Snow fences, also known as drift fences, are crucial for safety during winter transportation in areas with heavy snowfall. These fences help keep roads and highways clear of snowdrifts, thus preventing dangerous driving conditions. Some other synonyms for snow fence include drift fence, wind fence, and snow guard. A drift fence is typically a barrier made of wooden planks or metal mesh that redirects the direction of prevailing winds, thus reducing the accumulation of snowdrifts. Wind fences do the same job but are often used in areas with high winds but less snow. On the other hand, a snow guard is a short barrier placed on the edge of a roof to prevent snow and ice from sliding off all at once.