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C-31 Traffic Control
 
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C31 – Construction Zone Traffic Control Contractor

A construction zone traffic control contractor prepares or removes lane closures, flagging, or traffic diversions, utilizing portable devices, such as cones, delineators, barricades, sign stands, flashing beacons, flashing arrow trailers, and changeable message signs, on roadways, including, but not limited to, public streets, highways, or any public conveyance.

Authority cited: Sections 7008 and 7059; Reference: Sections 7058 and 7059 (Business and Professions Code)

Content of the Examination

The Construction Zone Traffic Control (C-31) Examination is divided into four major sections. These sections are:

1. Traffic Control Zone Establishment & Maintenance (52%)

  • Development of installation plan with contingencies
  • Installation of traffic control devices
  • Inspection and maintenance of traffic control zones
  • Removal of traffic control devices
  • Implementation of moving lane closures

2. Safety (26%)

  • Worker training
  • Personal protective equipment
  • Evaluation of traffic control equipment quality
  • Implementation of safe environment and emergency procedures

3. Plans and Specifications (15%)

  • Designing traffic control plans
  • Plan reading and evaluation to determine scope of work
  • Plan and specification reading and evaluation to determine compliance with Caltrans and MUTCD
  • Estimating material, equipment, and labor

4. Permits & Notifications (7%)

  • Verification of city, state, USA/Dig Alert permits for traffic control project
  • Notification of public and appropriate agencies regarding traffic controls

*Percentages are approximate*


Test Site Policy
This is a closed-book examination. No reference materials may be used during the examination. All materials brought to the examination site must be left in an unmonitored area at your own risk.


Test Strategy
This is a multiple choice examination with four choices per question. Some questions require mathematical computation. Examination questions are written to provide only one BEST answer and are NOT written as trick questions.

All correct answers have equal value and there are no score reductions for wrong answers. Therefore, all examination questions should be answered.

Ample time is provided to answer all examination questions, so be sure to read each question and its four choices completely and carefully before selecting the BEST possible answer to the question.

Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. Which sign should come first in the sequencing of signs in a temporary traffic control?

  1. R1
  2. W18
  3. C20
  4. C23

2. What is the MAXIMUM cone spacing allowed for a taper in a 50 MPH speed limit?

  1. 25 feet
  2. 40 feet
  3. 50 feet
  4. 100 feet

3. Which of the following items is required on ALL jobs for flaggers?

  1. flag
  2. C28 paddle
  3. steel-toed shoes
  4. reflectorized pants

*All questions are written and reviewed by licensed contractors who are actively working in the field*

Resources
Cal/OSHA State of California Construction Safety Orders.
California Code of Regulations, Title 8,
Industrial Relations, Division 1, Chapter 4, Subchapter 4, Article 11,
Barclays Law Publishers,
50 California Street, 19th floor,
San Francisco, CA 94111.
(800) 888-3600.
FAX: (415) 732-8875.
OR
Building News, Inc.
1612 S. Clementine Street,
Anaheim, CA 92802.
(800) 873-6397
FAX: (714) 535-8078.
INTERNET: ccr.oal.ca.gov OR www.bnibooks.com

Standard Specifications.
State of CA,
Department of Transportation, Caltrans,
Division of Procurement and Contracts,
Publications Distribution Unit,
1900 Royal Oaks Drive,
Sacramento, CA 95815-3800.
(916) 445-3520.
FAX: (916) 324-8997.
INTERNET: www.caltrans-opac.ca.gov

Standard Plans.
State of CA,
Department of Transportation, Caltrans,
Division of Procurement and Contracts,
Publications Distribution Unit,
1900 Royal Oaks Drive,
Sacramento, CA 95815-3800.
(916) 445-3520.
FAX: (916) 324-8997.
INTERNET: www.caltrans-opac.ca.gov

Instruction for Flaggers.
State of CA,
Department of Transportation, Caltrans,
Division of Procurement and Contracts,
Publications Distribution Unit,
1900 Royal Oaks Drive,
Sacramento, CA 95815-3800.
(916) 445-3520.
FAX: (916) 324-8997.
INTERNET: www.caltrans-opac.ca.gov

Quality Standards for Work Zone Traffic Control Devices.
American Traffic Safety Service Association (ATSSA),
15 Riverside Parkway, Suite 100,
Fredericksburg, VA 22406-1022.
(540) 368-1701
FAX: (540) 368-1717.
INTERNET: www.atssa.com

Manual on Uniform Traffic Control Devices for Streets and Highways: Part VI. Standards and Guides for Traffic Controls for Street and Highway Construction, Maintenance, Utility, and Incident Management Operations California Supplement.
American Traffic Safety Service Association (ATSSA),
15 Riverside Parkway, Suite 100,
Fredericksburg, VA 22406-1022.
(540) 368-1701
FAX: (540) 368-1717.
INTERNET: www.atssa.com

Work Area Traffic Control Handbook (WATCH Manual).
Building News, Inc.,
1612 Clementine,
Anaheim, CA 92802.
(800) 873-6397
FAX: (714) 535-8078.
INTERNET: www.bni-books.com

*Publisher information is current as of 2/05*

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