[Talk-us] Prioritizing multi-banded route designators (multiple overlaps) on ways: the "Principal route designator" concept

[Alexander Jones]

Kerry Irons wrote:

> Peter,
> 
>  
> 
> The "Miracle Mile" is probably an anachronistic reference, but I believe
> it is a reference for a section of Chicago's Lake Shore Drive (also US
> 41).
> Other towns have used this reference to their business district.  Note the
> reference in Billy Joel's "It's Still Rock and Roll to Me."  For people
> like myself who visit Chicago, "the Dan Ryan" and "the Eisenhower" don't
> mean much, but I-90 and I-290 appear not only on maps but on exit signs,
> wayfinding signs, and mile posts.  In the US, FWHA and the MUTCD have
> standards for route numbering signs and typically ALL of the routes on a
> given piece of pavement show up at key junctions (mile post signs will
> only have the primary route, however that was determined).

Chicago doesn't have a "Miracle Mile", at least not one that I've heard of, 
but part of Michigan Avenue is the "Magnificent Mile". Maybe that's what you 
were thinking of.

Alexander