从解决一个问题到破解一类难题，“12345”热线推动武汉超大城市现代化治理

Group 1 - The article highlights the effectiveness of Wuhan's citizen service hotline "12345" in addressing various urban governance issues, showcasing its role in modernizing city management [1][8] - The hotline has facilitated the opening of a new shuttle service to improve transportation access for residents, addressing the "last mile" travel problem [1] - A specific case involving fake insurance policies was uncovered through the hotline, leading to a broader investigation and the recovery of 5.46 million yuan in insurance fees for affected drivers [2][3] Group 2 - The article discusses the use of big data to identify and resolve traffic congestion issues in the city, with a focus on a specific road that had previously been a major bottleneck [4][5] - The hotline's integration of various data sources allowed for the creation of a "congestion heat map," which helped optimize traffic flow and improve overall transportation efficiency [5][6] - The article emphasizes the importance of collaborative efforts among different departments to address citizen complaints more effectively, reducing response times and improving service delivery [7] Group 3 - The hotline has expanded its capabilities to handle complex issues in "in-between" areas, ensuring that residents receive timely assistance without bureaucratic delays [7] - The article illustrates how the hotline has transformed from merely addressing individual complaints to implementing systemic changes across multiple sectors, such as transportation and education [3][7] - The overall impact of the hotline is framed as a significant step towards enhancing urban governance and citizen engagement in Wuhan [8]