Foreword Introduction 1 Scope 2 Normative references 3 Terms and abbreviations 3.1 Terms 3.2 Abbreviations 4 System architecture 4.1 Architecture composition 4.2 CBTC system physical and functional interfaces 5 Functional comparison 6 Allocation of ATP functions 6.1 The main functions of ATP 6.2 Train location determination 6.3 Movement protection restrictions and target point determination 6.4 ATP speed profile determination 6.5 Authorized speed determination 6.6 Actual train speed and direction determination 6.7 Authorized train speed and authorized travel direction supervision 6.8 Train door and platform screen door control 6.9 Train turnback 6.10 Onboard ATP man-machine interface 6.11 ATP self-diagnosis, failure alarm and data recording 7 ATO function allocation 7.1 Function description 7.2 Determination of ATO profile 7.3 Train speed regulation 7.4 Door control 7.5 Onboard ATO user interface 7.6 Self-diagnosis, failure alarm and data recording 8 ATS function allocation 8.1 Function description 8.2 Train identification 8.3 Train tracking 8.4 Train route handling 8.5 Train regulation 8.6 Train operation control 8.7 Temporary speed 8.8 Schedule preparation 8.9 Simulation training 8.10 User interface 9 CI function allocation 9.1 Function description 9.2 Route handling 9.3 Locking/releasing route/section 9.4 Emergency stop button 9.5 Failure monitoring and operation records