“…13,56 Reaching a consensus can be difficult because transport is complex and multifaceted, and policy interventions can have unintended consequences. [57][58][59] Linking and packaging policies are vital to generate synergies and cobenefits between measures, including linking GHG reduction goals with other sustainable development goals, such as increasing energy security, road safety, public health, increasing economic productivity and air pollution, and improving equity and access. 60,61 A survey and interviews carried out for this paper among local and national policy advisors in Europe, Asia, Africa, and the Americas show that the lack of funds, lack of suitable technologies, and public opposition are not considered to be the main barriers for the take-up of sustainable transport measures.…”