Metroline’s latest zero-emission, electric double deck buses hit the streets of London today. Route 134 operating from Potters Bar Garage adds to Metroline’s growing fleet of almost 100 zero-emission, electric buses by the end of this year. Together with Route 43, also operated by Metroline,  the two routes will be London’s first, end-to-end fully electric double deck bus routes by the end of the summer. The conversion of the two routes, which carry around 18.5 million people across the City annually, to zero emission vehicles will further assist in improving air quality in London.