Railway engineering is a complex branch of engineering which deals with the vast subject of building, designing, constructing and operating all types of railway networks. It encompasses my elements from a lot of different engineering fields like electrical engineering, industrial engineering , civil engineering, mechanical engineering, production engineering and computer engineering, etc. This book explores all the important aspects of railway engineering in the present day scenario. It unfolds the innovative aspects of this area which will be crucial for the holistic understanding of the subject matter. For someone with an interest and eye for detail, this textbook covers the most significant topics in the field of railway engineering. It is a complete source of knowledge on the present status of this important field.