Liverpool Road from Smoky Hill at the top to Arapahoe Road at the bottom is one long hill with no stoplights, and there are three intersections on the west side going into the Greenfield residential neighborhood. Marked and unmarked units from Arapahoe County/Centennial can be frequently found in any of those intersections, pretending to be a car waiting to make a turn onto Liverpool, but really waiting to raise some revenue for the City of Centennial. Because there are no stoplights on Liverpool, they get people speeding both up the hill and down the hill. The speed limit is 40 on Liverpool, so plan on riding your brakes going down the hill in order not to speed.