Cities across the world are facing unprecedented challenges in traffic management and transit congestion while coping with growing populations and mobility aspirations; existing policies that aim to tackle congestion and create more sustainable transport futures offer only weak remedies. In Gridlock: Congested Cities, Contested Policies, Unsustainable Mobility, transport consultant John C. Sutton explores how two competing discourses in transport policy and planning practice - convivial and competitive ideologies - lead to contradictory solutions and a gridlock in policy as well as...