Analysis of road network accessibility using graph theory and GIS technology: A study of Bhojpur district, Bihar

Abstract

Analysis of accessibility is an important aspect in the study of transport geography. It generally develops the spatial relationship between one location to other locations and centres. The present study analyses the road network connectivity and accessibility of the study area using graph theory and geographical information system. Graph theory has been used to determine the level of connectivity whereas buffering method gives an idea to understand the physical accessibility in the study area. Shortest path matrix and Shimbel Index have been used for categorically understanding the magnitude of network accessibility. The GIS tool Inverse Distance weighted (IDW) has been used to show the efficiency of road network accessibility in the district. Along with main centre (district headquarter) high accessibility was found in the study region.