The Rand McNally TND 740 is a GPS unit designed for use in the commercial trucking industry. As such, it offers processing power, route planning capabilities, and data relevant only to trucks, such as shipping and bridge weight restrictions. Additionally, as Rand McNally has been working with the trucking industry for decades to help develop optimized routes, the Rand McNally TND 740 is engineered to put those years of experience to good use by enabling truckers to find and take the route that is optimal for trucks