From the NY Post:
The city will change the lettering on every single street sign - at an estimated cost of about $27.5 million - because the feds don't like the font.
Street names will change from all capital letters to a combination of upper and lower case on roads across the country thanks to the pricey federal regulation, officials said Wednesday.
By 2018, MADISON AVE. will become Madison Ave. and will be printed in a font called Clearview, the city Department of Transportation says.
The Federal Highway Administration says the switch will improve safety because drivers identify the words more quickly when they're displayed that way - and can sooner return their eyes to the road.
For some reason, Bloomberg threw a hissy fit when asked about it.