State police use radar while parked on the side of the road, in travel, from bridges and from closed rest stop areas. Although xband and K band are the primary radars, lidar has also been picked up by my detector. It is not unusual to see four or more state troopers (East and West bound) between Fitchburg and Athol. If you notice a trooper on the other side of the highway, odds are you will pass one on your side. Posted speed is 55 mph in this area, many travel at 70 mph. slow drivers make this stretch of road very dangerous because people want to get around them. There are divided highway and two way traffic areas on this road. Athol to Gardner is the area where the road is primarily two way traffic with only a few passing areas. There is a 5 mile stretch with no passing. The road is pretty straight with very few curves. Although called a dangerous road, I feel it is due to people trying to control the cars behind them by driving 50 then speeding up to 65 in the passing areas. This is not an uncommon practice on Route 2 and these people should be targeted for driving to endanger. These people tend to always drive in the left hand lane also making the drive from Eastern Ma to western Ma. More dangerous.