Walking is the most natural form of mobility; however cities have not always evolved to accommodate the needs of pedestrians and walking has in many cases been neglected in the development of transport systems. Improving the pedestrian environment can contribute significantly to meeting the challenges of climate change, air pollution and health. This report aims to present decision-makers with hard evidence on the important place of walking in transport policies and provide guidelines for developing a safe environment conducive to walking. This is an essential contribution to creating liveable cities. Every single trip begins and ends by walking.