SI* (Modern Metric) Conversion Factors

Errata 1

6A. Introduction

6B. Fundamental Principles

6C. Temporary Traffic Control Elements

6C-1. Traffic Control Plans
6C-2. Definition of Temporary Traffic Control Zone Components

a. Advance Warning Area
b. Transition Area
c. Activity Area
d. Termination Area

6C-3. Tapers

a. Merging Taper
b. Shifting Taper
c. Shoulder Taper
d. Downstream Taper
e. One-Lane, Two-Way Taper

6C-4. Detours and Diversions

6C-5. One-Lane, Two-Way Traffic Control

a. Flagger Method
b. Flag Transfer method
c. Pilot Car Method
d. Temporary Traffic Signal Method
e. Stop or Yield Control Method

6C-6. Transit Considerations

6D. Pedestrian and Worker Safety

6D-1. Pedestrian Considerations
6D-2. Worker Safety Considerations

6E. Hand-Signaling Control

6E-1. Function
6E-2. Qualifications for Flaggers
6E-3. High-Visibility Clothing
6E-4. Hand-Signaling Devices
6E-5. Hand-Signaling Procedures
6E-6. Flagger Stations

6F. Types of Devices

6F-1. Signs

a. Regulatory Signs
b. Warning Signs
c. Guide Signs

6F-2. Portable Changeable Message Signs

a. Design
b. Application

6F-3. Arrow Displays

a. Arrow Display Specifications
b. Arrow Display Application

6F-4. High-Level Warning Devices

6F-5. Channelizing Devices

a. General
b. Cones
c. Tubular Markers
d. Vertical Panels
e. Drums
f. Barricades
g. Portable Barriers
h. Temporary Raised Islands
i. Other Channelizing Devices

6F-6. Markings

a. Pavement Marker Applications
b. Interim Markings
c. Raised Pavement Markers
d. Delineators

6F-7. Lighting Devices

a. Function
b. Floodlights
c. Flashing Identification Beacons (Flashing Electric Lights)
d. Steady Burning Electric Lamps
e. Warning Lights

6F-8. Other Devices

a. Impact Attenuators
b. Portable Barriers
c. Temporary Traffic Signals
d. Rumble Strips e. Screens
f. Opposing Traffic Lane Divider

6G. Types of Temporary Traffic Control Zone Activities

6G-1. Typical Applications
6G-2. Selecting The Typical Application

a. Duration of Work
b. Location of Work
c. Roadway Type

6G-3. Work Outside The Shoulder
6G-4. Work On The Shoulder

a. No Encroachment on Traveled Way
b. Minor Encroachment on Traveled Way

6G-5. Work Within Traveled Way-Rural Two-Lane

a. Detours
b. One-Way Traffic Control

6G-6. Work Within Traveled Way-Urban Streets Or Arterial
6G-7. Work Within Traveled Way-Rural Or Urban, Multilane Divided and Undivided, Nonaccess Controlled

a. Right Lane Closed
b. Left Lane Closed
c. Multiple Lanes Closed
d. Five-Lane Roads

6G-8. Work Within Traveled Way-Intersections
6G-9. Work Within Traveled Way-Freeways

a. Problem Areas
b. Two-Lane, Two-Way Traffic on One Roadway of a Normally Divided Highway
c. Crossovers
d. Interchanges

6G-10. Control of Traffic Through Incident Areas

6H. Application of Devices

6H-1. Typical Applications
6H-2. General Notes

a. Work Performed on the Roadside (Outside Shoulder)
b. Work Performed on Shoulders
c. Mobile and Short-Duration Operations
d. Lane Closing on Two-Lane Roads
e. Lane Closing on Multilane Roads
f. Work Performed in the Vicinity of Intersections
g. Incident Management Situations
h. Features That May be Added to the Diagrams

6H-3. Typical Application Diagrams

List of Tables

VI-1. Guidelines for length of longitudinal buffer space
VI-2. Taper length criteria for temporary traffic control zones
VI-3. Suggested advance warning sign spacing
VI-4. Index to typical application diagrams

List of Figures

VI-1. Component parts of a temporary traffic control zone
VI-2. Tapers and buffer space
VI-3. Example of one lane-two way traffic control
VI-4. Use of hand signaling devices by flagger
VI-5. Height and lateral location of signs - typical installation
VI-6. Methods of mounting signs other than on posts
VI-7a-b. Commonly used regulatory signs
VI-8a-c. Warning signs used in temporary traffic control zones
VI-9. Advance Warning Arrow Display Specifications
VI-10. Channelizing Devices
VI-11. Symbols used in typical application diagrams

Figures

TA-1. Work Beyond the Shoulder
TA-2. Blasting Zone
TA-3. Work on Shoulders
TA-4. Mobile Operation on Shoulder
TA-5. Shoulder Closed on Freeway
TA-6. Shoulder Work with Minor Encroachment
TA-7. Road Closed with Diversion
TA-8. Road Closed with Off-Site Detour
TA-9. Roads Opened and Closed with Detour
TA-10. Lane Closure on Two-Lane Road Using Flaggers
TA-11. Lane Closure on Low-Volume, Two-Lane Road
TA-12. Lane Closure on Two-Lane Road Using Traffic Signals
TA-13. Temporary Road Closure
TA-14. Haul Road Crossing
TA-15. Work in Center of Low-Volume Road
TA-16. Surveying Along Centerline of Low-Volume Road
TA-17. Mobile Operations on Two-Lane Road
TA-18. Lane Closure on Minor Street
TA-19. Detour for One Travel Direction
TA-20. Detour for Closed Street
TA-21. Lane Closure Near Side of Intersection
TA-22. Right Lane Closure Far Side of Intersection
TA-23. Left Lane Closure Far Side of Intersection
TA-24. Half Road Closure Far Side of Intersection
TA-25. Multiple Lane Closures at Intersection
TA-26. Closure in Center of Intersection
TA-27. Closure at Side of Intersection
TA-28. Sidewalk Closures and Bypass Walkway
TA-29. Crosswalk Closures and Pedestrian Detours
TA-30. Interior Lane Closure on Multilane Road
TA-31. Lane Closure on Streets With Uneven Directional Volumes
TA-32. Half Road Closure on Multilane High-Speed Highways
TA-33. Lane Closure on Divided Highway
TA-34. Lane Closure with Barrier
TA-35. Mobile Operation on Multilane Road
TA-36. Lane Shift on Freeway
TA-37. Double Lane Closure on Freeway
TA-38. Interior Lane Closure on Freeway
TA-39. Median Crossover on Freeway
TA-40. Median Crossover for Entrance Ramp
TA-41. Median Crossover for Exit Ramp
TA-42. Work in Vicinity of Exit Ramp
TA-43. Partial Exit Ramp Closure
TA-44. Work in Vicinity of Entrance Ramp

^*SI is the symbol for the International System of Units.