Final answer:
A clover-leaf intersection is characterized by ramps resembling a clover's leaves, with a bridge for non-conflicting traffic flow. Turning maneuvers at a cloverleaf involve right turns onto loop ramps and subsequent left turns onto the intersecting highway. Not all statements about a clover-leaf can be verified without further context.
Step-by-step explanation:
A clover-leaf intersection is a specific type of highway interchange that is characterized by a series of ramps that are shaped like the leaves of a clover when viewed from above. In terms of the provided statements:
- Option A is true; a clover-leaf intersection involves a bridge carrying one road over another to facilitate non-conflicting traffic flow between two highways,
- Option B is not accurate as at a clover-leaf, not all turns are left turns. In fact, drivers make a right turn onto the loop ramps to join the overpass, which then completes a 270-degree turn to facilitate a left turn maneuver onto the intersecting highway.
Regarding the other statements provided as reference:
- The safety of the rabbit crossing the freeway cannot be determined without additional information, such as the distance of the rabbit from the vehicle, the speed of the vehicle, and the rabbit's crossing speed.
- A car moving on a straight road at a constant speed in a single direction allows for predictable traffic flow but the statement's true or false nature is not clear in this context.
- The VCE (Victorian Certificate of Education) example does not provide enough information without a diagram.
- Primary and secondary turns at an intersection can vary in number; therefore, statement C is not necessarily true, and statement D is more accurate.