Mid-afternoon traffic heading for Edinburgh along the A701 Straiton Road. Up ahead is Straiton Junction, where it crosses the city bybass (A720) using the complicated lane arrangement as indicated on the road sign. If this were the morning rush hour, presumably some of these drivers would instead opt to turn left here, which is the entrance to the Straiton Park & Ride, and let a bus carry them over the junction and into the city.