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- W645333216 abstract "THIS PAPER EXAMINES THE OPTIMUM HIGHWAY TRANSPORTATION TECHNOLOGY BY MINIMIZING THE TOTAL INTERCITY TRANSPORTATION COST FUNCTIONS WITH RESPECT TO THE HIGHWAY TRANSPORTATION DESIGN VARIABLES, THUS DETERMINING WHICH ARE THE OPTIMUM VEHICLE WEIGHT, POWER, AND AXLE DESIGN, PAVEMENT TYPES, DESIGN SPEEDS AND OTHER HIGHWAY SPECIFICATIONS UNDER DIFFERENT CONDITIONS OF TERRAIN, CLIMATE MATERIALS, AND FACTOR COSTS. SOME OF THE FUNCTIONAL RELATIONSHIPS OF THE TRANSPORTATION SYSTEMS WERE ESTIMATED WITH STATISTICAL METHODS, WHILE OTHERS ARE ENGINEERING TECHNOLOGICAL RELATIONSHIPS. THE STATISTICALLY DERIVED FUNCTIONS WERE ESTIMATED FROM TWO SETS OF DATA: AN INTERNATIONAL CROSS- SECTION OF HIGHWAYS CONSTRUCTED IN DEVELOPING COUNTRIES AND CROSS-SECTION DATA FROM THE U.S. EXPERIENCE ADJUSTED TO RELFECT THE FACTOR COST DIFFERENCES WITH RESPECT TO DEVELOPING COUNTRIES. THE TRANSPORTATION COST FUNCTIONS WERE MINIMIZED BY ITERATION AND THE RESULTS SHOWED THAT THE INTERDEPENDENCIES BETWEEN THE DESIGN VARIABLES PREVENTED ANY ATTEMPTS AT THE SUBOPTIMIZATION OF THE TOTAL SYSTEMS CURRENTLY PERFORMED BY TRANSPORTATION PLANNERS. OTHER CONCLUSIONS OF THE PAPER ARE THAT DESIGNS SPEEDS OF 30, OR AT THE MOST 40, MILES PER HOUR ARE APPROPRIATE IN DEVELOPING COUNTRIES, THAT EVEN FOR LOW TRAFFIC VOLUMES BITUMINOUS PAVED ROADS ARE THE MOST EFFICIENT ROADS, AND THAT THE OPTIMUM VEHICLE SIZE IS GREATER THAN THE 5-TON VEHICLES CURRENTLY IM USE IN MOST DEVELOPING COUNTRIES. /AUTHOR/" @default.
- W645333216 created "2016-06-24" @default.
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- W645333216 date "1966-08-01" @default.
- W645333216 modified "2023-09-24" @default.
- W645333216 title "COST FUNCTIONS FOR INTERCITY HIGHWAY TRANSPORTATION SYSTEMS IN UNDER-DEVELOPED COUNTRIES: A DECISION MODEL ON OPTIMUM TECHNOLOGY" @default.
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