The NAL Guardian Goalpost is a lightweight GRP, telescopic red and white post which conforms in full to the “GS6 avoidance of danger from overhead electric powerlines”. The system is easily transported to and around site. Assembly to full carriageway clearance height can be achieved in minutes by one man. The system is supplied with an option of two stable base types. On completion of works the product can be removed from site and reused or stored easily. This system offers many cost and environmental advantages over the traditional pole in barrel method.