MODEL TO ESTIMATE PASSENGER ORIGIN-DESTINATION PATTERN ON A RAIL TRANSIT LINE

A method that develops a passenger origin-destination (O-D) table for a transit line is presented. The input to the model is the boarding and alighting counts at stations, and the output is the estimated passenger volume for each station pair. The model can make use of the analyst's knowledge of passenger volumes for selected station pairs if it is available in an approximate range. The O-D volumes are estimated to minimize the expected error by locating each estimate as close to the center of the feasible solution space as possible; this is accomplished by a linear programming method. The estimates can be revised iteratively by incorporating the analyst's knowledge of the passenger travel pattern. Examples include the case for which only the nondirectional boarding and alighting counts are available.