Highway Research Record, Numéro 12

accident cost accident involvements accident rates alternative analysis period annual cost annual highway cost average annual Average daily benefit-cost ratio method benefits budget capital recovery factor cars and trucks commercial vehicles computed Consolidated Freightways construction cost elements costs of accidents curve determining dollar driver equivalent annual costs estimated example expenditures fatal injury Figure flexible surface freeway funds given in Table Grants Pass highway agencies Highway Department highway improvement Illinois imputed interest increase incremental benefit-cost ratio indicated interest rate investment iteration locations M₁ maintenance costs million vehicle-miles minimum motor vehicle municipalities nomic nonfatal injury number of vehicles operating Oregon pavement percent Portland and Seattle present worth procedure projects property damage proposals rate of return reduction replacement model road user cost route rural sample savings selected South Dakota Stanford Research Institute surface structure TRAFFIC ACCIDENTS traffic volume truck combinations Veh-Mi wages willingness to pay