FDOT Traffic Control and Maintenance of Traffic 3

Question 1

What is the minimum retro-reflectivity level required for temporary orange construction zone signs on FDOT projects?

Accepted Answer

Type III sheeting

Answer

FDOT requires a minimum of Type III retro-reflective sheeting for temporary orange work zone signs to ensure adequate nighttime visibility.

Question 2

According to FDOT MOT requirements, what must happen to traffic control devices during nighttime hours when active work is not occurring?

Accepted Answer

Unnecessary devices must be removed or covered

Answer

FDOT requires removal or covering of traffic control devices that are not applicable to nighttime conditions to avoid confusing drivers unnecessarily.

Question 3

What is the required minimum height above the road surface for temporary overhead signs installed over travel lanes in FDOT work zones?

Accepted Answer

14 feet 6 inches

Answer

FDOT requires a minimum overhead clearance of 14 feet 6 inches for temporary signs installed over travel lanes to accommodate legal vehicle heights.

Question 4

What is a 'channelizing device' as defined in Florida's MUTCD for work zones?

Accepted Answer

A portable traffic control device that guides drivers through a work zone

Answer

Channelizing devices are portable traffic control devices such as cones, drums, and tubular markers that guide drivers safely through or around work zones.

Question 5

On FDOT projects, when is a flagger required in addition to traffic control devices for a lane closure?

Accepted Answer

When sight distance is restricted or device visibility is impaired

Answer

Flaggers supplement traffic control devices when sight distance is restricted, visibility is impaired, or devices alone are insufficient to safely control traffic.

FDOT - Florida Department of Transportation Practice Test

FDOT - Florida Department of Transportation Practice Test

FDOT Traffic Control and Maintenance of Traffic 3