**Introduction**
The event "Night Riding in Zhengzhou" has been covered extensively on Wikipedia, but as the platform does not allow original research, we will provide additional details to flesh out the story.
**Organization and Planning**
Researcher Wang Zhi'an suggests that the entire activity was planned by the tourism group of Zhengzhou, citing the following reasons:
1. Low number of riders before the event: Before November 3rd, there were only 2000 university students using the bike-sharing service, which is a relatively small number.
2. Sudden media coverage: On November 3rd, multiple media outlets suddenly started reporting on the event, including the university's free entry promotion and the help provided by the police and volunteers. This suggests a coordinated effort.
**Bike-Sharing Companies' Response**
The bike-sharing company responded that they would assist the government in managing the city's maintenance. However, the situation became more complex than anticipated, with an unexpected surge in bike demand.
**Theories on the Cause**
Some speculate that the surge in bike demand was caused by a group of entrepreneurs who started transporting bikes from other areas to meet the demand, using small trucks to ferry the bikes to the starting point and then selling them to students. This plan seemingly went awry, as the bikes arrived in large quantities, overwhelming the original bike-sharing service plans.
**Conclusion**
The exact circumstances surrounding the bike-sharing companies' response and the entrepreneurs' plans are unclear, but it is evident that the sudden and unanticipated surge in bike demand disrupted the original plans. The bike-sharing companies should have been able to monitor the bike supply and adjust their plans accordingly, making it unlikely that they were completely caught off guard. The disruption was likely caused by the unforeseen arrival of large numbers of bikes from other areas, which threw off the original supply chain plans.