MTO Roadway Design & Engineering 2

Question 1

What is the primary purpose of a superelevation on a curved roadway?

Accepted Answer

To counteract centrifugal force on vehicles

Answer

Superelevation tilts the roadway cross-section to counteract the centrifugal force acting on vehicles navigating a horizontal curve.

Question 2

Which pavement marking indicates a no-passing zone on a two-lane road?

Accepted Answer

Double solid yellow lines

Answer

Double solid yellow lines indicate that passing is prohibited for traffic traveling in both directions.

Question 3

What does the term 'clear zone' refer to in roadway design?

Accepted Answer

The unobstructed area beyond the travel lane for errant vehicles to recover

Answer

The clear zone is the unobstructed, traversable area beyond the edge of the travel lane that allows errant vehicles to recover or stop safely.

Question 4

A 'sag vertical curve' connects two grades where:

Accepted Answer

The road descends then ascends

Answer

A sag vertical curve occurs at a low point where the roadway profile transitions from a downgrade to an upgrade.

Question 5

What is the design standard purpose of a 'design vehicle'?

Accepted Answer

To determine geometric design elements like turn radii for the largest expected vehicle

Answer

A design vehicle is a selected vehicle whose dimensions and turning radius determine the geometric design criteria for roadway elements like intersection radii.

MTO - Ministry of Transportation Practice Test

MTO - Ministry of Transportation Practice Test

MTO Roadway Design & Engineering 2