摘要：In city's smart roadway system, the effectiveness in accessibility of traffic to various part of the city is heavily determined particularly by the traffic volume. Hence, traffic congestion in roads significantly impedes the accessibility, resulting in declining livability. Evidently land use and traffic are inveterately interrelated; thereby change in land use has deterministic impacts on traffic volume. An overly populous megacity Dhaka is confronted with escalating traffic volume day by day. In addition, concomitant land use pattern surrounding its roadways is also changing significantly. Careless unplanned development of land uses in Dhaka city has resulted in perpetual traffic congestion along with pollution, thereby aggravating its sustainability. In this context, this paper addresses the impact of land use change on the traffic volume of Dhaka city. We first identified and quantified the land use and traffic volume change from 2007 to 2012 based on the study route. Next, we conducted Geographic Information System (GIS)-based assessment on the impact of land use change on traffic volume and traffic Peak Hour Factor (PHF). Land use and traffic volume data are collected by field survey and from secondary sources. Analyses are done employing dedicated ArcGIS and spreadsheet tools. The results show that from 2007 to 2012 the traffic volume in the study route increased on an average by 30.75%. Furthermore, the PHFs are much lower in 2012 indicating more variation in traffic flow distribution. These phenomena can be attributed to land use change around the vicinity of the study route where residential and commercial use increased and mixed use decreased. The obtained results thus have an implication on increasing congestion and pollution as well as downscaling livability.
