Indiana Written Drivers Practice Test 2025 - Free Drivers License Practice Questions and Study Guide

The correct answer is B: People, Vehicles, and Roadways.

The three essential parts of the highway transportation system are:

1. People: This includes drivers, pedestrians, passengers, and anyone using the road system.

2. Vehicles: This refers to all types of vehicles using the roadway, such as cars, trucks, motorcycles, bicycles, and buses.

3. Roadways: This encompasses the physical infrastructure where vehicles travel, including streets, highways, bridges, and tunnels.

Options A, C, and D do not accurately represent the three main components of the highway transportation system as specified in the question.