What challenge do drifted snow create on roadways?

Drifted snow creates hazardous conditions on roadways primarily because it can obscure visibility, reduce traction, and create unstable surfaces for vehicles. When snow accumulates in drifts, it can block lanes and intersections, making it difficult for drivers to navigate safely. This buildup can lead to vehicle accidents, particularly if drivers are unprepared for sudden changes in road conditions. Additionally, drifted snow can obscure road markings and signage, further complicating navigation and increasing the risk of collisions.

The other options do not accurately reflect the implications of drifted snow on roadways. Drifted snow does not require minimal maintenance; instead, it necessitates significant intervention to clear and maintain safe driving conditions. It does not enhance road traction; on the contrary, it tends to worsen it by forming uneven and slippery surfaces. Lastly, drifted snow is not easy to manage due to its variable nature and the challenges it presents to clearing efforts.