1. Guideline on the Design of Traffic Operation Of Urban Roads GB/T 36670-2018. The Ministry of Public Security of the People’s Republic of China. https://std.samr.gov.cn/gb/search/gbDetailed?id=77D9F23EFB9D58E2E05397BE0A0A2879
2. https://news.163.com/14/0117/07/9IPB2U0L00014MTN.html
3. Urban Rail Transit Statistics and Analysis Report in 2019. China Association of Metros. https://www.camet.org.cn/tjxx/5133
4. Directive 2002/24/EC of the European Parliament and of the Council of 18 March 2002 Relating to the Type-Approval of Two or Three-Wheel Motor Vehicles and Repealing Council Directive 92/61/EEC, 2002L0024-EN-17.05.2005
5. Technical Specifications for Safety of Power-Driven Vehicles, GB7258-2017. National Standardization Technical Committees