This book focuses on the adding train paths (ATP) problem for scheduling additional trainservices in an initial cyclic timetable. Many contributions are made to addressing the problems. (1)The hybrid timetable concept named " cyclic + noncyclic" timetable is proposed to describe the pattern of the timetable. (2) The integration of timetable scheduling and rescheduling problems is considered both the disruptions in existing operations and establishments of schedules for extra trains. (3) An event-activity graph is constructed to characterize the ATP problems. (4)The initial trains ′modifications, additional trains′ schedules and train-set circulation are decided simultaneously to copewith the shortage of train-set capacity.
This book is to serve as both a graduate level text and a general professional reference. It isoriented towards the readers who have had an introductory level course in train operation planning.

1 Introduction
1.1 Developments of high-speed railway in China
1.2 Aim and relevance of the book
1.3 Literature review
1.4 Contributions and outline of the book
2 Appropriate timetable mode for China's high-speed railway
2.1 Non-cyclic timetable
2.2 Cyclic timetable
2.3 "Cyclic + non-cyclic" timetable
3 Definition of adding train paths problem
3.1 Model assumptions
3.2 Objectives in ATP problem
3.3 Modeling requirements
4 Mathematical model for adding train paths problem
4.1 A general ATP model
4.2 Extensions of the ATP problem model
4.3 Objectives functions
4.4 Experimental studies
5 Integration of train-set circulation and adding train paths problem
5.1 The use of train-set in china's HSR
5.2 Terminology and literature
5.3 Special features of train-set planning in the ATP problem
5.4 Formulation for train-set routing in adding paths problem
5.5 Experimental studies
6 Conclusions and future work
6.1 Main results
6.2 Answering the research questions
6.3 Limitations of the book and recommendations for further research
Appendix A Different mode of maintenance time
Appendix B The timetable in Guangzhou-Shenzhen HSR line
Appendix C Graphical user interfaces of the ATP tool
Bibliography