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Better routing through research

Since its introduction, the TND™ has boasted the best data in its class. How do we maintain it? Our Geographic Information Systems team spends countless hours each year researching Rand McNally’s proprietary truck data.

Here we’ve opened the vault to show just some of what goes into every one of our truck GPS devices.

In this map of designated truck routes in the U.S. and Canada, some state outlines are recognizable just by the shape and density of the road network.

In this map of designated truck routes in the U.S. and Canada, some state outlines are recognizable just by the shape and density of the road network.

You've seen weigh stations on the TND, but here the numbers by state.

You’ve seen weigh stations on the TND, but here the numbers by state.

Did you know low bridges are concentrated in areas that had a lot of railroad tracks back in the day? And that New York has more low clearance areas than any other state?
Did you know low bridges are concentrated in areas that had a lot of railroad tracks back in the day? And that New York has more low clearance areas than any other state?

 

It's important to know where you can stop for the night. The TND shows truck stops and rest areas with overnight parking.

It’s important to know where you can stop for the night. The TND shows truck stops and rest areas with overnight parking.

 

The TND is the only truck GPS device that includes routing specific for doubles.

The TND is the only truck GPS device that includes routing specific for doubles.

 

Triples are more rare, but we've got them covered.

Triples are more rare, but we’ve got them covered.

 

Everything's bigger in Texas. Including the concentration of CAT scales.

Everything’s bigger in Texas. Including the concentration of CAT scales.

 

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