Sudbury Rd after crossing Rt. 2
The speed limit is 30mph over the upcoming bridge, then it turns into 35mph, then back to 30mph. Assuming you’re travelling towards Nine Acre Corner, on the right there’s usually a policeman there during rush hour, either right after it turns to 30mph, but always somewhere past the turn for Heath’s Bridge Rd. and before the fork for Oxbow / Garfield Rd.