Although Transport for London (TfL) has a commitment to ensuring its bus fleet is zero emission by 2034, that is still 13 years away. Has any thought been given to whether liquid petroleum gas (LPG) could be used as a transition fuel for the older diesel and hybrid buses that are set to be on our roads for over a decade?

Transport for London (TfL) has reviewed the use of liquid petroleum gas (LPG) and other similar fuels, and concluded that the costs of such a transition - for what would be a relatively short period of time until the fleet becomes zero emission - would not be value for money. With an entirely Euro VI fleet, local emissions have reduced significantly over my time in office, and the fleet of hybrid diesel double deck buses has also reduced carbon emissions. TfL’s focus now is on a transition to a fully zero emission bus fleet and, with the right funding in place, this is the best way to achieve further emission reductions over the coming years.