Question

1. which statement best describes the primary function of lane - use control signals?

a) authorization or prohibition of roadway lane use to manage traffic flow
b) indication of pedestrian crossing times at intersections
c) display of speed limits for specific road segments
d) provision of information about upcoming service areas

Explanation:

Lane - use control signals are designed to regulate how lanes on roadways are used. This regulation can involve allowing (authorization) or not allowing (prohibition) vehicles to use a particular lane. The main goal of this regulation is to manage traffic flow effectively.
Pedestrian crossing times at intersections are usually indicated by pedestrian signals (like walk - don't walk signs), not lane - use control signals. Speed limits for specific road segments are shown on speed limit signs. Information about upcoming service areas is provided by service area signs.

Answer:

A. Authorization or prohibition of roadway lane use to manage traffic flow