It recently occurred to me that street widths vary a lot more in some cities than in others. For instance, it seems like street widths in London tend not to vary that much between major arteries and side streets, while in Paris and Berlin there is quite a large gap between major thoroughfares and small residential streets. NYC street widths also vary by quite a lot, particularly in the areas of the city that were not gridded according to the Commissioners Plan.
Above Houston Street, Manhattan's grid is very strict:
Standard e/w cross streets: 60 feet
Major e/w cross streets: 100 feet
Standard n/s avenue: 100 feet
Park Avenue: 140 feet
At Houston and below, the street widths are very irregular. Most are narrower than above Houston (50 feet or less), but a few major corridors are much wider than streets above Houston:
Houston Street (e/w): 125 feet
Delancey (e/w): 150 feet
Bowery (n/s): 115 feet
Allen Street (n/s): 138 feet
Brooklyn's grid varies even more than Manhattan's. DUMBO, Brooklyn Heights, and downtown Brooklyn have narrow streets with widths less than 60 feet in most places, like neighboring lower Manhattan. Williamsburg and Bushwick streets are mostly all 60 feet, with a few exceptions. The rest of north and central Brooklyn has streets and avenues of 70 feet in width. And roughly around Empire Boulevard and on south, Brooklyn's grid mimics Manhattan's grid. On the upper end, Brooklyn's widest streets get much wider than Manhattan's:
Adams Street (n/s): 160 feet
Atlantic Avenue (e/w): 120 feet
Eastern Parkway (e/w): 210 feet
Linden Boulevard (e/w): 170 feet
Kings Highway (n/s): 140 feet
Ocean Parkway (n/s): 210 feet
Excluding freeways, how much do street widths vary where you live?