Book 25, Question 121
How do snowplows and salt trucks clear the road?
A snowplow has a big angled blade that pushes snow to the side.
Many also spread salt or sand from the back. Crews watch the weather and plan routes with GPS so they can clear major roads first. Small plows clear sidewalks and bike paths. Stay far away from plows, since the drivers might not see you, and never play in the snow piles.