Davenport Street and Ivanhoe Street by Route 22 East
If you come off of Route 22 and make a right onto Davenport (Lukoil gas on the corner/right before Dunkin Donuts). Cops will hide in the way back of the driveway of a residential house and get anyone coming fast down Ivanhoe or coming off of 22. I’ve seen them hide many nights in that house.
(They also hide in the parking lot of Somerville High School which is also on Davenport.)