Use of integrated transportation system approach to develop road network and bridge management strategy

Abstract

The growth of the social-economic structure in a region is influenced by the performance of the transportation system, measured by the levels of accessibility and mobility. Unfortunately, there is no adequate model would help decide the prioritization in handling road and/or bridge damage, based on the degree of damage, physical connectedness, and functional connectivity. This study seeks to address that lack. The functional condition of the road is determined and quantified by the Surface Distress Index (SDI), while the type of preservation is determined based on the SDI and the functional connectivity. The functional condition of the bridge is determined using the Bridge Management System (BMS) method. The levels of damage to roads and bridges were found to be 26% and 23%, respectively. The prioritization for handling is given to the main connecting roads in areas that have the greatest contribution to the economic structure, and similar goes for the bridges. Repairing potholes and overlaying are the two most common types of road preservation, whereas guard rail replacement, overlaying of bridge floors, and building runoff bridges are the most common types of bridge maintenance.

Keywords

• accessibility index
• integrated land use and transportation
• physical and functional connectivity
• surface distress index