Railways are frequently promoted as one of the most sustainable modes of transport. However, their impact will in practice be significantly affected by the ways in which they are designed, constructed, and used. This book provides a comprehensive overview of the issues involved in planning, engineering and operating sustainable railway systems. It introduces and examines a wide range of aspects of railway systems and their interrelationships with other human and natural systems. For each of these aspects it considers the key factors that affect the sustainability of the railway. Students,...