At an unsignalized intersection, the sight distance needed for a driver on the minor road to enter or cross the major road safely is called:
Correct answer: B. Intersection sight distance
- A. Stopping sight distance
- B. Intersection sight distance
- C. Headlight sight distance
- D. Decision sight distance
Explanation
Intersection sight distance allows a driver to see enough of the major road to accept a gap and complete the intended manoeuvre safely. Stopping sight distance concerns stopping before an obstruction, while headlight sight distance is mainly used for night-time roadway design.
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About Transportation Engineering
Transportation engineering covers highway planning and alignment, traffic studies, road geometric design, pavement materials and flexible or rigid pavement construction. It also includes railway, airport and traffic engineering concepts such as sight distance, superelevation, signals, capacity and level of service, distinguishing pavement failure from poor geometric design.
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