2. Attendants of high-speed trains and bullet trains: guide passengers to their seats, answer passengers' inquiries, and maintain the sanitation inside the high-speed trains (bullet trains) during operation.
3. Station passengers: provide guidance services for passengers in the waiting room and platform.
4. Railway customer service representatives: Customer service centers of local railway bureaus accept all kinds of consultations, complaints and suggestions related to railway passenger and freight services through manual online and self-service voice.
5. Crew safety officer (including subway and light rail): assist the police in charge of train safety.