I-91 South of Springfield
Two major traps here. One is a u-turn located under a mile north of the CT border that the Mass State police will sometimes use to monitor traffic.
The other is more interesting. Apparently the Mass Police have now gotten several undercover SUV-type vehicles (it’s really hard to believe because such vehicles can’t go very fast and aren’t great police vehicles, but it’s true). I’ve seen them twice this week on the southbound side. In total, I have passed three vehicles there that got nailed–two were tractor trailers, one was a dump truck, so I’d say preferential targeting of large vehicles.