This textbook attempts to provide basic principles of highway and traffic engineering in a style that fully meets the requirements and interests of the students, teachers, consultants, professional engineers and research workers. The text presented in this book covers various phases of highway and traffic engineering, viz. • Development • Planning • location • Design of Geometry • Structure and Drainage System • Traffic Performance and Control • Materials • Construction and Maintenance • Economics • Environment and Computers. Numerous worked examples, diagrams, tables, etc. are integral part of the main text for learning theory and its applications. This book will be useful for BE (civil), Diploma (civil), ME (transportation) students, teachers and research faculty, as well as for practising engineers and consultants involved in planning, design, supervision, quality control, construction and maintenance of hiway and traffic facilities.