Urbanie & Urbanus

Issue 2022 Dec

Resilient cities

Issue 7, P.40 - P.54

Adaptive Flood Resilient City Design Strategies: An Exploratory Analysis of the Impact of Flooding on Street Network of Dhaka City

Sazdik Ahmed

Department of Urban Planning and Design, The University of Hong Kong, Hong Kong

and  Siddharth Khakhar

Department of Urban Planning and Design, The University of Hong Kong, Hong Kong

Figures

Figure 1 Development of Dhaka City, source: Author


Figure 2 Road Network of Dhaka City, source: world bank, 2022


Figure 3 Topographic map of Dhaka, source: topographic-map.com, 2022



Figure 4 Pluvial flooding scenario (Top) and Fluvial flooding scenario (Bottom)


Figure 5 Conceptual Framework


Figure 6 Data processing flow: Spatial data management, computational analysis, visualization



Figure 7 Flood scenario of Dhaka city in (a) 2004, (b) 2007, and (c) 2014.


Figure 8 Current scenario of flood in Dhaka city, 2022, source: https://www.aa.com.tr, 2022


Figure 9 Road Network during a regular day


Figure 10 Road Network affected by the flood


Figure 11 Impact of flood over the street network of Dhaka



Figure 12 Flood impact on the east-west major connection of Dhaka


Figure 13 Flood impact on the north-south major connection of Dhaka


Figure 14 Flood impact at the meso-scale in Khilgaon residential area, Dhaka


Figure 15 Existing situation of the potential alternative roads during flooding time


Figure 16 Timeline for the strategies


Table 1 Changes in BtHn values in before and after situation of flooding in selected roads