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condensed E/W and N/S paras, & other changes
Knowing the logic behind road numbers can help you navigate when you are lost.
Roads that circumscribe major metropolitan areas have three digits. Thus, 495 circumscribes the Boston area. The last two digits names (at least one of) the interstate(s) that this road stems from and connects to.
Roads that run north/south have odd numbers and roads that run east/west have even numbers. Thus, 95 runs from Florida to Canada, and Route 66 is perhaps the most famous example of an American east/west road. ''There are some caveats to this, however.'' Local parts of a north/south route may run east/west for relatively short spans, and vice versa. Even though Route 1 in Pennsylvania and New Jersey, for example, is odd numbered, long stretches of it travel farther east/west than north/south.
Knowing this logic can (sort of) help you navigate when you are lost.