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TPCB Professional Traffic Operations Engineer Practice Sample Questions:

1. 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) 3.8 seconds
B) 4.7 seconds
C) 5.5 seconds
D) 6.1 seconds

2. On a road with a design speed of 50 mph and level grades, what is the AASHTO minimum stopping sight distance?

A) 930 feet
B) 425 feet
C) 325 feet
D) 675 feet

3. By using daily and monthly expansion factors, future raw traffic count can be adjusted to estimate AADT. If the April ADT for a road is 3078 and the AADT for the road is 3419, what is the April expansion factor?

A) 0.90
B) 1.72
C) 1.53
D) 1.11

4. Which of the following is not a reason professionals must adhere to a code of ethics?

A) Professionals receive above-average compensation
B) Professions are responsible for training other professionals
C) Professions are self-regulating
D) Professionals have autonomy

5. What is the reciprocal of speed?

A) Density
B) Travel time
C) Headway
D) Flow rate

Solutions: