1. The choice to text and drive in younger drivers: Behavior may shape attitude;Atchley;Accident Analysis Prevention,2011
2. Traffic Management Bureau of the Public Security Ministry reminds enterprises to regulate management and urges couriers civilized riding;Auto and Safety;Auto and Safety,2017
3. AI media report|2018–2019 China online takeout Industry Research Report. (n.d.). 2019. Retrieved December 15, 2020, from https://www.iimedia.cn/c400/64223.html/.
4. AI media report|Monitoring report on China's online takeout market in the first half of 2018. 2018 Retrieved December 15, 2020, from https://www.iimedia.cn/c400/62229.html.
5. Research on traffic characteristics and safety effect of electric bicycles in urban streets;Bai,2017