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TPCB Professional Traffic Operations Engineer Practice Sample Questions:

1. According to the AASHTO Green Book, what is the minimum stopping sight distance for a road with a design speed of 70 mph, a downgrade of 3%, and a driver eye height of 3.5 feet?

A) 730 feet
B) 615 feet
C) 905 feet
D) 820 feet

2. Yan, a consulting environmental engineer, discovers a garbage company employee dumping liquid into a stream, which is a violation of environmental regulation. After the yard manager dismisses her concerns, what is Yan's most appropriate next step?

A) Terminate her consulting with the garbage company
B) Assume that since it has gone on for a long time, there is no major hazard being created and forget what she saw
C) Advise the local town council of the situation at the next opportunity
D) Write a letter to the garbage company president outlining what she discovered and advising that the dumping practice is an environmental regulation violation

3. In a temporary traffic control zone on a freeway with a speed limit of 65 mph, a 12-foot lane is to be closed.
Using the MUTCD formula L = W × S, what is the required taper length?

A) 910 feet
B) 650 feet
C) 850 feet
D) 780 feet

4. What is the primary function of a traffic signal?

A) To maximize the capacity of an intersection
B) To minimize delay and travel time to all users
C) To alternately assign the right-of-way to various traffic movements at an intersection
D) To provide protection for pedestrians and other non-motorized users

5. For an approach to a signalized intersection with a posted speed limit of 40 mph, a cross street width of 70 feet, and level grades, what is the minimum total change period (Yellow Change plus Red Clearance intervals) using the "ITE procedure)?

A) 5.5 seconds
B) 4.7 seconds
C) 6.1 seconds
D) 3.8 seconds

Solutions: