A Method for Processing of Egress Traffic Data Collected by Regional Highway Network OD Study

The external and transit traffics are two important indexes in reflecting the regional traffic locationi¤ the demands of OD study of regional highway network, the contents of data processing collected by traffic investigation were discussedi¤The detail process of data-encoding was presented: improvements in external traffic zone division were made, and the conversion from traditional traffic zone system to the new one was studiedi¤ logical judging rule for entrance and exit was put forward based on the travel behavior of drivers, and a new algorithm based on the new traffic zone system was then put forwardi¤The preparations and error correction methwere also discussedi¤An application example shows that the algorithm ensurs the consistency of traffic assignment results (User-Optimized Equilibrium model) with investigation data of regional passage ways, the maximum error percentage is less than 1%i¤