Core Points - The transformation of Jing Shi Road marks a significant development in Jinan's urban infrastructure, with the simultaneous construction of Metro Lines 4 and 8, enhancing public transportation accessibility [1][2] - Jing Shi Road serves as a vital artery for Jinan's urban development strategy, facilitating the connection between various key areas and supporting the city's growth [1][2] Group 1 - The total length of Metro Line 4 is 40.3 kilometers, extending from the west to Xingtai Interchange and Pengjiazhuang, while Metro Line 8 runs along Jing Shi East Road, connecting key urban areas [1] - The completion of these metro lines by the end of the year will usher in a new era of convenient public transport in Jinan, marking the city's transition into a more integrated metro network [1] - Jing Shi Road is described as a "golden corridor" that has become the backbone of Jinan's urban development, aligning with the city's strategic planning approach [1][2] Group 2 - Jing Shi Road is not only a transportation route but also a clear industrial corridor, linking various economic zones and enhancing the region's innovation potential [2] - The road's development has been complemented by infrastructure projects such as the expansion of National Road 309, which has increased its capacity and connectivity [2] - The evolution of Jing Shi Road reflects the broader trajectory of Jinan's urban growth, showcasing advancements from basic road infrastructure to smart management systems [2]

Core Points - The Jinan Metro Line 4 has commenced trial operation, which will enhance the overall metro network in Jinan [1] - The line, constructed by Jinan Metro Group and China Railway 14th Bureau, spans 40.3 kilometers and runs through densely populated areas along Jinan's main thoroughfare, alleviating traffic pressure [2] - The construction faced challenges due to spring water protection and complex karst geological conditions, with approximately 300 caves in a 1-kilometer section [2] - The construction team prioritized environmental protection by developing new eco-friendly materials and creating a diversion channel system to minimize impact on the underground environment [2] - Jinan Metro Line 8 also began trial operation on the same day, which will connect with Line 4, contributing to the alleviation of east-west traffic congestion and promoting economic development in the region [2]

Group 1 - The core point of the article is the commencement of the empty test operation for Jinan Metro Line 4 and Line 8, marking a critical phase in the preparation for their operational launch by the end of the year, which will significantly enhance the transportation structure in Jinan [1] Group 2 - Line 4 spans 40.3 kilometers with 33 underground stations, covering 80% of the passenger flow in densely populated areas along Jinan's Jing10 Road, and will connect with multiple existing metro lines and the high-tech eastern district [3] - Line 8 covers 25.3 kilometers with 3 underground and 11 above-ground stations, linking key areas such as the China (Shandong) Pilot Free Trade Zone and various educational and technological institutions, facilitating travel for residents and promoting coordinated development [3] Group 3 - The empty test operation is a crucial transition from construction to operational phase, involving a three-month period of simulating real operational conditions and testing core systems such as vehicles, tracks, signals, and power supply [4] Group 4 - The construction of Lines 4 and 8 emphasizes the integration of technology and green low-carbon practices, with Line 4 overcoming complex geological conditions and Line 8 aiming to be a national model for green urban rail transit [5] - The underground stations on Line 8 utilize advanced green construction techniques, achieving a reduction of approximately 3,400 tons of CO2 emissions per station, while the Shandong University station is designed for solar energy generation, expected to produce 180,000 kilowatt-hours annually [5] - During the empty test operation, Jinan Metro Group will conduct system debugging, operational drills, and safety assessments to ensure high standards for the lines' opening, contributing to the modernization of the province [5]

Group 1 - The Jinan Metro Line 4 and Line 8 have successfully passed project engineering acceptance, indicating readiness for trial operation [1] - Line 4 is scheduled to start a three-month trial operation on August 31, with an expected opening by the end of 2025 [1] - Line 8's first phase has begun dynamic debugging in June, with a total length of 25.5 kilometers and 14 stations, aiming for operation by the end of this year [1][2] Group 2 - The Jinan Metro Line 6 East Section, a key project in the city's transit network, has made significant progress, with dynamic debugging entering the final phase [2] - The East Section of Line 6 spans approximately 19.5 kilometers with 17 underground stations, focusing on seamless integration of various systems [2] - The High-tech East District Yunba project has commenced a three-month trial operation, expected to open in early December, featuring a unique design and energy-efficient technology [2][3] Group 3 - The Yunba project will connect to the Jinan Metro network through five transfer stations, enhancing commuter convenience and addressing public transport congestion [3] - The Jinan Metro Group is committed to standardizing construction and expediting station renovations and safety assessments to ensure timely operation of all lines [3]