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I use Delorme Street Atlas on the laptop and my GPS. I plan the trip on the laptop and make changes as desired. Also have low bridges POI on Street Atlas. Then I check the track the GPS plots, adjust as needed and make the trip. I use it to warn me ahead of time when a turn is coming. I have missed a couple turns at complicated exits as documented earlier. It is a driving guide and my map and compass on the dash. I remember they are only as good as the information inputted and as accurate as the current update can make it.
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