I live in a section of Brooklyn (the "flat south section" per this fantastically detailed Wikipedia entry: https://en.wikipedia.org/wiki/List_of_lettered_Brooklyn_aven...) in which the avenues (which run east to west, like Bogotá's calles) are lettered. Some of them, mostly early in the alphabet, were named or renamed in this same way (Albemarle, Beverly, Cortelyou, Ditmas, and so on). The streets running north/south are numbered.

(Interestingly, Avenue Q was renamed Quentin Road to avoid confusion with Avenue O.)

Either way, lettered or named in alphabetical order, I appreciate the lettered/numbered combination. It's a good mix of character and practicality, and it sounds good when you say it out loud ("It's at E 14th and K"). The doubly numbered intersections of Queens always drive me nuts.

A final sidenote: some real estate developers in the early 20th century decided to rename sections of E 11th through 16th from Prospect Park South down through West Midwood to fancy-sounding anglicized names like Stratford, Westminster, Argyle, Rugby, and Marlborough (the SWARM backronym here is useful) so they could make more money selling homes on those streets. It worked. Yet another example of nefarious street naming...