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Version 2.0 Revised: February 12, 2009

TABLE OF CONTENTS
Chapter 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. INTRODUCTION DESIGN POLICIES AND STANDARDS DESIGN CONTROLS ELEMENTS OF DESIGN ROADSIDE SAFETY AND HORIZONTAL CLEARANCE CROSS SECTION ELEMENTS AT GRADE INTERSECTIONS GRADE SEPARATED INTERCHANGES – UNDER DEVELOPMENT STRUCTURES - UNDER DEVELOPMENT QUANTITIES – UNDER DEVELOPMENT OTHERPROJECT TYPES STAGE CONSTRUCTION – UNDER DEVELOPMENT TRAFFIC FORECASTING AND ANALYSIS LIGHTING RESOURCES Glossaries References Implementation 5/21/2007 5/21/2007 5/21/2007 Revision 11/17/2008 5/21/2007 11/17/2008 2/12/2009 2/12/2009 2/12/2009 2/12/2009 TBD TBD TBD 5/21/2007 TBD 5/21/2007 2/12/2009

GDOT Design Policy Manual ver. 2.0 Revised 02/12/2009

Introduction

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Chapter 1Contents 1. Introduction
1.1. Purpose 1.2. Organization 1.3. Guidance 1.4. Acknowledgements 1.5. Contact 1.6. Manual Updates 1.7. Project Review and Submission Requirements

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GDOT Design Policy Manual ver. 2.0 Revised 11/17/2008

Chapter 1 Contents

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1. INTRODUCTION
1.1. Purpose
The GDOT Design Policy Manual was created by committee with representatives from the GeorgiaDepartment of Transportation (GDOT), the Federal Highway Administration (FHWA), and the consultant community, and is intended to be a general reference of design policies required for the preparation of roadway construction plans for the GDOT. The GDOT Design Policy Manual contains the primary design policy for the Georgia Department of Transportation. The American Association of State Highway andTransportation Officials (AASHTO) policies are the basis for the criteria provided in this Manual. This Manual supplements AASHTO policies and in some cases specifies more conservative criteria than AASHTO. The GDOT Design Policy Manual was written primarily for the benefit of GDOT personnel as well as private consultants who provide professional services to GDOT. It may also benefit counties,cities, towns, or other local governmental agencies on issues related to the design of roadways within their respective jurisdictions. Every effort has been made to make this Manual as complete and error free as possible.

1.2. Organization
The Georgia Department of Transportation (GDOT), constructs, maintains and improves the state's roads and bridges; provides planning and financial support forother modes of transportation such as mass transit and airports; provides airport and air safety planning; and provides air travel to state departments. GDOT also provides administrative support to the State Road and Tollway Authority (SRTA) and the Georgia Regional Transportation Authority (GRTA). GDOT is supervised by the State Transportation Board and an appointed Transportation Commissioner.GDOT’s Mission statement is: The Georgia Department of Transportation provides a safe, seamless and sustainable transportation system that supports Georgia’s economy and is sensitive to its citizens and environment. The Georgia Department of Transportation Organization Chart can be found at: www.dot.ga.gov/aboutGeorgiadot/Pages/default.aspx The primary division that has an impact on the roadwaydesign process is the Division of Preconstruction. The mission of this division is to develop a quality set of right of way plans, construction plans, and bid documents, through a cooperative effort, that results in a project design and implementation that is the best transportation value for the taxpayers of Georgia. Offices under the Division of Preconstruction are:      Office of Road DesignOffice of Right-of-Way Office of Environment/Location Office of Urban Design Office of Bridge Design Introduction 1-1

GDOT Design Policy Manual ver. 2.0 Revised 11/17/2008

1.3. Guidance
The following definitions offer guidance for interpreting policy statements found in the GDOT Design Policy Manual: May – The use of the word “may” indicates a permissive condition. Under this condition,...
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