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TPCB Professional Traffic Operations Engineer Practice Sample Questions:

1. A signalized intersection has a peak hour factor (PHF) of 0.80 based on 15-minute counts of 400, 350, 300, and 250 vehicles. What is the hourly volume?

A) 1,500 vehicles/hour
B) 1,600 vehicles/hour
C) 1,300 vehicles/hour
D) 1,400 vehicles/hour

2. Which measure will typically provide the highest benefit-cost ratio in terms of reduced delay at a signalized intersection?

A) Add a right turn lane
B) Modernize signal control equipment
C) Add a left turn lane
D) Update signal timing and provide coordination

3. According to the Model Rules, Section 240.15, Rules of Professional Conduct, licensed professional engineers are obligated to:

A) Express public opinions under the direction of an employer or client regardless of the knowledge of subject matter
B) Practice by performing services only in the areas of their competence and in accordance with current standards of technical competence
C) Ensure the design documents and surveys are reviewed by a panel of licensed engineers prior to affixing a seal of approval
D) Do whatever is necessary to secure work, including offering directly or indirectly, services or other compensation for contracts

4. Which of the following statements about Pedestrian Hybrid Beacons is true?

A) A Flashing Yellow indication shall be displayed continuously unless the pedestrian pushbutton is activated
B) The beacon faces shall consist of two signal sections, one with a circular red and one with a circular yellow indication
C) Pedestrian Hybrid Beacons shall not be installed at locations where vehicle speeds exceed 30 mph
D) A pedestrian signal head shall be installed at each end of the marked crosswalk

5. A traffic engineer conducted a study on a basic freeway segment. The average space mean speed was 30 mi/h.
The flow rate was 1,800 veh/h. What was the density of flow?

A) 45 veh/mi
B) 30 veh/mi
C) 75 veh/mi
D) 60 veh/mi

Solutions: