Ohio Transportation Engineer Certification
Exam Practice Questions And Correct
Answers (Verified Answers) Plus Rationales
2025|2026 Q&A | Instant Download Pdf
1. What is the primary purpose of transportation engineering?
A. To maximize fuel consumption
B. To ensure safe, efficient, and convenient movement of people and
goods
C. To minimize the use of transportation infrastructure
D. To regulate vehicle manufacturing
Rationale: Transportation engineering focuses on planning, design, and
operation of systems for safe and efficient movement of people and goods.
2. The functional classification system divides highways based on:
A. Number of lanes
B. Type of pavement
,C. Service provided and volume of traffic
D. Design speed only
Rationale: Functional classification is based on the roadway’s purpose—
mobility versus accessibility—and the traffic it serves.
3. Which of the following is NOT a typical component of transportation
demand forecasting?
A. Trip generation
B. Trip distribution
C. Traffic light calibration
D. Mode choice
Rationale: Traffic light calibration is part of operations, not forecasting
models which focus on travel behavior.
4. In geometric design, the term “superelevation” refers to:
A. Vertical clearance over bridges
B. Banking of a roadway curve to counteract lateral acceleration
C. Maximum grade on a highway
D. Transition length of a taper
Rationale: Superelevation tilts the road cross-section to help vehicles
maintain traction and reduce skidding on curves.
,5. Which federal agency primarily governs transportation safety standards in
the United States?
A. EPA
B. FHWA
C. OSHA
D. USACE
Rationale: The Federal Highway Administration (FHWA) sets and enforces
highway design and safety standards nationwide.
6. The 85th percentile speed is used for:
A. Maximum vehicle weight determination
B. Bridge load ratings
C. Setting speed limits
D. Calculating pavement strength
Rationale: Speed limits are commonly based on the 85th percentile speed,
representing a speed most drivers consider safe.
7. The term AADT stands for:
A. Average Annual Demand Traffic
B. Average Annual Daily Traffic
C. Annual Average Design Time
D. Aggregate Annual Data Trend
, Rationale: AADT is the total volume of vehicle traffic over a year divided by
365 days.
8. What is the primary factor influencing sight distance design?
A. Weather
B. Driver perception-reaction time
C. Pavement type
D. Vehicle color
Rationale: Sight distance calculations rely on driver reaction time, vehicle
speed, and stopping distance.
9. A design vehicle is selected to represent:
A. The average car on the road
B. The most critical vehicle that affects design elements
C. The heaviest truck on record
D. The smallest possible vehicle
Rationale: The design vehicle governs lane width, turning radii, and
intersection layout for safety and efficiency.
10. The “green time” in a traffic signal phase refers to:
A. Duration of all-red clearance
B. Time allocated for traffic to move through an intersection
Exam Practice Questions And Correct
Answers (Verified Answers) Plus Rationales
2025|2026 Q&A | Instant Download Pdf
1. What is the primary purpose of transportation engineering?
A. To maximize fuel consumption
B. To ensure safe, efficient, and convenient movement of people and
goods
C. To minimize the use of transportation infrastructure
D. To regulate vehicle manufacturing
Rationale: Transportation engineering focuses on planning, design, and
operation of systems for safe and efficient movement of people and goods.
2. The functional classification system divides highways based on:
A. Number of lanes
B. Type of pavement
,C. Service provided and volume of traffic
D. Design speed only
Rationale: Functional classification is based on the roadway’s purpose—
mobility versus accessibility—and the traffic it serves.
3. Which of the following is NOT a typical component of transportation
demand forecasting?
A. Trip generation
B. Trip distribution
C. Traffic light calibration
D. Mode choice
Rationale: Traffic light calibration is part of operations, not forecasting
models which focus on travel behavior.
4. In geometric design, the term “superelevation” refers to:
A. Vertical clearance over bridges
B. Banking of a roadway curve to counteract lateral acceleration
C. Maximum grade on a highway
D. Transition length of a taper
Rationale: Superelevation tilts the road cross-section to help vehicles
maintain traction and reduce skidding on curves.
,5. Which federal agency primarily governs transportation safety standards in
the United States?
A. EPA
B. FHWA
C. OSHA
D. USACE
Rationale: The Federal Highway Administration (FHWA) sets and enforces
highway design and safety standards nationwide.
6. The 85th percentile speed is used for:
A. Maximum vehicle weight determination
B. Bridge load ratings
C. Setting speed limits
D. Calculating pavement strength
Rationale: Speed limits are commonly based on the 85th percentile speed,
representing a speed most drivers consider safe.
7. The term AADT stands for:
A. Average Annual Demand Traffic
B. Average Annual Daily Traffic
C. Annual Average Design Time
D. Aggregate Annual Data Trend
, Rationale: AADT is the total volume of vehicle traffic over a year divided by
365 days.
8. What is the primary factor influencing sight distance design?
A. Weather
B. Driver perception-reaction time
C. Pavement type
D. Vehicle color
Rationale: Sight distance calculations rely on driver reaction time, vehicle
speed, and stopping distance.
9. A design vehicle is selected to represent:
A. The average car on the road
B. The most critical vehicle that affects design elements
C. The heaviest truck on record
D. The smallest possible vehicle
Rationale: The design vehicle governs lane width, turning radii, and
intersection layout for safety and efficiency.
10. The “green time” in a traffic signal phase refers to:
A. Duration of all-red clearance
B. Time allocated for traffic to move through an intersection
