Core Viewpoint - The Jinan Metro Line 4 is designed to balance service coverage and operational efficiency, catering to the city's elongated urban structure and high passenger demand along the Jing Shi Road corridor [2][4]. Summary by Sections Line Overview - The Jinan Metro Line 4 has commenced a three-month trial run, successfully completing the first phase of automated system functionality verification [2]. - The line spans 40.3 kilometers with 33 stations, featuring an average station spacing of approximately 1.26 kilometers [3]. Station Spacing and Design - The station spacing is a result of urban planning, passenger demand, and engineering conditions, adhering to national design standards [3]. - The average station distance is consistent with other major cities, ensuring a balance between service density in urban areas and operational efficiency in peripheral regions [4]. Passenger Demand and Usage - Data models predict that nearly 60% of passengers will travel less than 10 kilometers, indicating a focus on short-distance commuting, shopping, and medical visits [4]. - The line connects key locations such as parks and hospitals, addressing the "last mile" issue for residents [4]. Network Integration - Line 4 will connect with six existing transfer stations and future lines, enhancing the overall transit network's accessibility and reliability [5]. - The integration with other transport systems, including the bus network, is expected to improve urban mobility significantly [6][7]. Urban Development and Aesthetics - The line is designed to enhance the urban landscape, with stations that incorporate artistic elements and align with surrounding scenery [8]. - The construction of unique stations, such as the semi-underground station at Quancheng Park, exemplifies the blend of functionality and aesthetics in urban transit design [8].