US 522 north of Front Royal, between the shenandhoa north fork bridge and the intersections of i66. Troopers/sheriffs sit in the median across from the dump or more northward across from the McDonalds, and watch traffic either way. Take note, South in this area the speed limit is 25, from the Exxon all the way into town, **not** just at the posted 25 mph standing radar speed sign. And North bound in this same area is 45 mph. The lower southbound limit is to slow the speeds of people heading into the bridge construction.