While walking back from my weekly
ultimate frisbee game on the
Esplanade, I noticed an odd sign suspended above
Storrow Drive Westbound in
Boston. The large road sign was hanging below a bridge and read "Reverse Curve." After thinking about it, I realized I had no idea what this meant.
Dictionary.com provides this
illuminating definition: "Reverse curve (
Railways), a curve like the letter S, formed of two curves bending in opposite directions."
Another one for
road signs we do not understand.