FINAL ENGINEERING REPORT 09/2009 M3 SECTION: COMRAT SOUTH TO CIUMAI VOLUME 1: MAIN TEXT EUROPEAN UNION REPUBLIC OF MOLDOVA FEASIBILITY STUDY FOR THE REHABILITATION AND EXTENSION OF THE ROAD M3 CHISINAU – GIURGIULESTI/ROMANIAN BORDER Europe Aid/125919/C/SER/MD Koblenz, Germany Chisinau, Moldova Road M3 Chisinau — Giurgiulesti/ Romanian Border Extension and Rehabilitation Project Final Engineering Report: Comrat South to Ciumai REPORT COVER PAGE Project Title: Feasibility Study for the Rehabilitation and Extension of the Road M3 Chisinau - Giurgiulesti/Romanian Border Contract Number: 2008/156-690 Countries: Republic of Moldova Name: Local Recipient EC Consultant Republic of Moldova Kocks Consult GmbH & Ministry of Transport / Universinj Ltd State Road Administration Address: Bucuriei Street 12a Chisinau MD 2004 Republic of Moldova Tel. Number: +373 22 595849 +373 22 716655 Fax Number: +373 22 748850 Contact Person: Ulrich Sprick Thomas Herz Project Director Dept. Team Leader Signatures: Date of Report: August 2009 Reporting Period: June 2008 – August 2009 Author of the Kocks Consult GMBH Report: EC M & E team ______________ ______________ _____________ [name] [signature] [date] ÉU Delegation ______________ ______________ _____________ [name] [signature] [date] ______________ ______________ _____________ [name] [signature] [date] Joint Venture Kocks Consult GmbH, Koblenz – Universinj SRL, Chisinau Road M3 Chisinau — Giurgiulesti/ Romanian Border Extension and Rehabilitation Project Final Engineering Report: Comrat South to Ciumai SYNOPSIS Project Title: Feasibility Study for the Rehabilitation and Extension of the Road M3 Chisinau - Giurgiulesti/Romanian Border Project 2008/156-690 Number: Country: Republic of Moldova Project Provide a bankable technical, financial, environmental and institutional feasibility objectives: study for the rehabilitation and extension of the M3 road Chisinau-Giurgiulesti / Romanian Border. Planned • Identification of Transport Needs outputs: • Assessment of technical, environmental, financial and economic feasibility • Assessment of institutional sustainability of the road rehabilitation • Detailed Technical Surveys and Engineering Design • Coordination with International Financial Institutions • Preparation of tender documents for the rehabilitation of one or two priority sections chosen Project • Conduct of traffic surveys and traffic forecasts activities: • Technical assessment of the present infrastructure • Road condition survey • Survey of factual pavement condition • Road safety assessment (black spots) • Road maintenance standards • Present traffic management • A review of the Status of institutional development and policy reforms • Evaluation criteria based on poverty indicators for rural roads and bridges • A socio-economic analysis and environmental and social impact assessment • Cost estimates for infrastructure and maintenance costs • Economic and financial cash flow calculations • Calculation of internal rates of return and net present values • Assessment of Institutional sustainability for carrying out the necessary works and maintenance tasks • Geo-technical and topographic surveys • Soil and Materials Investigations • Preliminary Design • Detailed Drawings • Technical Specifications • Design Report • Tender documents for the rehabilitation of one or two priority sections chosen based on the Feasibility study • Road Maintenance Plan including regular and periodic maintenance • Coordination with IFIs Joint Venture Kocks Consult GmbH, Koblenz – Universinj SRL, Chisinau Road M3 Chisinau — Giurgiulesti/ Romanian Border Extension and Rehabilitation Project Final Engineering Report: Comrat South to Ciumai TABLE OF CONTENTS ABBREVIATIONS 1. INTRODUCTION AND BACKGROUND...................................................................1 1.1 . Country Background.................................................................................................1 1.2 Project Background ..................................................................................................1 1.3 The Assignment........................................................................................................3 1.4 Sections Recommended for Improvement ................................................................3 2. TRAFFIC ................................................................................................................ 4 2.1 Data Collection ........................................................................................................ 4 2.2 Base Year Traffic..................................................................................................... 6 2.3 Traffic Characteristics of the Study Road................................................................. 7 2.4 Traffic Forecasting................................................................................................... 10 2.5 Traffic Forecast Summary........................................................................................ 14 2.6 Road Safety Analysis............................................................................................... 15 2.7 M3 Chisinau – Giurgiulesti Traffic Accident Data ..................................................... 16 2.8 Traffic Accident Patterns.......................................................................................... 17 2.9 General Safety Strategies........................................................................................ 17 3. TOPOGRAPHICAL SURVEY AND MAPPING.......................................................20 4. GEOTECHNICAL INVESTIGATION.......................................................................23 4.1 Geotechnical Overview ..........................................................................................23 4.2 Geotechnical Field Investigations and Laboratory Testing ......................................24 4.3 Evaluation and Recommendation ...........................................................................25 4.4 Construction Material Sources................................................................................26 4.5 Conclusions............................................................................................................27 4.6 Earthworks .............................................................................................................27 4.7 Operations of Borrow Pits ......................................................................................31 5. PAVEMENT CONDITION AND DESIGN................................................................32 5.1 General...................................................................................................................32 5.2 Pavement Rehabilitation Options............................................................................32 5.3 Selection of Rehabilitation Measures......................................................................33 5.4 General Design Principles ......................................................................................34 5.5 Flexible Pavement Design .....................................................................................40 5.6 Recommended Thickness of Pavement Layers ......................................................42 5.7 Pavement Materials ...............................................................................................46 5.8 Road Inventory and Surface Condition ..................................................................52 5.8.1 Road Inventory .......................................................................................................52 5.8.2 Asphalt Pavement Distress.....................................................................................52 5.8.3 Road Roughness....................................................................................................54 6. BRIDGE CONDITION AND DESIGN......................................................................56 6.1 Bridge Design ........................................................................................................56 6.2 Bridges Along the Improvement Sections........................................................................57 6.3 Classification of Existing Bridge Structures.............................................................58 6.4 Culvert and Bridge Field Inventory..........................................................................58 6.5 Bridge Condition.....................................................................................................60 Joint Venture Kocks Consult GmbH, Koblenz – Universinj SRL, Chisinau Road M3 Chisinau — Giurgiulesti/ Romanian Border Extension and Rehabilitation Project Final Engineering Report: Comrat South to Ciumai 6.6 Organization of Improvement Works.......................................................................61 6.7 Monitoring during Operation Period ........................................................................63 7. HYDROLOGICAL AND DRAINAGE DESIGN........................................................65 7.1 Overview ................................................................................................................65 7.2 Carrying Capacity of drainage System....................................................................65 7.3 Location specific Characteristics.............................................................................67 8. ENVIRONMENTAL IMPACT ASSESSMENT.........................................................70