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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.
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*
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?
a. R1
b. W18
c. C20
d. C23
2. What is the MAXIMUM cone spacing allowed for a taper in a 50
MPH speed limit?
a. 25 feet
b. 40 feet
c. 50 feet
d. 100 feet
3. Which of the following items is required on ALL jobs for
flaggers?
a. flag
b. C28 paddle
c. steel-toed shoes
d. reflectorized pants
*All questions are written and reviewed by licensed
contractors who are actively working in the field*
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
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