PIC Work Zone Safety & Traffic Control 2

Question 1

According to MUTCD standards, what is the minimum taper length formula for a merging taper on a roadway with a 45 mph posted speed and a 12-foot lane closure?

Accepted Answer

L = W × S (feet)

Answer

For speeds 45 mph and above, the merging taper length formula is L = W × S, where W is the offset distance in feet and S is the posted speed in mph.

Question 2

A flagger in a work zone must wear a high-visibility safety vest rated at minimum:

Accepted Answer

ANSI/ISEA Class 3

Answer

Flaggers must wear ANSI/ISEA Class 3 high-visibility apparel because they are exposed to high traffic speeds and require maximum visibility.

Question 3

Which sign is typically the FIRST advance warning sign motorists encounter when approaching a highway work zone?

Accepted Answer

Road Work Ahead (W20-1)

Answer

The 'Road Work Ahead' (W20-1) sign is the first warning sign placed upstream to alert drivers that a work zone is ahead.

Question 4

What is the primary purpose of a buffer space in a work zone traffic control setup?

Accepted Answer

Protect workers and equipment from errant vehicles

Answer

Buffer spaces are unoccupied areas that provide a safety cushion between live traffic and the work activity area or workers, protecting them from errant vehicles.

Question 5

Under OSHA 29 CFR 1926 Subpart G, who is responsible for ensuring a Traffic Control Plan (TCP) is in place before roadway work begins?

Accepted Answer

The employer/contractor

Answer

Under OSHA 29 CFR 1926 Subpart G, the employer (contractor) is responsible for implementing and maintaining adequate traffic control plans before work begins.

(PIC) Paving Inspector Certification Practice Test

(PIC) Paving Inspector Certification Practice Test

PIC Work Zone Safety & Traffic Control 2