MOT Temporary Traffic Control Plans 4

Question 1

A TTC plan for a multi-lane highway requires a crossover for construction traffic. What is the primary concern when designing this crossover?

Accepted Answer

Ensuring adequate sight distance and geometric design to prevent conflicts

Answer

Crossover design must provide adequate sight distance and safe geometry to prevent vehicle conflicts between construction and public traffic.

Question 2

What is the primary purpose of a 'termination area' in a TTC zone layout?

Accepted Answer

To warn drivers that the work zone is ending and guide them back to normal lanes

Answer

The termination area transitions traffic from the restricted work zone back to normal lane use at the downstream end.

Question 3

Under MUTCD Part 6, what is the recommended advance warning sign spacing for a 55 mph road in a rural area?

Accepted Answer

500 feet between each sign

Answer

MUTCD Table 6C-1 recommends advance warning sign spacing of approximately 500 feet for 55 mph rural roadways.

Question 4

A TTC plan includes portable temporary traffic signals. Which condition MUST be planned for in case of signal malfunction?

Accepted Answer

A contingency plan such as flagger control to replace the failed signal

Answer

TTC plans using temporary signals must include a contingency for signal failure, typically flagger control to maintain safe traffic flow.

Question 5

What information is NOT typically required on a formal TTC plan drawing?

Accepted Answer

Contractor's payroll records

Answer

Payroll records are a contract compliance document unrelated to TTC plan content; the plan focuses on traffic control layout and devices.

(MOT) Maintenance of Traffic Certification Practice Test