Showing papers on "Fleet management published in 1967"

Commercial v/stol systems analysis by airline simulation

Abstract: The increasing demand by the public for travel, together with the increasing congestion at air transport terminals, demands a vehicular system which will better serve the short-haul passenger while relieving congestion at medium to long-haul terminals. A V/STOL system now on the immediate horizon will answer the need. A total economic analysis of the system is presented. This analysis considers the interactions between Federal and local governments, the operators, the manufacturer, and the traveler. The basic tool employed is short-haul system simulation. This is a computerized simulation program derived from the Lockheed Airline System Simulation model. This program will be used to obtain results which are important to the profitability, procurement, and operation of a V/STOL short-haul system.

A vehicle performance model for highways in developing countries

Abstract: A MODEL IS DESCRIBED WHICH WAS DESIGNED SPECIFICALLY TO DETERMINE THE PERFORMANCE OF A PRESPECIFIED FLEET OF VEHICLES OPERATING OVER A GIVEN ROADWAY HAVING UNIFORM PHYSICAL CHARACTERISTICS AND LOCATED IN A PREDETERMINED COST ENVIRONMENT. INPUT CONSISTS OF VEHICLE CHARACTERISTICS, LINK CHARACTERISTICS, AND VOLUME-FLOW INFORMATION. OUTPUT INCLUDES NOT ONLY INDIVIDUAL VEHICLE PERFORMANCE MEASURES, BUT AGGREGATE LINK PERFORMANCE AS WELL. THE PRIMARY USE OF THE MODEL IS FOR THE PREDICTION OF COST-PERFORMANCE CHARACTERISTICS IN THE CONTEXT OF A LARGER SCALE SYSTEM SIMULATION. IT IS USED TO DETERMINE COSTS TO THE TRANSPORTER AND PERFORMANCE IMPLICATIONS TO THE PRODUCER WHO SHIPS OVER THIS LINK. THE CAPITAL COST OF CONSTRUCTING EACH ALTERNATIVE ROADWAY MUST BE SECURED BEFORE MEANINGFUL ANALYSIS CAN BE PERFORMED. THE MODEL CAN ALSO BE USED IN THE SUBOPTIMIZATION PROCESS ASSOCIATED WITH THE LOCATION AND DESIGN OF NEW LINKS OR THE UPGRADING OF OLD ONES. EACH PROJECT ALTERNATIVE IS DESCRIBED BY A DIFFERENT SET OF LINK CHARACTERISTICS. THE VEHICLE OPERATING COST CONSEQUENCES FOR EACH CAN THEN BE OBTAINED BY USING THE MODEL. MINIMIZING THE TOTAL COST OF VEHICLE OPERATION AND CONSTRUCTION IS ACCOMPLISHED BY RUNNING THE VEHICLE PERFORMANCE MODEL WITH THE ANTICIPATED TRAFFIC VOLUMES FOR EACH YEAR OF THE PLANNING PERIOD TO OBTAIN THE OPERATING COSTS.