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Discussion Starter · #1 ·
I have been trying out various low clearance avoidance tools after witnessing a horrible accident and having a close call myself. Obviously I look out for the signs ahead, but not all bridges are posted and it's no good for planning a route anyway.


So what are the options?




Rand McNally Motor Carrier Road Atlas


Pros - Much more than a low clearance list, with an abundance of useful information.


Cons - Limited to just over 1000 low clearances. Can't use while driving. Costs around $50.


Available at: Amazon.com: Rand McNally 2009 Deluxe Motor Carriers Road Atlas (Rand Mcnally Motor Carriers' Road Atlas Deluxe Edition) (9780528942129): Rand McNally and Company: Books




POI-Factory.com low clearance POI database for GPS


Pros - Free to download. Accurate. Ready to install.


Cons - Limited data, not much more than 300 entries.


Available at: Low Clearance Underpasses | POI Factory




DiscoveryOwners.com low clearance POI database for GPS


Pros - Free to download. Accurate.


Cons - Limited data, approximately 400 entries. Many duplicates across several databases. Only available in text format.


Available at: http://www.discoveryowners.com/cginfolinks.htm




LowClearances.com low clearance POI database for GPS


Pros - Huge database, up to 10 times larger than the others available. Accurate. Regularly updated. Ready to install.


Cons - Costs $20 for annual subscription.


Available at: Low Clearance GPS Data






There are also a few fully integrated GPS systems available, but these are very expensive and I cannot vouch for their accuracy or the number of low clearances in their databases.


Hope this is of use.
 
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