. . . . "Cost-effectiveness and safety of alternative roadway delineation treatments for rural two-lane highways"@en . . . . "Cost-effectiveness and safety of alternative roadway delineation treatments for rural two-lane highways : final report : prepared for Dept. of Transportation, Federal Highway Administration, Offices of Research and Development"@en . . . . . . . "Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were developed and guidelines formulated by executing the cost-benefit models for selected delineation treatments."@en . . . . . . . "Highway delineators." . . "Benefit cost analysis." . . "Raised road markings." . .