What is the primary purpose of designing highway features?

Answer: B — To ensure safety and comfort for vehicles and drivers.

The primary purpose of designing highway features primarily revolves around ensuring safety and comfort for vehicles and drivers. This involves creating roadways that are structurally sound, well-engineered, and capable of accommodating various types of traffic while minimizing risks associated with accidents. Key elements in highway design include appropriate lane widths, clear signage, proper sight distances, safe intersections, and adequate shoulder space. Design features must also address vehicle dynamics, such as turning radii and slope grading, to ensure that drivers can operate their vehicles safely under different conditions. By prioritizing safety and comfort, highway design contributes significantly to the overall efficiency of transportation systems, reduces the likelihood of collisions, and promotes a smoother flow of traffic, ultimately enhancing the travel experience for all road users. Other aspects, like landscaping, property values, and construction costs, may be considered in the broader planning and development process, but they are secondary to the primary goal of safety and functionality in the highway environment.