== Advertisment? == 

 There seems to be an incredible amount of very positive information here added by user Pushcreativity. Interestingly this is the only article Pushcreativity has edited or linked to. Also an image by a company called Britpave has been uploaded here by Pushcreativity. Britpave manufacture and install concrete step barriers, even maintaining a website http://www.concretebarrier.org.uk/ to advertise this.