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<div class="moz-cite-prefix">On 11/27/13 2:46 PM, John F. Eldredge
wrote:<br>
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You also have compass-point letters used to distinguish between
branches of the same route. For example, US 31 runs north/south. A
portion of it branches off as US 31W, which runs roughly parallel,
some miles westward of US 31, and eventually merges back into it.<br>
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in the Hudson Valley of NY, we have US 9/US 9W, which behave<br>
similarly; 9 is on the east side of the river south of Albany,<br>
and 9W is on the west side.<br>
<br>
(on top of that, NYS has a thicket of state routes which are<br>
spurs and loops off of 9/9W, e.g. NY 9A, 9B, ... 9H, 9J...<br>
<br>
mapping in NY is fun. wheeeeee!)<br>
<br>
richard<br>
<br>
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