Transportation agencies have developed a number of strategies for dealing with the impacts on safety and capacity of a truck population that has been increasing in volume and in percentage of large tractor-trailers. One strategy that has been suggested is separate lanes for trucks and cars. A reliable methodology to determine when separate lanes for trucks and cars are feasible would enable transportation officials to make informed decisions concerning when this approach should be considered and used. This thesis evaluated a computer program (Exclusive Vehicles Facilities (EVFS)) developed by the Federal Highway Administration for determining the economic feasibility of separating trucks and other vehicles on freeway segments. A 31.5-mile segment of Interstate 81 in Virginia was selected to demonstrate the application of the program. Ten lane separation strategies were evaluated and recommendations were made regarding their potentials.


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