Land Use Change Analysis in a Highway Corridor in Southern Bangladesh

Land Use Change Analysis in a Highway Corridor in Southern Bangladesh

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Abstract

Sarwar Jahan
Professor and Head
Department of Urban and Regional Planning
Bangladesh University of Engineering and Technology
Dhaka-1000, Bangladesh

Abstract
This paper presents the results of a study that was undertaken to investigate the changes in land use in a highway corridor connecting three growing urban centres in Southern Bangladesh. For the purpose of the study several sets of maps were prepared for 1977, 1984 and 1995 through the interpretation of satellite images and the use of available land use maps. The maps provided information on patterns and diversity of land use in the study area for the 1977-95 period. The study afforded a wide range of information on land use dynamics in the corridor which are useful for planning purposes. On the basis of information contained in the land use maps, a Markov Model was also developed in order to specify the process of land use change and the specific relationships in the process of change. An attempt was also made to determine the magnitude of changes in different types of land uses during the study period. The results of the analysis indicate that significant developments took place in the corridor between 1977 and 1995. It was found that the degree of land use diversity in the study area increased gradually during the study period. About 70 percent of the land parcels were converted from single use to multiple use parcels. As regards the interrelationships between different types of uses the Markov Model analysis showed that certain uses were more flexible than others when considering their conversion to other uses. In short, the study made a comprehensive analysis of land use changes in the highway corridor under study and thus added to our general understanding of the patterns and process of land use change in the corridor.