Out-of-home advertising has seen huge growth in 2015, prompting a rise in spend in the channel, and its evolution is set to continue as the industry rolls out automated buying next year. Over the past few weeks, every out-of-home (OOH) advertising frame in the UK has been given a 10-digit code to automate trading of sites between media agencies and owners. The code allocator, called Space, will cut man hours and work in OOH ad trading and planning, according to the UK marketing body for the industry, Outsmart.