Our product range is designed to simplify and reduce installation and maintenance costs involved in Traffic Signal, Street Lighting, Signage and Street Furniture installations Bolton MBC have just constructed several refuge islands throughout the town, using the NAL RS140DF Retention Sockets for the wide based poles and RS50x50 Retention Sockets The NAL RS Post installer was recently used by Wokingham Council to simplify the installation of Siemens ANPR cameras to existing traffic signals