Just a little local knowledge. The A631 Wickersley, that's the major dual carriageway coming out of Rotherham to the M18. Residential at the Rotherham end, but with decent railings at the risky bits and a even a footbridge.
It's the road that Rotherham council has pushed all inbound traffic from the M18 for Mexborough, Swinton, Kilnhurst, Thrybergh, Dalton, Denaby and Ravenfield down by making the B6093 at Bramley an Eastbound only one way road for 25 yards despite the objections of everyone living there -who now face a few miles round trip into the anti-car paradise of Rotherham itself, or the narrow, hedged in Death Star canyon of Dalton Lane to get to the other side of that 25 yards.
http://www.rotherhamadvertiser.com/html/news/fp.asp?ID=5118
Oh, and my opinion on the police officer? The vast majority of the traffic on the A631 runs over the limit too, so he should suffer the same fate as they do.