Since 2008 he has been producing the Essential Evidence series of one-page factsheets unlocking from academia the latest thinking on such impacts for public health as the collisions, congestion, pollution, severance and isolation caused by our car-dependence. Intended audiences of Essential Evidence are local authority staff and councillors, sustainable transport activists and academics. Content covers all health aspects from road transport and sustainable transport studies, aspects of road safety, politics and decision-making biases, car-dependency, and physical activity across the life-course. Every issue reports on at least one peer-reviewed study, ensuring its UK relevance and, where possible, is de-jargonised.