MALIR EXPRESSWAY PROJECT KARACHI FINAL REPORT November 2018 Malir Expressway ---- CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT Contents EXECUTIVE SUMMARY ........................................................................................................................ 5 1 INTRODUCTION ................................................................................................................... 7 1.1 Project Location & Background .................................................................................... 7 1.2 Project Objectives ............................................................................................................. 8 1.3 References & Sources of Data ....................................................................................... 9 1.4 Acknowledgements ......................................................................................................... 9 1.5 Disclaimer ............................................................................................................................ 9 2 ALIGNMENT AND COMPETITIVE ROUTES STUDY ........................................................ 10 2.1 Reconnaissance Study .................................................................................................. 10 2.2 Start Point ........................................................................................................................... 10 2.3 Interchanges En-route ................................................................................................... 11 2.4 End Point ............................................................................................................................. 11 2.5 Link to KPT .......................................................................................................................... 12 2.6 Competitive Routes and Distance Savings Via Malir Expressway ..................... 12 2.7 Alignment Data of Malir Expressway ......................................................................... 13 3 TRAFFIC STUDY .................................................................................................................. 14 3.1 Approach & Methodology ............................................................................................ 14 3.2 Overview of Previous Studies ....................................................................................... 14 3.3 Main Access Routes for Karachi ................................................................................. 16 3.4 Future Land Use Plan - 2030 .......................................................................................... 17 3.5 Analytical Framework & Underlying Assumptions ................................................. 17 3.6 Analysis Scenario – 1: ..................................................................................................... 18 3.7 Analysis Scenario – 2: ..................................................................................................... 18 3.8 Analysis Scenario – 3: ..................................................................................................... 19 3.9 Special Traffic Generators for Malir Expressway Project ...................................... 20 3.10 Town areas to be served by Malir Expressway: ...................................................... 20 3.11 Data Collection ................................................................................................................ 21 3.12 Historic Traffic Data ......................................................................................................... 21 3.13 Fresh Traffic Surveys ........................................................................................................ 22 3.14 Data Analysis .................................................................................................................... 22 FR MEW 042019.doc 1 CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT 3.15 Traffic on the Existing Network ..................................................................................... 22 3.16 Travel Demand Forecast for Malir Expressway ....................................................... 22 3.17 Traffic Growth Rates Applied ........................................................................................ 23 3.18 Projected Traffic ............................................................................................................... 23 3.19 Capacity Analysis ........................................................................................................... 27 3.20 Impact on Traffic Conditions on the Urban Road Network .................................. 27 4 Soil And Geotechnical Investigations ....................................................................... 28 4.1 Program of Investigations .............................................................................................. 28 4.2 Classification of Sub-grade Soil ................................................................................... 29 4.3 Compaction & California Bearing Ratio (CBR) of the Sub-grade Soil: ............. 31 4.4 Conclusions For Sub-grade Soil Samples ................................................................. 32 4.4.1 Grain Size Analysis: ......................................................................................................... 32 4.4.2 Atterberg Limits: ............................................................................................................... 32 4.4.3 Soil Classification: ............................................................................................................ 32 4.4.4 Fine Aggregate: ............................................................................................................... 32 4.4.5 California Bearing Ratio: ................................................................................................ 32 4.5 Suitability as Fill Material: .............................................................................................. 33 4.6 Deep Soil / Geotechnical Investigations for Bridge Foundations ...................... 33 4.7 Laboratory Testing: .......................................................................................................... 34 4.8 Geological History & Formation: ................................................................................. 34 4.9 Seismicity of the Region: ............................................................................................... 35 4.10 Subsurface Characteristics: .......................................................................................... 35 4.10.1 General Stratification:..................................................................................................... 35 4.10.2 Ground Water Table:....................................................................................................... 36 4.11 Foundation Recommendations: .................................................................................. 37 4.11.1 General: ............................................................................................................................. 37 4.11.2 Foundation Type: ............................................................................................................. 37 4.11.3 Pile Foundations: .............................................................................................................. 37 4.11.3.1 Pile Input Data: ................................................................................................................. 37 4.11.4 Pile Length & Allowable Capacity: ............................................................................. 37 4.12 General Considerations for Pile Foundations:- ....................................................... 38 FR MEW 042019.doc 2 CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT 4.13 Allowable Bearing Capacity for Retaining Walls: .................................................. 39 4.14 Seismic Coefficients:....................................................................................................... 39 4.15 Cement Type: ................................................................................................................... 40 5 Hydrology And Hydraulic Studies ............................................................................... 41 5.1 Historic Flood .................................................................................................................... 41 5.2 Estimated Peak Discharge ............................................................................................ 41 5.3 Existing Situation at Malir River Floodplain ............................................................... 42 5.4 River Hydraulics................................................................................................................ 43 5.5 Hydraulic Calculations at Cross Sections ................................................................. 44 6 Design Standards And Criteria .................................................................................... 47 6.1 Design Standards ............................................................................................................. 47