The Bridgewater/Roxbury Resident Trooper's Office is urging drivers not to speed this holiday season.  They are reminding motorists of the speed limits on certain roadways including Route 67.  The limit is 35, but the average speed is 41.  Route 371 has a 30 mile an hour speed limit, with an average speed of 36.  While the speed limit on Hut Hill Road is 35, Troopers say the average speed has been 32.