壹探轨道|不仅是通勤线，更是生活服务线！解码济南地铁4号线

Core Insights - The Jinan Metro Line 4 is a significant transportation artery that connects the eastern and western parts of Jinan, covering a total length of 40.3 kilometers with 33 underground stations, making it the longest and most extensive metro line in the city [2][11] Construction Highlights - The construction of Line 4 has set multiple records in Jinan's metro history, showcasing unique challenges and achievements [3] - The shallowest station, Quancheng Park Station, features a half-underground design and is the first in the country to use a double-curved thin-shell concrete structure, enhancing the aesthetic integration with the park [5] - The most challenging station, Olympic Center Station, utilized the first "full underground excavation" technique in Jinan due to its complex construction conditions [7] - The deepest station, Bayi Overpass Station, has a foundation pit depth of 32 meters, equivalent to a 10-story building, allowing for future transfer interfaces and minimizing disruption to existing underground utilities [9] Urban Integration - The station layout of Line 4 aligns with Jinan's urban structure, with over 60% of key enterprises, office buildings, cultural venues, hospitals, and schools located along the main thoroughfare, Jing Shi Road [8] - The average distance between stations is approximately 1.26 kilometers, consistent with major cities like Beijing and Shanghai, ensuring efficient coverage of both central and peripheral areas [11] Service and Demand - Data models predict that nearly 60% of future passengers will travel distances within 10 kilometers, indicating that Line 4 will cater to various commuting needs, including work, healthcare, shopping, and education [14] - The line is designed to connect significant life scenarios for residents, making "direct subway access" a reality for various destinations across the city [14] Operational Status - Line 4 is currently in the trial operation phase and is expected to open by the end of the year, facilitating transfers with other metro lines and enhancing Jinan's overall transit network [15]