AASHTO GREEN BOOK 2011
Duplication is a violation of applicable law. v Highway Subcommittee on Design – Vacant, Chair RICHARD LAND, California, Vice Chair David A. AASHTO A Policy on Geometric Design of Highways and Streets (Green Book, edition). Note that deviations from criteria contained in the standards for. Policies for use, design exceptions, flexibility. ▫ What's changed in the Green Book. ▫ Questions & Answers. 3. The AASHTO Green.
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A Policy on Geometric Design of Highways and Streets, (The Green Book) 6th Edition on yazik.info and Streets, (The Green Book) 6th Edition Paperback – November 16, Roadside Design Guide by AASHTO Paperback $ A Policy on Geometric Design of Highways and Streets, Front Cover · American AASHTO, - Business & Economics · 0 Reviews Green book. AASHTO a Policy on Geometric Design of Highway and Streets 6th Ed ( Green Book) - Ebook download as PDF File .pdf) or read book online. AASHTO a.
Fundamentals of Crash Risk and Measurement 3. Relationship of Volume to Frequency 3. Crash Types and Severity 3. Crash Risk and Speed 3. Crash Risk by Context Conditions 3. Sight Distance 4.
Stopping 4. Passing 4.
Intersection 4. Decision 4. Maneuver 4. Horizontal Alignment 4. Superelevation 4.
Design Rates by Context 4. Runoff and Runout 4. Spiral Transitions 4. Vertical Alignment 4. Grades Maximum and Minimum 4. Vertical Curvature Crest, Sag 4.
Coordination of Horizontal and Vertical Alignment 4. Operational Effects of Combinations of Alignment 4.
Drainage and Maintenance Effects of Combinations of Alignment 4. Cross-Section Elements 4.
Traveled Way Lanes and Lane Width 4. Shoulders Width and Type 4. Medians Width and Type 4. Lateral Offset 4. Curbs 4.
Maintenance Needs Within the Cross Section 4. Drainage, Erosion Control, and Landscaping 4. Lighting 4. Utilities 4. Introduction 5. Importance of Speed and Speed Control 5. Integration of Traffic Control 5.
General Design Considerations 5. Trade-offs in Allocation of Available Width 5. Intersection Type and Context 5. Needs of Road Users 5. Intersection Capacity and Operations 5. Intersection Crash Risk 5. Intersection Types 5. Number of Legs 5.
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Type of Traffic Control 5. Alignment and Profile Design 5. Lanes and Lane Width 5. Intersection Sight Distance 5. Turning Roadways and Channelization 5. Left-Turn Lane s 5. Right-Turn Lane s 5. Auxiliary Lanes 5.
Medians and Median Openings 5. Operational Solutions to Intersection Problems e. Design Solutions to Intersection Problems 5. Indirect Left Turns and U-turns 5. Wide Medians and U-turn Crossover Designs 5. Continuous Flow Intersections 5.
Geometric Elements of Roundabouts 5. Types of Interchanges 6. Service Interchanges 6. System Interchanges 6. Types of Ramps 6. Access Control 6. Traffic Operations 6. Safety 6. Emergency Services 7. Step 1: Define the Transportation Problem or Need 8. Project Types and Their Needs 8. Agency Policies and Priorities and Needs Definitions 8.
Internal Stakeholders 8. Step 3: Develop the Project Scope 8. New Construction 8. Reconstruction 8. Establish Decision-Making Roles and Responsibilities 8. Determine Basic Geometric Design Controls 8. Step 7: Designing the Geometric Alternatives 8. Step 9: Transition to Preliminary and Final Engineering 8.
Internal Stakeholders 9. External Stakeholders 9.
Step 3: Develop the Project Scope 9. Establish Decision-Making Roles and Responsibilities 9. Determine Basic Geometric Design Controls 9. Step 7: Designing the Geometric Alternatives 9.
Step 9: Transitioning to Preliminary and Final Engineering 9. Introduction Expected Performance Operational, Safety Recommended Design Values Horizontal Alignment Vertical Alignment Cross-Section Elements Sufficient flexibility is permitted to encourage independent designs tailored to particular situations. The larger values within the ranges will normally be used where the social, economic, and environmental S.
Page Highlights the flexibility available to encourage choosing design criteria: Minor arterials therefore constitute routes that should provide for relatively high travel speeds and minimum interference to through movement consistent with the context of the project area and considering the range or variety of users [pg ]. Designers should recognize the implications of this sharing of the transportation corridors and are encouraged to consider not only vehicular movement, but also movement of people, distribution of goods, and provision of essential services.
A more comprehensive transportation program is hereby emphasized. Above-minimum design values criteria for specific design elements should be used, where practical, particularly on high-speed facilities. On lower speed facilities, use of above- minimum design criteria may encourage travel at speeds higher than the design speed.
Lane widths of 10 ft Lane widths of 11 ft The ft lane widths are most desirable and should be used, where practical, on higher speed, free-flowing, principal arterials. Passenger vehicles parked adjacent to a curb will occupy, on the average, approximately 7 ft Therefore, the total parking lane width for passenger cars should be 10 to 12 ft Therefore, the total parking lane width for passenger cars should be 7 to 10 ft In urban areas where pedestrian crossings, right-of-way, or existing development become stringent controls on lane widths, the use of 3.
Added discussion about use of minimum radii and lengths of horizontal curves [pg ] Medians: The type of arterial selected is closely related to the level of service desired for all users and urban context in which it is located. Relationship between Design Speed and lane widths [10 ft The left and right shoulder widths may be reversed if needed to provide additional sight distance.
Jeff C. Jones, P. Polk Bldg. Nashville, TN jeff. Flag for inappropriate content. Related titles. Jump to Page. Search inside document.
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Unique combinations of design controls and constraints call for unique design solutions Foreword, p. Minor arterials therefore constitute routes that should provide for relatively high travel speeds and minimum interference to through movement consistent with the context of the project area and considering the range or variety of users [pg ] Urban: Jaciel Castro. Yarima Morales. Adnan Riaz. Mohammad Saleem Zahidi. Anonymous IwqK1Nl. Didi Gi.
Elle S. Hirrah Nadeem. Nwe Oo.Cross Section Including Roadside 2. Vertical Curvature Crest, Sag 4. On lower speed facilities, use of above- minimum design criteria may encourage travel at speeds higher than the design speed. Juriansyah Batola. B: reasonably free flow. Expected Performance Operational, Safety Department of.
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