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Temporary Traffic Control Elements. Module 3.

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temporary traffic control elements

Temporary Traffic Control Elements

Module 3

This training is provided under Susan B. Harwood No. SH-21004-10-60-F-8. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.

work zone traffic control components
Advance warning area

Transition area

Activity area

Termination area

Work Zone Traffic Control Components
work zone traffic control components4
Advance warning area

Transition area

Activity area

Termination area

Work Zone Traffic Control Components
work zone traffic control components5
Advance warning area

Transition area

Activity area

Termination area

Work Zone Traffic Control Components
work zone traffic control components6
Work Zone Traffic Control Components

Advance warning area

Transition area

Activity area

Termination area

activity 3 1 work zone components
Activity 3.1: Work Zone Components
  • Identify the components indicated on the worksheet.
buffer space
Buffer Space

Positioned in advance of work space

Separates the traffic space from the work space

types of tapers
Tapers

Merging

Shifting

Shoulder

One-lane, two-way

Downstream

Types of Tapers
types of tapers13
Tapers

Merging

Shifting

Shoulder

One-lane, two-way

Downstream

Types of Tapers
types of tapers14
Tapers

Merging

Shifting

Shoulder

One-lane, two-way

Downstream

Types of Tapers
types of tapers15
Tapers

Merging

Shifting

Shoulder

One-lane, two-way

Downstream

Types of Tapers
types of tapers16
Tapers

Merging

Shifting

Shoulder

One-lane, two-way

Downstream

Types of Tapers
merging taper
Merging Taper

35

(L) = 245 feet minimum

12feet

slide20

70

Why is this taper longer than the

taper in the preceding slide?

merging taper21
Merging Taper

At 30 mph with a lane width of 12 feet, the merging taper would be ___________.

180 feet minimum

merging taper22
Merging Taper

At 55 mph with a lane width of 12 feet, the merging taper would be ___________.

660 feet minimum

shifting taper
Shifting Taper

Shifting taper

= ½ L

360’

L = 60 mph W = 12’

L= 720’

½ L = 360’

sign spacing
Sign Spacing
  • What determines how far apart signs should be spaced?

Depends on whether the road is classified as a/an

    • Urban low speed
    • Urban high speed
    • Rural
    • Expressway/freeway
procedures for planning lane closures
Procedures for Planning Lane Closures

Multi-lane road

Two-lane, two-way road

installation and removal of temporary traffic control devices
Installation and Removal of Temporary Traffic Control Devices

Installation

Removal

Use of police

Shadow vehicles

activity 3 2 device spacing
Activity 3.2: Device Spacing
  • Use the tables for component spacing to develop a TCP for the problem you worked in Module 1.
  • Roadway Diagram 1b
actividad del participante 3 235
Actividad del Participante 3.2

How do the two drawings compare?