INDEX. Geometric Design Guide for Canadian Roads INDEX

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "INDEX. Geometric Design Guide for Canadian Roads INDEX"

Transcription

1 Acceleration lane, see Lanes, Acceleration Access, 8.1 Access Management and Functional Classification 8.2 Access Management by Design Classification 8.3 Access Configuration 8.4 Building Set-Back Guidelines Culs-De-Sac 8.10 Continuous Right-Turn Auxiliary Lanes on Divided Arterials 8.5 Corner Clearances at Major Intersections 8.8 Driveways 8.9 Service (Frontage) Roads 8.7 Signalized Access Spacing Two-Way Left-Turn Lanes 8.6 Pedestrian and Cyclist Considerations Active Transportation, Bicycle Accommodation 5.3 Accommodating All Users at Intersections Pedestrian Accommodation See Bicycles and Pedestrians Aesthetics Environmental Impacts and Aesthetics, Lane Aesthetics 3.4 Alignment Consistency, Horizontal Alignment 3.2 Circular Curves Spiral Curves Superelevation Lane Widening on Curves Vertical Alignment 3.3 Grades Vertical Curves Sight Distance at Underpasses see Sight Distance Lane Continuity Route Continuity Weaving Approach Taper, see Taper Arterial roads, June

2 Auxiliary lanes, , 8.5 Barriers, Traffic Basis for Design Roadside Barriers Zone of Intrusion Median Barriers Bridge Railings/Transitions End Treatment/Crash Cushions Bay Taper, see Taper Benefit Cost Analysis, 1.2 Policy Considerations Design Decisions Benefits of Roads, 1.3 Mobility All Modes Motorized Traffic Active Transportation Bicycles, Design for, 5.1 Alignment and Related Elements 5.5 Bikeway Facility Types 5.3 Bikeway Facility Selection 5.4 Design Integration Design Needs 5.2 Intersection Elements 5.6 Pedestrians Safety and Security Borders, see Sidewalks, Boulevards, and Border Areas Boulevards, see Sidewalks, Boulevards, and Border Areas Brake Reaction Distance, see Sight Distance, stopping Braking distance, Breakaway Supports, Bridges, 4.10 Roads under Bridges Roads on Bridges Multi-Modal Configurations Pedestrian Accommodation Vertical Clearances Building Setback, see Access Bus Bays, , Car, see Vehicle Characteristics Centreline Rumble Strips, June 2017

3 Channelization, see Intersections Classification, see Design Classification, Road Clear Runout Area, see Trucks, Escape Ramps Clear Zone, 7.3 Clearance, At Bridges, see Bridges At Corners, see Intersections For Bicycle Lanes see Bicycles, Alignment and Related Elements Climbing Lanes, see Lanes, Truck Climbing Lanes Collisions, see Safety Collision Modification Factors, see Safety Collector Roads, Corner Radius, Costs of Roads, 1.3 Benefit Cost Analysis 1.2 Collision Costs Design Choices Road Safety Audits Capital Costs Maintenance Costs Vehicle Operating Costs Critical Length of Grade, see Vertical Alignment, Grade Critical Slope, see Slopes Cross Section Elements, 4.1 Cross-Slopes, 3.5, 4.8.4, Shoulder Cross Slopes Cross-Slope: Major/Minor Roadway Intersection, Crosswalks, Crown Cross-Slope: Major/Minor Roadway Intersection, Culs de sac, 2.6.4, 8.10 Culverts, see Drainage Curbs and Gutters, 4.7, Curb Extensions, Curves, see Alignment, Horizontal Deceleration Lane, see Lanes, Deceleration Decision Sight Distance, see Sight Distance Departure taper, see Taper Design Classification, Road, 2.6 Design Classification System June

4 Classification Factors Land Use Service Function Traffic Volume Flow Characteristics Operating Speed Vehicle Type Connections Characteristics of Classifications Design Consistency, 2.7 Cross Section Operating Speed Driver Workload Safety and Consistency Design Controls, 2.1 Design Domain, 1.4 Description Application Extending the Design Domain Design Exceptions, 1.5 Key Criteria Design Exception Process Design, Human Factors and, Design User Capabilities and Limitations Visual Characteristics Cognitive Abilities Perception-Reaction Time 2.2.3, Design Speed, see Speed Design Vehicles, 2.4 Bicycles Classification Characteristics Length, Width, and Turning Radius Vehicle Height Driver Eye Height Turning Paths Selecting a Design Vehicle Desired Speed, see Speed, Terminology Divided Roadway See Typical Cross Sections June 2017

5 Drainage, 4.8 see also Cross-Slope Grades Rural Drainage Channels Urban Storm Drainage 4.8.3, Cross Slope Drainage Features Driver Workload, see also Human Factors Driver Workload and Speed Driver Workload Consistency Driveways, see Access Emergency vehicle crossings, Encroachment, Energy attenuation devices, see Barriers, Traffic Entrance terminal, Exit terminal, Express-Collector system, Expressways, Environmental Impacts and Aesthetics, Explicit Evaluation of Safety, 3.2.7, 4.1.8, 7.2 Bridge width Freeway Medians Horizontal Curves Median Barrier and Width Shoulder Rounding Truck Climbing and Passing Lanes Truck Escape Ramps 3.10 Two-way Left-Turn Lanes Utility Pole Placement Vertical Curves False Grading, Fencing, 4.6.3, 6.5.5, Flared intersections, see Intersections Forgiving roadside, Freeways, Friction Coefficient of Lateral Frontage road, see Service Roads June

6 Geometric Design, 1.1 Alignment 3.1 Collision Types and Geometric Design Design Domain 1.4 Design Exceptions 1.5 Standards and Guidelines Use of, Goal of Design Concept of Safety Managing Design Risk Evolution of Design Rehabilitation Design Value Engineering and Geometric Design Gradient Access Bicycles Intersections , Separated for Bikeways Grading, see Drainage Guardrail, see Barriers, Traffic Guidance, Positive, , Guiderail, see Barriers, Traffic Gutters, see Curbs and Gutters Human Factors, 2.2 Driver Expectancy Motivations and Deterrents to Walking Perception Reaction Time 2.2.3, Design, Human Factors and Bicycling Cognitive Abilities Curves Driver Workload , Design User Intersections User Capabilities and Limitations Visual Characteristics Perception-Reaction Time Weaving Inlets, see Drainage Interchanges, June 2017

7 Co-ordination of Interchanges 10.4 Design Features Bus Interface Loop Ramps Over Versus Under Return Movement Single Exit Uniformity of Patterns and Design Consistency Pedestrian Accommodation Interchange Warrants 10.2 Interchange Location and Spacing 10.3 Other Interchange Design Features 10.7 Ramps 10.6 Typical Interchange Design Features 10.8 Intersections, 9.1 AASHTO Intersection Sight Distance Model 9.9 Accommodating All Users Alignment 9.7 At-Grade Highway/Railway Crossings 9.5 Bike Lanes Circular Channelized , 9.15 Design Process 9.4 Flared Human Factors Innovative Intersections 9.22 Left-Turn Lanes 9.17 Median Openings 9.19 On Curves Open-Throat Safe System Approach Sight Distance 9.8 Spacing Types of Intersections 9.2 Road Design Considerations 9.3 Tapers and Auxiliary Lanes 9.14 Transition between Four-Lane and Two-Lane Roadways at Intersections 9.18 Turning Roadways 9.16 Roundabout Design 9.20 Roundabout Types and Characteristics 9.21 Islands, Traffic, 8.9, June

8 K value, Landscaping, 6.5.7, 7.5.9, Lane Drop, see Lane Balance Lanes Basic Lanes , , , Design, Lane Aesthetics 3.4 Lane Balance Lane Coordination 3.4 Lane and Route Continuity 3.7 Lane Width 4.2 Special Purpose Lanes 4.3 Auxiliary lanes , 8.5 Acceleration and Deceleration Lanes Bike Lanes Continuous Right-Turn or Left-Turn Lane for Access , 8.5 Express Collector Systems Left-Turn Lanes Left-Turn Slip-Around Lane Other Special Purpose Lanes Parking Lanes Passing and Climbing Lanes 3.9, Ramps Right-Turn Lanes Slot Left-Turn Lanes Speed Change Lanes , Transit Lanes Turning Roadways Two-Way Left-Turn Lanes 8.6 Service or Frontage Road Lanes , 8.7 Weaving Lanes Truck Climbing Lanes 3.8 Lateral Friction, see Friction, Lateral Left-turn lane, see Lanes, Left-Turn Level of Service, Lighting Alignment Bicycle facilities 5.7.2, Interchanges Intersections Pedestrian Facilities June 2017

9 Roadside 7.5 Local roads, Luminaire supports, Median Openings, Medians and Outer Separations, 4.5 Mobility, Normal Crown, see Crown Non-Recoverable Slope, see Slopes Object Height, see Sight Distance Operating Speed, Consistency Prediction Outer Separations, Overpasses, see Bridges Passenger Car, see Vehicle Characteristics Passing Lanes, see Lanes Pavement Edge Drop, Pavement Widening, see Alignment, Lane Widening on Curves Pedestrian Design 6.1 Design Needs 6.2 Integration with Related Geometric Design Elements 6.6 Pedestrian Crossings 6.4 Pedestrian Elements and Details 6.5 Pedestrians with Disabilities , Refuge Islands Roadside Zones Framework 6.3 Persons with Disabilities, Posted Speed, 2.3.2, Public Lanes (alleys), 2.6.2, 4.13 Railway Grade Crossings, 9.5 Ramps Alignment, see Interchange, Ramps Bicycle , Metering Sidewalk Terminals, see Entrance Ramps and Exit Terminals June

10 Truck Escape, see Trucks, Escape Ramps Width Recoverable Slope, see Slopes Rehabilitation Design, Retrofit Bicycle Accommodation 5.3 Complete Streets Driveway Spacing 8.9.8, Horizontal Alignment 3.2 Intersections 9.2.3, 9.4.5, Pedestrian Accommodation 6.4 Roadway and Lane Widening 3.2.5, 3.9 Speed Reduction Traffic Calming Vertical Alignment 3.3, Right Turn Lanes, see Lanes, Right turn Right Turn Taper, see Taper Rights of Way Designing for Future Widening 4.12 Road classification, see Design Classification, Road Road Costs, see Costs of Roads Road Network, 2.6 Road Safety Audits, see Safety, Road Safety Audits Roadside Safety, 7.1 Clear Zone Concept 7.3 Applying the Clear Zone 7.4 Sign, Luminaire, and Other Support 7.5 Traffic Barriers 7.6 Urban Environments 7.7 Low Volume Rural Roads 7.8 See also Explicit Evaluation of Safety Roadside Slopes, Roadside Vegetation, see Landscaping Rotary intersection, see Roundabouts Roundabouts Bikeway Facilities at Design Principles 9.20 Pedestrian Integration Types and Characteristics 9.21 Rumble Strips, see Centreline Rumble Strips Running Speed, see Speed, Terminology 10 June 2017

11 Safety, Bicycle Safety Safety Performance Function Safety Performance Measures Collision Modification Factors Collision Types and Geometric Design Safety in Road Design Pedestrians 6.6 Road Safety Audits See also Explicit Evaluation of Safety Service (frontage) Roads, Shoulders, 4.4 Shy-line offset, Side slopes, see Roadside Slopes Sidewalks, Boulevards, and Border Areas, 4.6 See also Pedestrian Design Sight Distance 2.5 At intersections, see Intersections Calculating Criteria Object Height Deceleration Rate Sight Distance at Underpasses Stopping Sight Distance Passing Sight Distance Decision Sight Distance Sight Triangle, Signals, see Traffic Signals Signs Human Factors Streetscaping Supports 7.5 Slopes Critical Cross, see Cross-Slopes Non-Recoverable Recoverable Roadside, see Roadside Slopes Slot left turn lanes, see Lanes, Left-Turn Snow, 4.9, Standards and Guidelines, About, June

12 Speed, 2.3 Terminology Speed, Safety and Design Speed Cues Used to Select Speed Peripheral Vision Information Noise Level Speed Adaptation Road Message Speed Limit Driver Workload and Speed Limitations of Design Speed Approach see Capabilities and Limitations Design Domain: Design Speed Selection General Application Heuristics Rural Highways Urban Roadways Design Speed Choices for Rehabilitation Projects Design Domain: Target Speed Selection Speed-Change lane, see Lanes, Speed-Change Speed Profile model, Speed-Radius Relationship, Spiral Parameter, Staged Construction, 4.1.1, Stopping Sight Distance, see Sight Distance Storage Length, Street Hardware and Furniture, see Utilities Superelevation Bicycles Intersections 9.7.5, Roadways , Tapers Tapers and Auxiliary Lanes 9.14 Approach and Departure Tapers See also Intersections, Basic Types Target Speed, see Speed Transit Bus Bays , Bus Interface at Interchanges Pedestrian Integration with Transit Lanes June 2017

13 Traffic Circle, see Roundabouts Traffic Signals Bicycles , Controls 9.8 Spacing and Progression Supports Trees, see Landscaping Trucks Escape Ramps 3.10 Climbing Lanes, see Lanes See also Vehicle Characteristics Turning Paths, see Vehicle Turning Paths Turning roadway, 9.16, see also Lanes and Ramps Typical Cross Sections, 4.13 Underpasses, see Bridges Undivided Roadways, See also Typical Cross Sections Utilities and Placement, 4.11, 6.5.3, Value Engineering, Vegetation, see Landscaping Vehicle Characteristics, Vehicle Turning Paths, Vertical Alignment, see Alignment Vertical Curves, see Alignment, Vertical Curves Weaving, Weaving Lane, see Lanes, Weaving June

What Is a Complete Street?

What Is a Complete Street? Session 5 Charleen Zimmer, AICP, Zan Associates May 5-7, 2010 What Is a Complete Street? May 2010 5-1 Not a Complete Street More of a Complete Street May 2010 5-2 Benefits of Complete Streets Safety for

More information

Chapter 3 - Local Urban Road System CHAPTER 3 LOCAL URBAN ROAD SYSTEM

Chapter 3 - Local Urban Road System CHAPTER 3 LOCAL URBAN ROAD SYSTEM CHAPTER 3 LOCAL URBAN ROAD SYSTEM 3.0 INTRODUCTION As in Chapter 2 for the local rural road system, the local urban road system also utilizes the concepts of land use context, functional classification

More information

WYDOT DESIGN GUIDES. Guide for. Non-NHS State Highways

WYDOT DESIGN GUIDES. Guide for. Non-NHS State Highways WYDOT DESIGN GUIDES Guide for Non-NHS State Highways 2014 GUIDE FOR Non-NATIONAL HIGHWAY SYSTEM (Non-NHS) STATE HIGHWAYS PRESERVATION REHABILITATION RECONSTRUCTION INTRODUCTION This Guide is directed to

More information

Roadway Design Manual

Roadway Design Manual Roadway Design Manual Manual Notice Archive by Texas Department of Transportation (512) 302-2453 all rights reserved Manual Notice 2009-1 From: Manual: Mark A. Marek, P.E Roadway Design Manual Effective

More information

Design Criteria. Design Criteria

Design Criteria. Design Criteria F Design Criteria Design Criteria Ministry of Transportation Ministère des Transports DESIGN CRITERIA Page: 1 of 13 WORK PROJECT NO. N/A GO Bloomington Station TYPE OF PROJECT LOCATION Bloomington Road

More information

Geometric Design Tables

Geometric Design Tables Design Manual Chapter 5 - Roadway Design 5C - Geometric Design Criteria 5C-1 Geometric Design Tables A. General The following sections present two sets of design criteria tables - Preferred Roadway Elements

More information

Figure 1: Graphical definitions of superelevation in terms for a two lane roadway.

Figure 1: Graphical definitions of superelevation in terms for a two lane roadway. Iowa Department of Transportation Office of Design Superelevation 2A-2 Design Manual Chapter 2 Alignments Originally Issued: 12-31-97 Revised: 12-10-10 Superelevation is the banking of the roadway along

More information

CHAPTER 3A. GENERAL PAGE CHAPTER 3B. PAVEMENT AND CURB MARKINGS PAGE

CHAPTER 3A. GENERAL PAGE CHAPTER 3B. PAVEMENT AND CURB MARKINGS PAGE Virginia Supplement to the 2009 MUTCD Revision 1 Page TC-3-1 PART 3. MARKINGS CHAPTER 3A. GENERAL PAGE Section 3A.01 Functions and Limitations Section 3A.02 Standardization of Application Section 3A.03

More information

GDOT Cross Section Elements. Course ID: GDOT PDH Credits

GDOT Cross Section Elements. Course ID: GDOT PDH Credits GDOT Cross Section Elements Course ID: GDOT-01 2 PDH Credits Civil Engineer Educators LLC 1026 Timberwolf Lane Juneau, AK 99801 Email: support@civilpdh.com Chapter 6 Contents 6. CROSS SECTION ELEMENTS

More information

CHECKLIST 2: PRELIMINARY DESIGN STAGE AUDIT

CHECKLIST 2: PRELIMINARY DESIGN STAGE AUDIT CHECKLIST 2: PRELIMINARY DESIGN STAGE AUDIT 2.1 General topics 2.1.1 Changes since previous audit Do the conditions for which the scheme was originally designed still apply? (for example, no changes to

More information

Traffic Control Inspection Checklist Segment:

Traffic Control Inspection Checklist Segment: Traffic Control Inspection Checklist Segment: Simon Contractors Simon Contractors Originator: Description Reviewed by: Initials Date Distribution: Traffic Quality Manager, Site Assistant Traffic Manager

More information

INTERSECTIONS AT GRADE INTERSECTIONS

INTERSECTIONS AT GRADE INTERSECTIONS INTERSECTIONS 1 AT GRADE INTERSECTIONS INTERSECTIONS INTERSECTIONS = INTERRUPTED FACILITIES Definitions and key elements An intersection is defined as an area where two or more roadways join or cross.

More information

Chapter 4 On-Road Bikeways

Chapter 4 On-Road Bikeways Chapter 4: 4-1.0 Introduction On-Road Bikeways This chapter provides guidelines to help select and design safe on-road bikeways. On-road bikeways include bicycle lanes, shared lanes, shoulders, and wide

More information

Clear Zone Conflicts in AASHTO Publications

Clear Zone Conflicts in AASHTO Publications Clear Zone Conflicts in AASHTO Publications Dick Albin Washington State Department of Transportation Presented at the AASHTO Sub Committee on Design Meeting June 2007 Burlington, Vermont Clear Zone is

More information

On-Street Bicycle Facilities

On-Street Bicycle Facilities On-Street Bicycle Facilities A. General 12B-3 Design Manual Chapter 12 - Sidewalks and Bicycle Facilities 12B - Bicycle Facilities Cyclists have similar access and mobility needs as other transportation

More information

T10:2012 Site Category 1a) T10:2012 Site Category 1b) Railway Level Crossing Approach Traffic Signal Approach Event Code F Event Code E

T10:2012 Site Category 1a) T10:2012 Site Category 1b) Railway Level Crossing Approach Traffic Signal Approach Event Code F Event Code E T10:2012 Site Category 1a) Railway Level Crossing Approach Event Code F T10:2012 Site Category 1b) Traffic Signal Approach Event Code E Traffic signals Crosswalk T10:2012 Site Category 1c) Pedestrian Crossing

More information

PEDESTRIAN ACCOMMODATIONS DPS 201 AT INTERCHANGES

PEDESTRIAN ACCOMMODATIONS DPS 201 AT INTERCHANGES PEDESTRIAN ACCOMMODATIONS DPS 201 AT INTERCHANGES UNDERSTANDING THE ISSUES Intersections of freeway ramp terminals at crossroads are the most critical components of an interchange Challenge: balance mobility

More information

This Chapter sets forth the minimum design, technical criteria and specifications to be used in the preparation of all roadway plans.

This Chapter sets forth the minimum design, technical criteria and specifications to be used in the preparation of all roadway plans. 4.1 GENERAL This Chapter sets forth the minimum design, technical criteria and specifications to be used in the preparation of all roadway plans. These Roadway Standards are for new construction and modification

More information

CHAPTER 7 STREET DESIGN AND TECHNICAL CRITERIA TABLE OF CONTENTS

CHAPTER 7 STREET DESIGN AND TECHNICAL CRITERIA TABLE OF CONTENTS CHAPTER 7 STREET DESIGN AND TECHNICAL CRITERIA TABLE OF CONTENTS Section Title Page 7.1 General... 7-1 7.1.1 Conforming to Standards and Master Plans... 7-1 7.1.2 Construction Drawings Relating to Chapter

More information

Designing Pedestrian Facilities for Accessibility. Module 3 Curb Ramps & Blended Transitions

Designing Pedestrian Facilities for Accessibility. Module 3 Curb Ramps & Blended Transitions Module 3 & Other Purpose: Allow pedestrians to transition between the street and sidewalks, islands, etc. Typically installed at: Intersections (1 ramp at each end of each crosswalk) Mid-block crossings

More information

JUNE, 2000 ROAD DESIGN MANUAL 5-0(1) CHAPTER 5 AT-GRADE INTERSECTIONS

JUNE, 2000 ROAD DESIGN MANUAL 5-0(1) CHAPTER 5 AT-GRADE INTERSECTIONS JUNE, 2000 ROAD DESIGN MANUAL 5-0(1) CHAPTER 5 AT-GRADE INTERSECTIONS 5-1.0 INTRODUCTION 5-1.01 Definition 5-1.02 Policy 5-1.03 Design Considerations 5-1.04 Vehicle Characteristics 5-1.04.01 Turning Radii

More information

The City of Sault Ste. Marie Cycling Master Plan

The City of Sault Ste. Marie Cycling Master Plan 4.0 DESIGN GUIDELINES - Development This section provides direction to those who will be constructing trails in the future. The contents are technical, providing facility types and locations, construction

More information

APPENDIX B(1) SUBDIVISION STREET DESIGN GUIDE. SECTION B(1) 1 INTRODUCTION Introduction... B(1)-1

APPENDIX B(1) SUBDIVISION STREET DESIGN GUIDE. SECTION B(1) 1 INTRODUCTION Introduction... B(1)-1 APPENDIX B(1) SUBDIVISION STREET DESIGN GUIDE SECTION B(1) 1 INTRODUCTION Introduction... B(1)-1 SECTION B(1) 2 DESIGN REQUIREMENTS Projected Traffic / Operational / Capacity Analysis... B(1)-2 Functional

More information

THE FUTURE OF THE TxDOT ROADWAY DESIGN MANUAL

THE FUTURE OF THE TxDOT ROADWAY DESIGN MANUAL THE FUTURE OF THE TXDOT ROADWAY DESIGN MANUAL Kenneth Mora, P.E. (Design Division) 10/10/2017 Table of contents 1 2 Reduction in FHWA design controlling criteria Innovative Intersection Guidance 3-7 8-42

More information

REGIONAL BICYCLE AND PEDESTRIAN DESIGN GUIDELINES

REGIONAL BICYCLE AND PEDESTRIAN DESIGN GUIDELINES REGIONAL BICYCLE AND PEDESTRIAN DESIGN GUIDELINES November 16, 2011 Deb Humphreys North Central Texas Council of Governments Bicycle and Pedestrian Advisory Committee Snapshot of the Guide 1. Introduction

More information

NJDOT Complete Streets Checklist

NJDOT Complete Streets Checklist Background The New Jersey Department of Transportation s Complete Streets Policy promotes a comprehensive, integrated, connected multi-modal network by providing connections to bicycling and walking trip

More information

INTERSECTION DESIGN TREATMENTS

INTERSECTION DESIGN TREATMENTS Designing for Bicyclist Safety INTERSECTION DESIGN TREATMENTS LEARNING OUTCOMES Understand intersection design options and features Select appropriate design feature for a bikeway in a given context C1

More information

City of Prince Albert Statement of POLICY and PROCEDURE. Department: Public Works Policy No. 66. Section: Transportation Issued: July 14, 2014

City of Prince Albert Statement of POLICY and PROCEDURE. Department: Public Works Policy No. 66. Section: Transportation Issued: July 14, 2014 Page: 1 of 8 1 POLICY 1.01 The City shall follow all of the specifications in the Manual of Uniform Traffic Control Devices for Canada, prepared by the National Committee of Uniform Traffic Control, and

More information

Copenhagen Cycling Map. Red Lines Cycling facilities

Copenhagen Cycling Map. Red Lines Cycling facilities Copenhagen Cycling Map Red Lines Cycling facilities Copenhagen Cycling Facilities Design Approaches Transportation without Pollution Copenhagen s Strategy Where Cycling is one of the top key activities

More information

Road Safety Assessments. Lt. Bob McCurdy Williamson County Sheriff s s Office Marion, IL.

Road Safety Assessments. Lt. Bob McCurdy Williamson County Sheriff s s Office Marion, IL. Road Safety Assessments Lt. Bob McCurdy Williamson County Sheriff s s Office Marion, IL. Why Are We Here? 2005 US Traffic Fatalities = 43,443 1429 4329 1361 1616 1534 3504 1729 3543 Illinois Annual Fatallities

More information

STATE HIGHWAY GEOMETRIC DESIGN MANUAL APPENDIX A: DESIGN CHECKLIST

STATE HIGHWAY GEOMETRIC DESIGN MANUAL APPENDIX A: DESIGN CHECKLIST STATE HIGHWAY GEOMETRIC DESIGN MANUAL A - 1 Appendix A: Design Checklist for the Development of Geometric Plans (For use in the Planning and Design of State Highway Improvement Projects) NOTES: 1. Design

More information

SECTION A-1-GEOMETRIC DESIGN STANDARDS

SECTION A-1-GEOMETRIC DESIGN STANDARDS APPENDIX A SECTION A-1-GEOMETRIC DESIGN STANDARDS Introduction... A-1 Flexibility In Design... A-1 Secondary Project Improvements... A-2 Roadway Width... A-3 Design Speed (V)... A-3 Operating Speed...

More information

SECTION A-1-GEOMETRIC DESIGN STANDARDS

SECTION A-1-GEOMETRIC DESIGN STANDARDS APPENDIX A SECTION A-1-GEOMETRIC DESIGN STANDARDS Introduction... A-1 Flexibility In Design... A-1 Secondary Project Improvements... A-2 Roadway Width... A-3 Design Speed (V)... A-3 Operating Speed...

More information

City of Vallejo Traffic Calming Toolbox

City of Vallejo Traffic Calming Toolbox City of Vallejo Traffic Calming Toolbox June 1, 2013 Final Table of Contents Introduction... 1 Non-Physical Devices... 3 High-Visibility Crosswalk... 3 In Pavement Lighted Crosswalk... 4 Rapid Flashing

More information

Off-Road Facilities Part 1: Shared Use Path Design

Off-Road Facilities Part 1: Shared Use Path Design Off-Road Facilities Part 1: Shared Use Path Design Presentation by: Eric Mongelli, P.E. Tom Huber October 9, 2012 FOLLOW THE CONVERSATION ON TWITTER Toole Design Group is live tweeting this webinar @tooledesign

More information

General Design Factors

General Design Factors Chapter 3: 3-1.0 Introduction General Design Factors Mn/DOT s goals include encouraging and accommodating safe bicycling. From a design perspective, these goals are achieved by first having an understanding

More information

Chapter 5 Shared-Use Paths

Chapter 5 Shared-Use Paths Chapter 5: 5-1.0 Introduction Shared-Use Paths This chapter provides guidelines for design of bicycle transportation facilities that are separated from the roadway. In most cases, a path separated from

More information

CURBSIDE ACTIVITY DESIGN

CURBSIDE ACTIVITY DESIGN 5 CURBSIDE ACTIVITY DESIGN This chapter provides design guidance for separated bike lanes adjacent to curbside activities including parking, loading and bus stops. Typical configurations are presented

More information

DRAFT Sellwood Bridge Existing Roadway Deficiencies

DRAFT Sellwood Bridge Existing Roadway Deficiencies Technical Memorandum DRAFT Sellwood Bridge Existing Roadway Deficiencies Executive Summary Purpose Roadway design standards are developed to support safety and mobility goals. Roadway deficiencies have

More information

5. RUNNINGWAY GUIDELINES

5. RUNNINGWAY GUIDELINES 5. RUNNINGWAY GUIDELINES These guidelines should be considered collectively when making runningway decisions. A runningway is the linear component of the transit system that forms the right-of-way reserved

More information

Gateway Signs. Description: Sign reminding drivers of the need to drive slowly Issues addressed: speeding Cautions/Limitations: Application:

Gateway Signs. Description: Sign reminding drivers of the need to drive slowly Issues addressed: speeding Cautions/Limitations: Application: Level 1 Limited Application Gateway Signs Description: Sign reminding drivers of the need to drive slowly Issues addressed: speeding Increased motorist awareness of the neighborhood character Provides

More information

MOVING PASSAIC COUNTY

MOVING PASSAIC COUNTY MOVING PASSAIC COUNTY COMPLETE STREETS GUIDELINES OCTOBER 2012 Prepared By: Passaic County Department of Planning and Economic Development with assistance from Parsons Brinckerhoff PASSAIC COUNTY COMPLETE

More information

BI-DIRECTIONALS FREE-ACCESS

BI-DIRECTIONALS FREE-ACCESS BI-DIRECTIONALS FREE-ACCESS Dimensions may vary depending on design vehicle and turning movements. See GEO-650-Series for addtional details. SPECIAL Special situations, i.e., See Notes 4 & 5 wide streets,

More information

SECTION 1 - TRAFFIC PLANNING

SECTION 1 - TRAFFIC PLANNING SECTION 1 - TRAFFIC PLANNING 1.1 TRAFFIC OPERATIONS 1.1.1 Roadway Functional Classification The Multnomah County Comprehensive Framework Plan s Policy 34: Trafficways and the Functional Classification

More information

CHAPTER 1 STANDARD PRACTICES

CHAPTER 1 STANDARD PRACTICES CHAPTER 1 STANDARD PRACTICES OBJECTIVES 1) Functions and Limitations 2) Standardization of Application 3) Materials 4) Colors 5) Widths and Patterns of Longitudinal Pavement Marking Lines 6) General Principles

More information

Chapter 5: Crossing the Street

Chapter 5: Crossing the Street Chapter 5: Crossing the Street Whether walking or bicycling, a student s journey to school will more than likely require crossing one or more streets. Per the Safe Routes to School Guide, maintained by

More information

Retrofitting Urban Arterials into Complete Streets

Retrofitting Urban Arterials into Complete Streets Retrofitting Urban Arterials into Complete Streets John N. LaPlante, P.E., P.T.O.E., T.Y. Lin International Prepared for: Illinois Traffic Engineering & Safety Conference Urbana, Illinois October 18, 2007

More information

DRAFT - CITY OF MEDFORD TRANSPORTATION SYSTEM PLAN Roadway Cross-Sections

DRAFT - CITY OF MEDFORD TRANSPORTATION SYSTEM PLAN Roadway Cross-Sections Roadway Cross-Sections Medford s roadway cross-section standards apply to new and reconstructed roads. The crosssections take into consideration roadway function and operational characteristics, including

More information

Figure 5-1 Complete Street Zones. Roadside. May include frontage, pedestrian throughway, furnishings and curbside areas.

Figure 5-1 Complete Street Zones. Roadside. May include frontage, pedestrian throughway, furnishings and curbside areas. Design Guidelines 5 The design guidelines presented in this section provide descriptions related to the form and function of the four Complete Streets zones: roadside, parking, roadways and lanes, median,

More information

Clackamas County Comprehensive Plan

Clackamas County Comprehensive Plan ROADWAYS The County s road system permits the movement of goods and people between communities and regions, using any of a variety of modes of travel. Roads provide access to virtually all property. They

More information

The 2012 AASHTO Bike Guide: An Overview

The 2012 AASHTO Bike Guide: An Overview The 2012 AASHTO Bike Guide: An Overview Presentation by: Jennifer Toole, AICP, ASLA Peter Lagerwey August 10, 2012 {Enter Module Name on Master Slide} WEBINAR #1: OVERVIEW OF 2012 AASHTO BIKE GUIDE Today

More information

4.1 CONTEXT. The existing terrain and sight conditions will affect available sight lines and approach speeds of bicyclists and motorists.

4.1 CONTEXT. The existing terrain and sight conditions will affect available sight lines and approach speeds of bicyclists and motorists. 4 INTERSECTION DESIGN This chapter provides key principles that should be used to develop and evaluate design approaches and treatments that will result in intersections that support all ages and abilities

More information

Prince George s County plans, policies, and projects

Prince George s County plans, policies, and projects Prince George s County plans, policies, and projects Over 250 projects for trails, bikeways, designated bike lanes and sidewalk construction Trail projects that improve access to Metro Sidewalk and trail

More information

01. VICINITY OF GREENBRAE POC: EXISTING CONDITIONS

01. VICINITY OF GREENBRAE POC: EXISTING CONDITIONS 01. VICINITY OF GREENBRAE POC: EXISTING CONDITIONS Existing Bus Stop Existing US101 On-ramp Existing POC Old Redwood Highway Rich Street City ROW Environmental Study Limit Industrial Way NO DESIGNATED

More information

SECTION 12 ROAD MARKINGS AND DELINEATION

SECTION 12 ROAD MARKINGS AND DELINEATION SECTION 12 20 June 2009 Part 3: Motorways and Expressways CONTENTS Reference Page Page Number Date SECTION 12: MARKINGS AND DELINEATION 12.1 GENERAL... 12-1 June 2009 12.1.1 INTRODUCTION... 12-1 June 2009

More information

CHAPTER 1 GENERAL DESIGN

CHAPTER 1 GENERAL DESIGN CHAPTER 1 GENERAL DESIGN 1.0 INTRODUCTION The purpose of this Manual is to provide its users with the current, uniform procedures and guidelines for the application and design of safe, convenient, efficient

More information

On Road Bikeways Part 1: Bicycle Lane Design

On Road Bikeways Part 1: Bicycle Lane Design On Road Bikeways Part 1: Bicycle Lane Design Presentation by: Nick Jackson Bill Schultheiss, P.E. September 04, 2012 FOLLOW THE CONVERSATION ON TWITTER Toole Design Group is live tweeting this webinar

More information

A. Arlington County Master Transportation Plan Pedestrian Element B. Arlington County Horizontal Standards H-3.1 Driveway Entrances

A. Arlington County Master Transportation Plan Pedestrian Element B. Arlington County Horizontal Standards H-3.1 Driveway Entrances GENERAL 1. Description This standard identifies minimum requirements that shall be met for all accessible ramps in the design and construction of elements for Arlington County Horizontal Design Standards.

More information

4. TRAIL DESIGN GUIDELINES

4. TRAIL DESIGN GUIDELINES Trail Design Guidelines 4. TRAIL DESIGN GUIDELINES This chapter provides specific design guidelines for the Humboldt Bay Trail that are consistent with the guidelines currently observed in California and

More information

Median Design. Course No: C Credit: 4 PDH. Debra Kennaugh, P.E.

Median Design. Course No: C Credit: 4 PDH. Debra Kennaugh, P.E. Median Design Course No: C04-041 Credit: 4 PDH Debra Kennaugh, P.E. Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com

More information

Markings Technical Committee Chapter 3H: Roundabout Markings APPROVED IN NCUTCD COUNCIL ON JANUARY 20, 2006

Markings Technical Committee Chapter 3H: Roundabout Markings APPROVED IN NCUTCD COUNCIL ON JANUARY 20, 2006 ATTACHMENT NO. 30 Markings Technical Committee Chapter 3H: Roundabout Markings APPROVED IN NCUTCD COUNCIL ON JANUARY 20, 2006 Roundabouts are becoming an increasingly utilized form of intersection design

More information

CHECKLIST 3: DETAILED DESIGN STAGE AUDIT

CHECKLIST 3: DETAILED DESIGN STAGE AUDIT CHECKLIST 3: DETAILED DESIGN STAGE AUDIT 3.1 General topics 3.1.1 Changes since previous audit Do the conditions for which the scheme was originally designed still apply? (i.e. no significant changes to

More information

RAILWAY LEVEL CROSSING CHECKLIST Road Safety Review of Railway Crossings

RAILWAY LEVEL CROSSING CHECKLIST Road Safety Review of Railway Crossings RAILWAY LEVEL CROSSING CHECKLIST Road Safety Review of Railway Crossings Location: Crossing No. Date of On-Site Inspection: (Day) / / (Night) / / Weather: CHECKLIST 5. - GENERAL TOPICS Level of control

More information

200 Horizontal and Vertical Design. Table of Contents

200 Horizontal and Vertical Design. Table of Contents 200 Horizontal and Vertical Design Table of Contents 201 Sight Distance... 2-1 201.1 General... 2-1 201.2 Stopping Sight Distance... 2-1 201.2.1 Horizontal Sight Distance... 2-2 201.2.2 Vertical Stopping

More information

Best Practices for the Design and Operation of Reduced Conflict Intersections

Best Practices for the Design and Operation of Reduced Conflict Intersections Best Practices for the Design and Operation of Reduced Conflict Intersections OCTOBER 2016 Prepared By: Table of Contents INTRODUCTION... 5 Purpose... 5 Definition... 5 Advantages... 6 Disadvantages...

More information

TRAFFIC CALMING TOOLBOX

TRAFFIC CALMING TOOLBOX TRAFFIC CALMING TOOLBOX Traffic control devices are those official signs and striping placed in the public right-of-way and recognized by the public such as STOP signs, curve warning signs, centerline

More information

Design Specifications & Requirements Manual

Design Specifications & Requirements Manual 2 TRANSPORTATION 2.1 ROADS DESIGN... 1 2.1.1 Design Speed... 1 2.1.2 Centreline Radii... 1 2.1.3 Radii for Curb & Gutter... 2 2.1.4 Lane Widths... 3 2.1.5 Right of Way, Pavement and Boulevard Widths...

More information

5 CIRCULATION AND STREET DESIGN

5 CIRCULATION AND STREET DESIGN 5 CIRCULATION AND STREET DESIGN This chapter describes circulation and streetscape improvements proposed for the Northwest Chico Specific Plan Area. It includes detailed design specifications for existing

More information

TRANSPORTATION STANDARDS

TRANSPORTATION STANDARDS INTRODUCTION LOCAL STREETS ON-STREET PARKING SIDEWALKS STREET LIGHTING STREET FURNISHINGS TRAFFIC CALMING STREET TREES MEDIAN PLANTING BOULEVARD LOCATIONS VILLAGE CENTER STREET LOCATIONS RESIDENTIAL STREET

More information

Road Traffic Signs in Germany

Road Traffic Signs in Germany Warning signs Road Traffic Signs in Germany General danger Curve left Curve right Double curve Double curve Accident hazard Sliding danger Winter sports along road Soft shoulder Rough road edge Steep upgrade

More information

APPENDIX F. Access Management Design Standards for Entrances and Intersections

APPENDIX F. Access Management Design Standards for Entrances and Intersections APPENDIX F Access Management Design Standards for Entrances and Intersections PREFACE The access management regulations and standards do not apply in cities, towns of more than 3,500 and in counties (Henrico

More information

LIST OF FIGURES Figure Title

LIST OF FIGURES Figure Title TABLE OF CONTENTS Table of Contents... 1 List of Figures... 2 44-1A Critical Length of Grade for Trucks... 3 44-1B Critical Length of Grade for Recreational Vehicles... 3 44-1C Measurement for Length of

More information

Chapter 4 Engineering 4.12 Sample Cross-Sections

Chapter 4 Engineering 4.12 Sample Cross-Sections The following text was originally published as part of MORPC s Complete Streets checklist, along with our adopted policy. It is included here both for completeness and for visual updates. Three dimensional

More information

DEPARTMENT OF PUBLIC WORKS Carroll County, Maryland

DEPARTMENT OF PUBLIC WORKS Carroll County, Maryland DEPARTMENT OF PUBLIC WORKS Carroll County, Maryland Prepared by the Bureau of Engineering 225 North Center Street, Room 221, Westminster, MD 21157 (410) 386-2157 e-mail: trafficcalming@ccg.carr.org http://ccgovernment.carr.org/trafficcalming

More information

ROUNDABOUTS. Improving Safety and Efficiency. SR83 & Smithville Western Rd. Joel Montgomery, PE Director of Administration

ROUNDABOUTS. Improving Safety and Efficiency. SR83 & Smithville Western Rd. Joel Montgomery, PE Director of Administration ROUNDABOUTS Improving Safety and Efficiency SR83 & Smithville Western Rd. Joel Montgomery, PE Director of Administration The Ohio Department of Transportation District 3 906 North Clark Ave. Ashland, OH

More information

References General Definitions

References General Definitions Chapter 700 700.01 General 700.02 References 700.03 Definitions 700.04 Clear Zone 700.05 Hazards to Be Considered for Mitigation 700.06 Median Considerations 700.07 Other Features 700.08 Documentation

More information

5. INTERSECTION DESIGN

5. INTERSECTION DESIGN 5. INTERSECTION DESIGN INTRODUCTION....1 ESSENTIAL PRINCIPLES OF INTERSECTION DESIGN...1 INTERSECTION GEOMETRY...2 Skew...3 Corner Radii...5 Curb Extensions...7 Crosswalk and Ramp Placement...10 On-Street

More information

CITY OF SASKATOON COUNCIL POLICY

CITY OF SASKATOON COUNCIL POLICY ORIGIN/AUTHORITY Clause 1, Report No. 1-1980 and Clause 4, Report No. 22-1990 of the Works and Utilities Committee; Clause 6, Report No. 17-2004 of the Planning and Operations Committee; and Clause D5,

More information

ADA PRESENTATION (CURB RAMPS)

ADA PRESENTATION (CURB RAMPS) ADA PRESENTATION (CURB RAMPS) ACECNJ/NJDOT/FHWA DESIGN SUMMIT Warren Howard New Jersey Department of Transportation May 21, 2013 ADA Curb Ramps NJDOT wants curb ramps to be designed & constructed properly

More information

Toolbox of Alternatives

Toolbox of Alternatives Toolbox of Alternatives Mobility Enhancements Policy Improvements Travel Demand Management Other Geometric/Capacity/ Operational Improvements Access Management Safety Improvements Multi-Modal Improvements

More information

Living Streets Policy

Living Streets Policy Living Streets Policy Introduction Living streets balance the needs of motorists, bicyclists, pedestrians and transit riders in ways that promote safety and convenience, enhance community identity, create

More information

TABLE OF CONTENTS. General... A. New Construction/Reconstruction (4R)...B. Resurfacing, Restoration and Rehabilitation (3R)...C

TABLE OF CONTENTS. General... A. New Construction/Reconstruction (4R)...B. Resurfacing, Restoration and Rehabilitation (3R)...C - LOCAL AGENCY PROJECTS TABLE OF CONTENTS Section General... A New Construction/Reconstruction (4R)...B Resurfacing, Restoration and Rehabilitation (3R)...C Preventive Maintenance (PM)... D Design Exception...E

More information

Road Markings. Lecture Notes in Transportation Systems Engineering. Prof. Tom V. Mathew. 1 Overview 1. 2 Classification 2

Road Markings. Lecture Notes in Transportation Systems Engineering. Prof. Tom V. Mathew. 1 Overview 1. 2 Classification 2 Road Markings Lecture Notes in Transportation Systems Engineering Prof. Tom V. Mathew Contents 1 Overview 1 2 Classification 2 3 Longitudinal markings 2 3.1 Center line.....................................

More information

SPEED CONTROL AT ROUNDABOUTS USE OF MAXIMUM ENTRY PATH RADII

SPEED CONTROL AT ROUNDABOUTS USE OF MAXIMUM ENTRY PATH RADII 23 rd ARRB Conference Research Partnering with Practitioners, Adelaide Australia, 2008 SPEED CONTROL AT ROUNDABOUTS USE OF MAXIMUM ENTRY PATH RADII Dr Owen Arndt, Queensland Department of Main Roads, Australia

More information

Implementing Complete Streets in Ottawa. Project Delivery Process and Tools Complete Streets Forum 2015 October 1, 2015

Implementing Complete Streets in Ottawa. Project Delivery Process and Tools Complete Streets Forum 2015 October 1, 2015 Implementing Complete Streets in Ottawa October 1, 2015 The Essentials Complete Streets Implementation Framework will become part of the routine delivery of City transportation projects Approach uses every

More information

Roadway Geometric Design I: Functions, Controls and Alignments

Roadway Geometric Design I: Functions, Controls and Alignments : Functions, Controls and Alignments Course No: C05-023 Credit: 5 PDH Gregory J. Taylor, P.E. Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F:

More information

CHECKLIST 4: PRE-OPENING STAGE AUDIT

CHECKLIST 4: PRE-OPENING STAGE AUDIT CHECKLIST 4: PRE-OPENING STAGE AUDIT 4.1 General topics 4.1.1 Changes since previous audit; translation of design into practice General check: have any matters that have changed since a previous audit

More information

STAKING TRAFFIC CONTROL SIGNAL SYSTEMS

STAKING TRAFFIC CONTROL SIGNAL SYSTEMS Locating the components of a traffic control signal is not an exact science; many factors influence the location of the components. These factors include: lane widths, radii, pedestrian curb ramp requirements,

More information

Practical Application of Turn Lane Design Criteria in Developing Suburban & Urban Corridors

Practical Application of Turn Lane Design Criteria in Developing Suburban & Urban Corridors Practical Application of Turn Lane Design Criteria in Developing Suburban & Urban Corridors Presented by Gilmer D. Gaston, P.E., PTOE October 14, 2014 San Antonio Austin Houston Fort Worth Dallas When

More information

DESIGN GUIDELINES. Chapter Contents: Overview. Design Needs of Pedestrians. Sidewalks. Pedestrians at Intersections. Signalization

DESIGN GUIDELINES. Chapter Contents: Overview. Design Needs of Pedestrians. Sidewalks. Pedestrians at Intersections. Signalization A DESIGN GUIDELINES Chapter Contents: Overview Design Needs of Pedestrians Sidewalks Pedestrians at Intersections Signalization Pedestrian Signs and Wayfinding Design Needs of Bicyclists Shared Roadways

More information

Overview. Illinois Bike Summit IDOT Complete Streets Policy Presentation. What is a Complete Street? And why build them? And why build them?

Overview. Illinois Bike Summit IDOT Complete Streets Policy Presentation. What is a Complete Street? And why build them? And why build them? Overview Illinois Bike Summit IDOT Complete Streets Policy Presentation Aren Kriks, P.E. District One Bicycle Coordinator and Bureau of Programming Project Engineer History of Complete Streets IDOT Policy

More information

Item to be Addressed Checklist Consideration YES NO N/A Required Description Complete Streets Guidelines

Item to be Addressed Checklist Consideration YES NO N/A Required Description Complete Streets Guidelines Passaic County Complete Streets Checklist - Concept Development Project Name Item to be Addressed Checklist Consideration YES NO N/A Required Description Complete Streets Guidelines Existing Plans Have

More information

Watertown Complete Streets Prioritization Plan. Public Meeting #1 December 14, 2017

Watertown Complete Streets Prioritization Plan. Public Meeting #1 December 14, 2017 Watertown Complete Streets Prioritization Plan Public Meeting #1 December 14, 2017 Goals for Public Meeting Overview of MassDOT Complete Streets Funding Program Educate the community on Complete Streets

More information

444 North Capitol Street NW, Suite 249, Washington, DC (202) Fax: (202) ERRATA

444 North Capitol Street NW, Suite 249, Washington, DC (202) Fax: (202) ERRATA Larry L. Butch Brown, Sr., President Executive Director, Mississippi Department of Transportation John Horsley, Executive Director 444 North Capitol Street NW, Suite 249, Washington, DC 20001 (202) 624-5800

More information

Session 1 23 CFR 772: Type I Project Definitions

Session 1 23 CFR 772: Type I Project Definitions Session 1 23 CFR 772: Type I Project Definitions Facilitator: Carole Newvine, Oregon DOT Participants: Carole Newvine, Oregon DOT Mariano Berrios, Florida DOT Tom Hanf, Michigan DOT Greg Smith, North Carolina

More information

102 Avenue Corridor Review

102 Avenue Corridor Review February 26, 2015 102 Avenue Corridor Review Transportation Association of Canada Road Safety Engineering Award Submission for the City of Edmonton Introduction Transportation Association of Canada Road

More information

Coquitlam Cross-town Bike Route Improving Bicycle Facilities in a Mature Suburban Environment

Coquitlam Cross-town Bike Route Improving Bicycle Facilities in a Mature Suburban Environment Coquitlam Cross-town Bike Route Improving Bicycle Facilities in a Mature Suburban Environment Sarah Rocchi, Vice-President, Projects, Opus International Consultants (Main Presenter) Catherine Mohoruk,

More information

4. Street Standards. City of Steamboat Springs Engineering Standards Chapter 4 Street Standards Revised 5/8/15

4. Street Standards. City of Steamboat Springs Engineering Standards Chapter 4 Street Standards Revised 5/8/15 4. Street Standards 4.1. GENERAL Designs for new streets and upgrades to existing streets in Steamboat Springs shall incorporate complete street concepts. Street design addresses safe and efficient movement

More information

INTERSECTION DESIGN. Bicycle Facility Workshop Intersections 4-1

INTERSECTION DESIGN. Bicycle Facility Workshop Intersections 4-1 INTERSECTION DESIGN 4-1 Intersections Avoid unusual conflicts Provide direct path for cyclists, close to that of motor vehicles Bicyclists should be visible; their movements should be predictable Simple

More information

GEOMETRIC DESIGN OF ROUNDABOUTS AND TRAFFIC S IGNAL SIGNAL CONTROLLED

GEOMETRIC DESIGN OF ROUNDABOUTS AND TRAFFIC S IGNAL SIGNAL CONTROLLED TD 16/07 and TD 50/04 GEOMETRIC DESIGN OF ROUNDABOUTS AND TRAFFIC SIGNAL CONTROLLED JUNCTIONS DMRB Vol 6 File 6 0 ROUNDABOUTS: INTRODUCTION Principles Roundabout Types Entry Deflection Capacity Visibility

More information