I do this with some vehicle tracking equipment I run at ski resorts. They run the machines over the snow on a daily basis. After a week or so of passes over t

I do this with some vehicle tracking equipment I run at ski resorts. They run the machines over the snow on a daily basis. After a week or so of passes over the same trail, you get a much better idea of where the average line is. The data my clients typically initially supply me with is usually taken with a single pass using a Garmin unit strapped to the handlebars of an ATV. They often wonder why it differs so much from the results they're getting from the vehicle tracking equipment.