LOCAL GOVERNMENT DEPARTMENT GOVERNMENT OF SINDH MALIR EXPRESSWAY PROJECT KARACHI FINAL REPORT October 2019 Malir Expressway ---- CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT Contents EXECUTIVE SUMMARY ........................................................................................................................ 4 1 INTRODUCTION ................................................................................................................... 6 1.1 Project Location & Background .................................................................................... 6 1.2 Project Objectives ............................................................................................................. 7 1.3 References & Sources of Data ....................................................................................... 8 1.4 Acknowledgements ......................................................................................................... 8 1.5 Disclaimer ............................................................................................................................ 8 2 ALIGNMENT AND COMPETITIVE ROUTES STUDY .......................................................... 9 2.1 Reconnaissance Study .................................................................................................... 9 2.2 Start Point ............................................................................................................................. 9 2.3 Interchanges En-route ................................................................................................... 10 2.4 Required Configuration Of Interchanges/intersection ......................................... 11 2.5 End Point ............................................................................................................................. 14 2.6 Link to KPT .......................................................................................................................... 14 2.7 Competitive Routes and Distance Savings Via Malir Expressway ..................... 14 2.8 Alignment Data of Malir Expressway ......................................................................... 15 3 TRAFFIC DATA AND ANALYSIS ...................................................................................... 16 3.1 Approach & Methodology ............................................................................................ 16 3.2 Overview of Previous Studies ....................................................................................... 16 3.3 Analytical Framework & Underlying Assumptions ................................................. 20 3.4 Data Collection ................................................................................................................ 24 3.5 Data Analysis .................................................................................................................... 24 3.6 Conclusion......................................................................................................................... 30 4 Soil and Geotechnical Investigations ....................................................................... 33 4.1 Program of Investigations .............................................................................................. 33 4.2 Classification of Sub-grade Soil ................................................................................... 34 4.3 Compaction & California Bearing Ratio (CBR) of the Sub-grade Soil: ............. 36 4.4 Conclusions For Sub-grade Soil Samples ................................................................. 37 4.5 Suitability as Fill Material: .............................................................................................. 38 4.6 Deep Soil / Geotechnical Investigations for Bridge Foundations ...................... 38 1 CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT 4.7 Laboratory Testing: .......................................................................................................... 39 4.8 Geological History & Formation: ................................................................................. 39 4.9 Seismicity of the Region: ............................................................................................... 40 4.10 Subsurface Characteristics: .......................................................................................... 40 4.11 Foundation Recommendations: .................................................................................. 42 4.12 General Considerations for Pile Foundations:- ....................................................... 43 4.13 Allowable Bearing Capacity for Retaining Walls: .................................................. 44 4.14 Seismic Coefficients:....................................................................................................... 44 4.15 Cement Type: ................................................................................................................... 45 5 Hydrology and Hydraulic Studies ............................................................................... 46 5.1 Historic Flood .................................................................................................................... 46 5.2 Estimated Peak Discharge ............................................................................................ 46 5.3 Existing Situation at Malir River Floodplain ............................................................... 47 5.4 River Hydraulics................................................................................................................ 48 5.5 Hydraulic Calculations at Cross Sections ................................................................. 49 6 Design Standards And Criteria .................................................................................... 52 6.1 Design Standards ............................................................................................................. 52 6.2 Design Criteria .................................................................................................................. 53 6.3 Design Life .......................................................................................................................... 54 6.4 Pavement Design ............................................................................................................ 54 6.5 Embankment Design ...................................................................................................... 54 6.6 Protection Works .............................................................................................................. 55 7 Topographic Survey ....................................................................................................... 56 7.1 Mobilization of Survey Teams ....................................................................................... 56 7.2 Adopted Methodology .................................................................................................. 56 7.3 Pegging & Monument Fixing ........................................................................................ 56 7.4 Primary Control by GPS for X,Y,Z ................................................................................. 57 7.5 Secondary Horizontal Control by Traverse for X,Y ................................................. 57 7.6 Secondary Vertical Control by Double Leveling Technique for “Z” .................. 58 7.7 Detailed Topographic Survey ...................................................................................... 58 7.8 Riverine Survey by X-Section Method ....................................................................... 59 2 CONSULTANCY / TRANSACTION ADVISROY SERVICES FOR DEVELOPMENT OF MALIR EXPRESSWAY (From Motorway, M9 to KPT Interchange) FINAL REPORT 7.9 Post Processing of Field Data, Site Verification, Drafting and Plotting .............. 60 8 Preliminary Design .......................................................................................................... 61 8.1 Preliminary Alignment .................................................................................................... 61 8.2 Typical Cross Sections .................................................................................................... 61 8.3 Electrical Works ................................................................................................................ 61 8.4 Tolling System And Electronic Toll And Ticketing System-ETTMS ........................ 61 8.5 Components Of ETTMS ................................................................................................... 62 8.6 Weigh Bridges And Control Buildings ........................................................................ 62 8.7 Identification of Land Strips ........................................................................................... 63 8.8 Coordination with Utility Agencies ............................................................................. 69 9 Preliminary Cost Estimate .............................................................................................. 70 9.1 Basis of Cost Estimation .................................................................................................. 70 9.2 Project Components Included in Cost Estimation .................................................