The Dominion Road Business Association (DRBA) has put forward trackless trams – which use rubber tyres and navigate via GPS on existing roads – as being the best solution to mass transit along the traffic-clogged route, Stuff reports. But opinions are divided as to how effective the project will be, with some stating trackless trams will avoid the “worst features of light rail” such as disruption and high costs, while others note there are other issues at play that the trams won’t adequately address.