What is generally NOT a purpose of installing edge lines on roadways?

The purpose of edge lines on roadways is primarily centered around enhancing safety and guiding traffic behavior. Edge lines are typically marked to provide clear visual cues for drivers regarding the boundaries of the roadway, especially useful during low-visibility conditions like nighttime or inclement weather.

Discouraging travel on road shoulders is a fundamental function of edge lines, as they visually inform drivers that transitioning off the pavement could lead to instability or collisions. Edge lines also serve to guide drivers past objects or hazards that are close to the edge of the roadway, ensuring that vehicles maintain a safe distance from these potential dangers, further contributing to overall road safety.

Though edge lines can help delineate travel areas and should intuitively influence driver behavior regarding parking near intersections, their primary design does not explicitly serve the purpose of prevention of parking. Other traffic control devices, such as no-parking signs, are much more effective for this specific purpose. Therefore, the purpose of installing edge lines does not include preventing parking near intersections, making it the option that does not align with the common intended functions of edge lines.