What is the goal of "stormwater management" in highway construction?

The goal of stormwater management in highway construction is primarily to control rainwater runoff and minimize erosion. Proper stormwater management techniques are essential to prevent flooding, protect waterways, and reduce the environmental impact of construction activities. By managing stormwater effectively, highways can be designed to mitigate the effects of heavy rainfall, ensuring that runoff is appropriately directed and treated to minimize pollution and soil erosion.

This approach helps in maintaining the structural integrity of the highway and surrounding areas. It also plays a crucial role in managing the health of local ecosystems by controlling sediment and pollutants that could be carried away by runoff into rivers, streams, and other bodies of water.

The other options do not align with the primary purpose of stormwater management. For instance, improving traffic flow, enhancing aesthetics, or reducing materials could be important aspects of highway construction overall, but they do not directly relate to the fundamental functions of stormwater management.