The other day, I came across a situation where the driver in front of me had stopped on a red light, waiting to take a right turn. As far as I could see, there was no "No turn on red" sign posted anywhere, neither was there any incoming traffic from the left side, nor any pedestrian on the crosswalk.
Here's a snap of that exact intersection taken from Google Street View -
There is one red light straight ahead, which is for cars going straight onto the street. There is another red light towards the right, which is why (I assume) the driver had stopped.
My question is, if there is such a situation where there is a red light for the right turn, but there's no "No right turn on red" sign posted anywhere, what's the right way to proceed?
This is for the state of MA, by the way.
EDIT - The Google Street View link for this intersection, if it helps.