the supply and installation of signs and associated equipment including but not limited to health & safety signs, corporate signage, road name signs, electronic signs, permanent & temporary traffic signs and permanent vehicle activated signs. lot 1 - health and safety and related signs lot 2 - corporate signs lot 3 - road name signs lot 4 - electronic signs lot 5 - interactive wayfinding signs lot 6 - permanent traffic signs, posts, fixings lot 7 - temporary traffic signs lot 8 - permanent vehicle activated signs and associated equipment the work agreement has the option to extend for up to a further 12months. the total estimated value stated includes the option period. an eauction process may be used to award subsequent call off contracts following the reopening of competition among the parties to the work agreement.