Final answer:
Contraflow reserve lanes are designated for traffic to flow in the opposite direction of normal traffic to alleviate congestion, typically marked with distinct signs and separated by barriers.
Step-by-step explanation:
Contraflow reserve lanes are lanes that allow traffic to flow in the opposite direction of the surrounding lanes, usually during peak traffic times or during certain conditions to alleviate congestion. They are typically separated by traffic cones, barriers, or other temporary or permanent signs. Contraflow lanes are often used in highway constructions zones, during evacuations, or in areas where traffic patterns need to be managed dynamically. You might recognize these lanes as ones with reversible traffic direction signs or signals indicating the direction of traffic flow is opposite to what is normally expected on that side of the road.
The correct answer to the given question is c. Lanes allowing traffic to flow in the opposite direction. These lanes are not specifically reserved for bicycles, emergency vehicles, nor are they dedicated to high-speed vehicles. Instead, they are adapted for use by general traffic, under specific conditions determined by traffic management authorities.