sketch wrote:I used to think the same way, that a US highway should always be "Major". But US-90 meanders through New Orleans on a number of surface streets with seemingly little rhyme or reason. The bits of streets which are part of US-90 aren't any different than the rest of Broad, Canal, or Claiborne, and they aren't any different than the other roads in the area, as far as routing is concerned. And still, if the difference between Major and Minor had nothing to do with routing, it'd look a bit silly if some segments of some streets were wider than others for, as it seems to the average user, no reason.
Hwy 90 meanders though New Orleans as a highlighted road in any Atlas. It's not any different. Some people like to travel on the US Highways because they get to see things other than boring interstate.
My Garmin had an "Avoid Freeways" option and it would follow the US Highways just like that.