济南地铁4、8号线及6号线东段空载试运行正紧锣密鼓加速推进中，一列列电客车陆续集结到位，一座 座崭新车站也逐渐揭开"面纱"。新线运营筹备一线又传来哪些消息？让我们一起走进工作现场，看看这 几条新线最近在忙什么。 列车集结到位，调试精益求精 4号线全线54列电客车、6号线东段22列电客车已全部抵达车辆段，整齐列队、蓄势待发；8号线11列电 客车也陆续到段，正按计划开展车辆验收与动态调试。 完成邢村站、梁王站、礼耕路站（均为工程名）等车站标识张贴工作，其他车站也在同步张贴完善各类 标识，提升乘客出行的便捷性与体验感。 联调复测全面铺开，优化设备系统 当前，设备综合联调复测工作已覆盖4、8号线35座车站及6号线东段17座车站。正进行信号、通信、供 电等关键系统多轮协同测试与性能复测，全面排查系统接口匹配性与运行稳定性。 所有列车均处于良好调试状态，各项性能指标稳步优化，为后续安全、平稳运营打下坚实基础。 通过模拟真实运营场景，不断优化系统参数与联动逻辑，确保开通后各设备系统高效、稳定运行，为市 民乘客提供安全可靠舒适的乘车环境。 实战演练常态化，夯实安全基础 试运行期间，已组织开展各场景应急演练200余项，包含综合 ...

Core Viewpoint - The integration of modern subway systems with the preservation of ancient springs in Jinan represents a significant advancement in urban governance, emphasizing legal frameworks and citizen services to enhance transportation while safeguarding natural resources [1][2]. Group 1: Subway Development and Water Conservation - The Jinan Metro Line 4, spanning 40.3 kilometers, is set to open by the end of 2025, enhancing east-west transportation in the city while addressing the challenges posed by the protection of the city's famous springs [1][2]. - The 2023 "Jinan Urban Rail Transit Regulations" establishes "spring protection first" as a core principle, mandating environmental impact assessments and dynamic monitoring throughout the planning and construction phases [2]. - Advanced technologies, such as a "digital twin + IoT" system, have been developed to monitor underground water systems in real-time, ensuring the protection of the springs during construction [2]. Group 2: Legislative Innovations for Urban Challenges - The "One Policy for One Issue" approach, derived from the "Jinan Parking Regulations," has led to the creation of over 700 public parking facilities, adding 233,000 parking spaces to alleviate parking difficulties [3]. - The "Jinan Taxi Management Regulations" unify the management of traditional taxis and ride-hailing services, resulting in a significant increase in compliance rates from 70.3% to 93.1% in 2024, while complaints about taxis dropped by 47.94% [4]. - The "Jinan Electric Bicycle Fire Safety Management Regulations" focus on critical areas such as parking and charging, marking a proactive legislative approach to enhance public safety [4]. Group 3: Enhancing Citizen Experience - The Jinan Parking Regulations provide 30 minutes of free parking at government-designated facilities, addressing practical issues faced by citizens and improving overall satisfaction [5][6]. - A humanized enforcement model allows for a 10-minute warning for parking violations, promoting compliance while maintaining the seriousness of the law [6]. - Innovative public transport solutions, such as small buses for narrow streets and customized routes, have been introduced to tackle the "last mile" problem, contributing to Jinan's recognition as a "National Public Transport City" [6]. Group 4: Systematic Legal Framework - By the end of 2025, Jinan will have 81 effective local regulations, with 7 specifically addressing transportation, creating a robust legal framework for modern urban governance [8]. - The legislative approach emphasizes coordination and foresight, ensuring that regulations are interconnected and support the optimization of transportation resources [8]. - The implementation of these regulations has led to a 3.6% decrease in traffic congestion and a 5% increase in traffic speed, reflecting the effectiveness of the legal framework in enhancing urban mobility [9].

Core Points - The article discusses the ongoing preparations for the operation of new metro lines in Jinan, specifically Line 4, Line 6 East Section, and Line 8, highlighting the importance of the empty test run phase [1][5] - The empty test run is a critical step that involves verifying the reliability, safety, and accuracy of the systems before the lines can be opened to the public [1][3] Group 1: Empty Test Run Process - The empty test run involves two main steps: functionality verification and stability testing, which includes testing 45 operational scenarios for Line 4 and Line 8, and 79 scenarios for Line 6 East Section [3] - A total of 134 emergency simulation drills and various operational tests are conducted to ensure system stability and reliability [3] - The second step, known as "running the schedule," requires trains to operate according to a timetable without passengers, ensuring that all systems function correctly [5] Group 2: Safety Assessment and Approval - Before a new line can be opened, it must pass a safety assessment, which is considered the most critical "final exam" for the line [7] - The assessment is conducted by a panel of experts from the domestic rail transit industry, involving both theoretical evaluations and on-site inspections [9] - A minimum of three months of empty test runs is required to ensure a safe and comfortable experience for passengers once the line is operational [9]

Core Insights - The Jinan Metro Line 4 has commenced a three-month trial operation, focusing on the verification of its fully automated operation system, which is crucial for the city's public transport network [1][2] Summary by Sections Line Overview - Jinan Metro Line 4 is a U-shaped backbone line with a total length of 40.3 kilometers and 33 stations, resulting in an average station spacing of approximately 1.26 kilometers [2] - The station spacing is a result of a balance between urban planning, passenger demand, and engineering conditions, adhering to national design standards [2][3] Urban Planning and Passenger Flow - The line's design aligns with Jinan's elongated urban structure, effectively serving as a major passenger corridor along Jinan's central axis, Jingshi Road [3] - Predictions indicate that nearly 60% of passengers will travel less than 10 kilometers, catering to commuting, shopping, and medical needs, thus enhancing short-distance travel options [3] Connectivity and Network Integration - Line 4 connects with six transfer stations from previous metro phases and is designed to integrate with future lines and the ongoing Yunba system, enhancing the overall transport network [4] - This integration is expected to significantly improve the accessibility and reliability of the transport network, facilitating efficient movement of people and resources across the city [4] Public Transport Synergy - As of August, 218 bus routes have been integrated with the metro, representing 53.5% of the bus network, with a high rate of bus stops located within 50 meters of metro entrances [5] - The completion of Line 4 and Line 8 is projected to increase the number of connecting bus routes to over 240, promoting a more cohesive public transport system [6] Aesthetic and Functional Design - Line 4 is noted for its unique station designs, including the only semi-underground station at Quancheng Park, which integrates artistic elements with functional transport needs [6][7] - The design process considers urban aesthetics, ensuring that stations harmonize with surrounding landscapes and enhance the overall urban experience for commuters [7]

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].

Core Insights - The Jinan Metro Line 4 is a significant transportation project that is expected to enhance urban mobility and meet the commuting needs of citizens [1][6] - The line spans 40.3 kilometers with 33 stations, designed to facilitate short-distance travel for approximately 60% of passengers [1][6] Group 1: Project Overview - Line 4 is designed according to national standards and aligns with major cities like Beijing and Shanghai in terms of station spacing [1] - The line is projected to cater to various travel needs, including commuting, shopping, and medical visits, with nearly 60% of passengers traveling less than 10 kilometers [1][6] Group 2: Technological Features - The line employs a fully automated operation system that enhances operational efficiency by optimizing speed control and reducing human error [4] - It features A-type trains with a length of approximately 140 meters and a width of 3 meters, accommodating a maximum capacity of 2,590 passengers [4] Group 3: Passenger Experience - The design of the trains allows for a more spacious environment, improving the overall commuting experience, especially during peak hours [4] - The project emphasizes a commitment to creating a more intelligent, comfortable, and user-friendly urban transportation experience for citizens [6]

Core Viewpoint - The construction of Jinan Metro Line 4 prioritizes the protection of the local spring ecosystem while addressing urban congestion, making it the world's first metro line built near a sensitive spring area [2][6][24]. Group 1: Metro Line Overview - Jinan Metro Line 4 is the first metro line in the world to be constructed near a sensitive spring area and runs beneath the busiest road in the city, aiming to alleviate traffic congestion [2][12]. - The line spans 40.3 kilometers with 33 stations, connecting key urban areas and enhancing public transportation options [21][26]. Group 2: Environmental Considerations - The design philosophy emphasizes "avoiding and elevating" to protect the spring water, with the metro line planned to bypass sensitive areas and minimize impact on groundwater flow [6][14]. - The station at Quancheng Park is designed to be partially above ground to protect the underground water, making it the shallowest station on the line [6][11]. Group 3: Innovative Technologies - Advanced water recharge technology has been implemented, allowing for efficient management of groundwater during construction, with a focus on maintaining water quality [15][20]. - The construction utilized innovative materials that prevent water leakage and allow for the free flow of groundwater, ensuring the integrity of the spring ecosystem [23][24]. Group 4: Monitoring and Future Plans - Continuous monitoring of groundwater levels is established with over 200 monitoring points along the metro line to ensure the health of the spring ecosystem [24]. - The line is set to open by the end of the year, fulfilling the community's desire for a harmonious coexistence of urban transit and natural springs [26].

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]

Core Viewpoint - The Jinan Metro Line 4 has officially started its empty test run, with plans to be completed and operational by the end of the year. The key to ensuring operational safety lies in the joint debugging and testing process, carried out by a dedicated team of engineers known as "metro doctors" [1]. Group 1: Joint Debugging and Testing Process - The debugging work is divided into two main sections: station debugging and train operation debugging, covering numerous systems such as ventilation, air conditioning, and signaling, all crucial for train safety and punctuality [4]. - The debugging team, led by Song Zengqing, has been involved since August of last year, overseeing the entire process from the first station's debugging to the empty test run [2]. - A thorough inspection process, referred to as "carpet-style" checks, was conducted to identify potential safety hazards, emphasizing the importance of attention to detail [4][6]. Group 2: Testing Scenarios and Requirements - The debugging process involves 45 major testing scenarios and over 1,200 testing points, with signal debugging accounting for 70%-80% of the total [7]. - Each command in the fully automated operation mode must be executed with precision, ensuring that trains stop accurately at stations and emergency protocols are triggered correctly [7]. - The most complex test involves "multi-train tracking," where up to seven trains are tested simultaneously in the tunnel, requiring precise calculations of speed and position to ensure safety [9]. Group 3: Commitment to Safety and Quality - The engineers liken their work to that of "neurology" in surgery, emphasizing the meticulous nature of debugging, which cannot be rushed or compromised [10]. - The successful execution of the joint debugging and testing process lays a solid foundation for the empty test run, ensuring that every aspect of train operation is reliable and safe for passengers [10].

Core Viewpoint - The Jinan High-tech East District Yunba project has entered the empty load trial operation phase, with significant progress in construction and the removal of construction barriers, enhancing urban traffic flow for citizens [1][3]. Group 1: Project Overview - The Yunba project is a key public transportation initiative in Jinan, emphasizing the principles of "convenience for the public, benefits for the people, and minimal disruption" during construction [3]. - The project has successfully removed over 465,000 square meters of construction barriers, allowing urban roads to gradually "return" and improving travel for citizens [1]. Group 2: Construction Strategies - To minimize disruption, the project team has implemented various strategies, including optimizing designs to relocate construction areas and compressing barriers to reduce their impact on traffic [3][8]. - A significant adjustment was made by moving the construction line south to utilize the roadside green belt, avoiding the closure of nearly 6 kilometers of motor vehicle lanes and all non-motor vehicle lanes [7]. Group 3: Efficiency Improvements - The project team has compressed the distance between barrier isolation piers and foundation pits to just 20 centimeters in the critical area of Tangye Road to maximize space for public use, resulting in a total barrier reduction of 23,000 square meters [10]. - In Spring Garden Road, the construction barriers reduced a four-lane road to two lanes, but through optimized pile foundation design and prefabrication of rebar cages, the team completed the work in just 40 days, significantly improving construction efficiency [11]. Group 4: Broader Impact - The Yunba line not only represents the speed of urban development but also reflects the commitment to serving the public, with every space saved and time reclaimed contributing to the city's warmth [19]. - Other projects, such as the Jinan Metro Line 4 and Line 6, are also progressing with barrier removal, promising further improvements in urban traffic flow and citizen travel experience [21].