Fleet size calculation for intercity passenger service is an important item in the intercity transportation planning. The intercity transportation planners in companies face problems in determining the optimum number of vehicles that can operate a certain service. Moreover, the investors need to know the exact fleet size required for target service in constructing a new transportation company. Therefore, the objective of this paper is to calibrate and develop models that can calculate the optimum fleet size required for a given intercity service under the Egyptian operating conditions and constraints. To achieve this objective, several relevant researches and studies have been reviewed and discussed. Data collection program has been conducted to develop and calibrate the fleet size models of different service types. Two models were calibrated for O-D scheduled dependent service. Another model was calibrated for O-D independent scheduled services. A fourth model was developed for non-scheduled service. A friendly computer program was developed and its outputs were checked with the manual calculation. Finally, each model was applied on some particular routes to compare the model output with the actual operation. A comparison was carried out for each route service between the model outputs and the actual operating performance. Results showed that, application of the models would save money and solve many transportation problems. |
