TFL speeds the 'ultra low' emission bus rollout
" Environ400 on route 15 - London bus network " by Kevin.B - Own work . Licensed under CC BY-SA 3.0 via Wikimedia Commons . TFL is investing more into more environmentally friendly and cleaner buses for London streets. From their press release More than 300 buses with the latest Euro VI engines will be operating on London's roads by the end of this year, Transport for London (TfL) announced today. Over two thirds of these (215) will be hybrid diesel-electric double decker buses. Under the ULEZ proposal, all buses driving in central London from 2020 will need to meet the Euro VI standard for NOx emissions. The effectiveness of Euro VI engines in reducing harmful emissions has been substantiated in testing by TfL that re-creates real world driving conditions in London. During this testing, a bus with a Euro VI Engine was found to have 95 per cent lower NOx emissions than a bus with a Euro V engine (down from 10 g/km to 0.5 g/km). This test result correlates wit...