부산대학교 도서관

The redevelopment of corridor roads bring several benefits to the whole city as well as significant changes in local traffic volumes. Usually, the focus, in evaluating such projects, is on its impact on the overall network performance. The evaluation process tends to overlook the impact on the local network. The main objective of this paper is to develop a planning procedure that can be used as a tool for more effectively evaluating the impact of corridor upgrading. The proposed procedure is based on the deterministic user-optimal equilibrium assignment model. The model implementation is carried out by a computer program developed on the PYTHON program platform. The network performance is measured by mathematical statistics such as average speed and a visual representation of the expansion of the service area corresponding to a certain travel time after the execution of the proposed corridor upgrading. The model was calibrated by altering the parameters of volume delay function (VDF) with an overall %RMSE of 24%. The application of the proposed procedure to evaluate the impact of the upgrading of Mahmoudia Corridor in Alexandria proved effective through demonstrating an increase in the overall travel speed and a decrease in volume to capacity ratio (V/C). In spite of the less-than-great overall network improvement due to Mahmoudia upgrading, the major impact on the local network especially along the corridor centerline is evident. The evaluation process combines the magnitude of and the extent of local changes in terms of measuring both aggregate impact power and local propagation range of that changes. [ABSTRACT FROM AUTHOR]