Cambodia: Preparing the Provincial Roads Improvement Project (TA 7665-CAM)
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Technical Assistance Consultant’s Report Project Number: 43309-012 October 2011 Cambodia: Preparing the Provincial Roads Improvement Project (TA 7665-CAM) Prepared by Korea Consultants International For: Ministry of Public Works and Transport This consultant’s report does not necessarily reflect the views of ADB or the Government concerned, and ADB and the Government cannot be held liable for its contents. Ministry of Public Works and Transport Asian Development Bank MINISTRY OF PUBLIC WORKS AND TRANSPORT KINGDOM OF CAMBODIA Asian Development Bank: TA No 7665-CAM Preparing the Provincial Roads Improvement Project Final Report October 2011 Korea Consultants International In association with Khmer Consultant Engineering Corporation TA 7665-CAM Preparing the Provincial Roads Improvement Project CURRENCY EQUIVALENTS (As at October 2011) Currency Unit - Riel RI 1.00 = $0.00025 $ 1.00 = RI 4,000 ABBREVIATIONS ADT Average Daily Traffic AADT Annual Average Daily Traffic ADB Asian Development Bank ADPC Asian Disaster Preparedness Centre AH Affected Household CBF Cross Border Facility CBRS Community Based Road Safety COBP Country Operations and Business Plan (ADB) COI Corridor of Impact CRC Cambodian Red Cross CRY Coalition for Road Safety AIPF Asia Injury Prevention Foundation CTA Cambodia Trucking Association DBST Double Bituminous Surface Treatment DDIS Detailed Design, Supervision and Implementation (consultants) DCP Dynamic Cone Penetrometer DOE Department of Environment DHrW Department of Hydrology and river Work (MoWRAM) DoM Department of Meteorology (MoWRAM) EA Executing Agency EIA Environmental Impact Assessment EMG Ethnic Minority Group EMP Environmental Management Plan FGD Focus Group Discussion RGC Royal Government of Cambodia GGFS Good Governance Frameworks GPS Global Positioning System GVW Gross Vehicle Weight HDM-4 Highway Development and Management Model HIB Handicap International Belgium HSEBS Household Socio-Economic Baseline Survey HSWIM High Speed Weigh-in-Motion (device) TA 7665-CAM Preparing the Provincial Roads Improvement Project IBA Important Bird Area IDC Interest During Construction IOL Inventory of Losses IP Indigenous People IEE Initial Environmental Examination IEIA Initial Environmental Impact Assessment LGAP Labor and Gender Action Plan LSWIM Low Speed Weigh-in-Motion (device) MAG Mines Advisory Group MEF Ministry of Economy and Finance MoE Ministry of Environment MoWA Ministry of Women Affairs MoWRAM Ministry of Water resource and Meteorology MPWT Ministry of Public Works and Transport MrC Mekong River Commission MRD Ministry of Rural Development MUV Manufacturers Unit Value NAA National AIDS Authority NCDM National Committee for Disaster Management NGO Non-Governmental Organization NR National Road NRSC National Road Safety Committee NRSAP National Road Safety Action Plan NTFP Non Timber Forest Products OD Origin and Destination PAM Project Administration Manual PAOCC Permanent Axle Overload Control Committee PAWS Phnom Aural Protected Landscape PDPWT Provincial Department of Public Works and Transport PDRC Provincial Disaster Reduction Committee PMU3 Project Management Unit 3 (of MPWT) PPCR Pilot Project for Climate Resilience PR Provincial Road RRP Report and Recommendation of the President of ADB PSA Poverty and Social Assessment RCVIS Road Crash & Victim Information System RGC Royal Government of Cambodia Rl Riel RCS Replacement Cost Study TA 7665-CAM Preparing the Provincial Roads Improvement Project ROW Right of Way RP Resettlement Plan RS Road Safety SBST Single Bituminous Surface Treatment SES Socio-Economic Survey SIEE Summary Initial Environmental Examination TA Technical Assistance TSBR Tonle Sap Biosphere Reserve US$ United States Dollar UNAIDS United Nations AIDS (programme) UNDMT United Nations Disaster Management Team UNICEF United Nations Children‘s Fund UNESCO United Nations Education and Scientific Cooperation Organization UXO Unexploded Ordnance WB World Bank WFP World Food Programme NOTES The fiscal year (FY) of the Government of Kingdom of Cambodia ends in December In this report, "$" or USD refers to US dollars. TA 7665-CAM Preparing the Provincial Roads Improvement Project CBF Map of Project Roads NR13 and PR314D and CBF (marked in green) iv TA 7665-CAM Preparing the Provincial Roads Improvement Project Map of Project Roads PR150B, NR53 and PR151B (marked in green) v TA 7665-CAM Preparing the Provincial Roads Improvement Project PROVINCIAL ROADS IMPROVEMENT PROJECT Executive Summary Contents 1 INTRODUCTION ....................................................................................................................... 1 2 ROAD DESIGN AND CBF ........................................................................................................ 4 2.1 SITE VISITS AND FINDINGS ON NR13 AND PR314D .............................................................. 4 2.2 SITE VISITS AND FINDINGS ON ROADS PR150B, NR53 AND PR151B .................................... 5 2.3 ROAD DESIGN ..................................................................................................................... 6 2.3.1 Road Cross-sections .................................................................................................... 7 2.3.2 Road Realignments ...................................................................................................... 9 2.3.3 Minor Adjustments Within the RoW ........................................................................... 12 2.3.4 Finished Road Levels ................................................................................................. 12 2.4 PAVEMENT DESIGN ............................................................................................................ 13 2.4.1 Subgrade .................................................................................................................... 13 2.4.2 Traffic Loading ........................................................................................................... 14 2.4.3 Pavement Design Options ......................................................................................... 14 2.4.4 Surfacing .................................................................................................................... 18 2.5 CONSTRUCTION MATERIALS ............................................................................................... 18 2.5.1 Embankment Materials .............................................................................................. 18 2.5.2 Selected Subgrade (capping layer) ............................................................................ 18 2.5.3 Sub-base .................................................................................................................... 18 2.5.4 Use of Stabilization .................................................................................................... 19 2.5.5 Availability of Cement ................................................................................................. 20 2.5.6 Availability of Lime ..................................................................................................... 20 2.5.7 Aggregate Base ......................................................................................................... 20 2.5.8 Aggregates for Surfacing ........................................................................................... 20 2.5.9 Surfacing .................................................................................................................... 21 2.5.10 Surfacing Materials .................................................................................................. 21 2.5.11 Recycling Materials .................................................................................................. 21 2.5.12 Cement Concrete Pavement .................................................................................... 22 2.6 ROAD MAINTENANCE ......................................................................................................... 23 2.7 GEOLOGY IN THE PROJECT AREAS ..................................................................................... 23 2.8 MATERIAL SOURCES FOR CONSTRUCTION OF THE SOUTHEAST ROADS ................................. 24 2.8.1 Hard aggregates ........................................................................................................ 25 2.8.2 Materials for Subgrade and Sub-base ....................................................................... 25 2.9 MATERIALS FOR THE MIDWEST ROADS ............................................................................... 26 vi TA 7665-CAM Preparing the Provincial Roads Improvement Project 2.9.1 Hard Aggregates ........................................................................................................ 26 2.9.2 Materials for Subgrade and Sub-base ....................................................................... 27 2.10 BRIDGES ....................................................................................................................... 27 2.10.1 Design Criteria ......................................................................................................... 27 2.10.2 General .................................................................................................................... 27 2.10.3 Superstructure .......................................................................................................... 27 2.11 DRAINAGE ....................................................................................................................