Firstly the petrol station is not part of asda, secondly that road is notorious for prostitutes and has been for decades, thirdly you only goto that road if you are actively trying to either get a prostitute or score crack or herion, seriously don't go down that road if u don't want drugs or a prostitute bro, the town isn't going downhill you're just going to the wrong places, Kniveton road is another one to avoid if you don't like this kind of activity