet. A comprehensive development plan is currently V-84