Unit 1　Introduction to American Railroads and Key HSR Technologies
in China 1
Unit 2　Electric Traction 13
Unit 3　Railway Vehicles 26
Unit 4　Freight Traffic 35
Unit 5　Maglev 45
Unit 6　High Speed Railway 54
Unit 7　Rolling Stock 65
Unit 8　Grade Crossing 76
Unit 9　Railroad Track 90
Unit 10　ATC & ATP 100
Unit 11　Basic Automatic Block Signal 111
Unit 12　Centralized Traffic Control 120
Unit 13　Evolution and Impact of Transport 129
Unit 14　Intelligent Transportation System 139
Appendix A　Glossary 152
References 161