Table of Contents Table of Contents i List of Figures iv Chapter 1 INTRODUCTION 6 1.1 Introduction 6 1.2 Need for the study 6 1.3 Selection of Area for Case Study 7 1.4 Objectives 7 1.5 Methodology 8 1.6 Sources of Data 9 Chapter2PROFILE OF AHMEDABAD CITY 10 2.1 Introduction 10 2.2 Location: 11 2.3 Physiography: 12 2.4 Climate and Rainfall Characteristics: 12 2.5 Drainage System: 13 2.6 Geology: 13 2.7 Soil: 13 2.8 Und Use: 13 2.9 Demography 14 2.10 Population Density: 15 2.11 Industries 15 2.12 Transport: 16 Chapter3 STORM WATER SYSTEM 18 3.1 Storm Water System Scenario: 18 3.2 Water Logging and Flooding Problems: 18 3.3 Poor Coverage: 18 3.4 Blockage of outlets and silting of storm water drains: 18 3.5 Details on Water logged areas in West Zone of Ahmedabad city: 20 3.6 Problematic Flood Hit Area in West Zone of Ahmedabad City: 21 3.7 Flood Level in July 2000: 22 Chapter4 APPLICATIONS OF GIS 23 4.1 Introduction: 23 4.2 Transportation Network: 24 4.3 Und Use Map: 25 This map shows the agricultural areas of the study area. As this is an urban area, agricultural areas are very less in city. Here, agricultural areas mostly exist in western corner of the study area. Agricultural land also includes green belt areas.Contour Maps: 42 Contour Maps: 43 4.4 Triangulated Irregular Network Maps: 44 4.5 Digital Elevation Model: 45 4.6 Generation of streams Catchments 46 Chapter 5FLOOD VULNERABILITY ANALYSIS 47 5.1 Criteria to Identify Flood Vulnerability Areas: 47 5.2 Method of mapping Surface Runoff: 47 5.2.1Rational Method: 48 5.3 Major assumptions in of Rational Formula: 49 5.3.1Formula to Estimate Peak Surface Runoff by Rational Method: 49 5.3.2Coefficient Values of runoff for different Catchment characteristics: 50 5.1.3Rainfall Intensity: 50 5.1.4Time of Concentration: 50 5.4 Calculation of Surface Runoff for different Catchment Areas: 51 5.5 Slope map: 54 5.6 Built Density: 56 5.7 Drainage Density: 58 Chapter 6ANALYSIS OF EXISTING STORM WATER DRAINAGE NETWORK 61 6.1 Introduction:61 6.2 Need for storm water drainage network: 61 6.3 Manning Formula: 62 6.4 Manning's Coefficients for Storm Water Drainage: 62 Chapter 7SPATIAL MULTI-CRITERIADECISION ANALYSIS 71 7.1 Introduction: 71 7.2 Framework for Spatial Multi-criteria Decision Analysis: 72 7.3 Method of Spatial Multi-criteria Analysis: 73 7.3.1Derivation of Criterion Weights: 73 7.3.2Estimating weights: 73 7.3.3Ranking Method: 73 7.3.4Reclassifying Data set: 73 7.4 Reclassification of maps: 74 7.4.1Reclassified Surface Runoff Maps: 76 7.4.2Reclassified Built Density Map: 77 7.4.3Reclassified Drainage Density Map: 78 7.5 Using Reclassify Function: 79 7.6 Flood Vulnerability Analyses: 79 7.7 Multi Criteria Spatial Analysis: 81 Chapter 8FLOOD ANALYSIS 82 8.1 Results: 82 8.1.1Preparation of 3-D View Maps: 86 8.2.23-D View of Study Area: 87 Chapter 9EMERGENCY RESPONSE SYSTEM 88 9.1 Introduction: 88 9.2 Definition of Emergency 89 9.3 Types of Emergencies: 89 9.3.1Danger of life: 89 9.3.2Danger to health: 89 9.3.3Danger to Property: 89 9.3.4Danger to the environment: 90 9.4 Emergency Services: 90 9.4.1Core emergency services: 90 9.4.2Civil Emergency Services: 91 9.5 Emergency management: 91 9.5.1Management Activities: 92 Chapter 10 EMERGENCY RESPONSE SYSTEM ANALYSIS 94 10.1 Introduction: 94 10.2 Aim: 94 10.3 Emergency Response Management System: 94 10.4 Understanding the mechanism for fire department and health services in the condition of disaster: 95 10.4.1Fire Incident facility Management: 95 10.4.2Network Analysis for the Fire incident Facility Management: 95 10.5 Flood vulnerable people resettlement: 98