There are plenty of fancy snow throwers on the market. For more challenging jobs, you may want to rely on a robot like the SnowBot Pro. This is a commercial-class self-driving snow clearing robot that removes snow from sidewalks and walkways. It uses GPS and sensors to follow a per-determined path and avoid obstacles.
More gadgets like this: here
A single SnowBot Pro clears what 6 people can do in 2 hours in less than 1.5 hours. It has a 4′ wide rotating brush to get the job done.
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