The demonstration project of the Yizhuang Line is 23.23 kilometers in length. There are 14 stations along the whole line, including 6 underground stations and 8 elevated stations. There is one parking lot and one depot along the whole line. Initially, 23 sets of vehicles are configured.

The Yanfang Line of Beijing Subway is 14.4 kilometers long and is laid in an all-elevated manner. There are 9 stations in total. The trains are 4-carriage Type B trains (with a total of 16 trains).

This line: December 28, 2018 (Northeast Loop); December 30, 2019 (Southwest Loop); January 20, 2021 (Remaining section for forming the loop). Interconnection: On September 18, 2020, cross-line operation between Line 4 and the Loop Line and co-line operation on the ground of Lines 5 and 10 for interconnection were launched; on December 28, 2021, cross-line operation among Lines 4, the Loop Line and 5 for interconnection was launched.

The total length is 39.9 kilometers, including 21.98 kilometers of underground lines and U-shaped troughs, and 17.92 kilometers of elevated sections and subgrade sections. There are 3 stations in total, all of which are turnout stations and transfer stations. 4-car and 8-car formation D-type trains are adopted.

The total line length is approximately 27.6 km. Among them, the underground section is about 16.9 km, and the above-ground section (elevated) is about 10.7 km. There are a total of 10 centralized stations and 23 stations along the whole line. Among these stations, 16 are underground stations and 7 are above-ground (elevated) stations. The line is equipped with six-carriage trains, with a total of 61 trains allocated.

Carry out the expansion test and engineering application of the moving block system for heavy-haul railways on the 350-kilometer line between Sanji Station and Huanghua Port Station of the Shuohuang Heavy-Haul Railway. Through the transformation of the moving block system for 20 stations, 20 locomotives, the dispatching center, etc., heavy-haul trains can run with safe tracking according to the moving block system, and the continuous departure capacity of 10,000-ton trains at technical operation stations is increased by 24%.

The total length of the line is 13.021 km. The whole line is an elevated line. A total of 12 stations are set up, with an average station spacing of 1.151 km. There are 13 four-carriage Type B trains. Two ZC first-level centralized stations and four CI second-level centralized stations are set up along the whole line. There is one Hedong Depot, including one test track, and one control center.

It has a total length of 16 kilometers and a total of 16 stations are set up, including 12 underground stations, 3 elevated stations and 1 ground station. The train uses an 8-car formation. It is an important transportation artery in Hong Kong.

The project will break through two key technologies, namely virtual marshalling and intelligent train operation dispatching, and build two core platforms, namely the integrated intelligent train platform and the industrial Internet basic platform. Relying on the projects of Beijing Subway Line 11 and Line 19, it will complete the scenario demonstration, application and verification of key technologies and system prototypes. The project has been approved as a national development special project of the "Demonstration Project of the New Generation Intelligent Train Operation System and Platform for Smart Urban Rail" by the National Development and Reform Commission, and also as the "Demonstration Project of the New Generation Networked Intelligent Dispatching and Intelligent Train Operation and Control System" by the China Urban Rail Transit Association.

ITE collects information data of the line ahead of the train's progress through sensor devices such as radars and cameras. By using real-time positioning, map construction technology, sensor fusion technology, etc., it realizes the functions of precise train positioning and obstacle detection, reaches the SIL4 safety level, and further enhances the safety protection of train operation.

The total length of Phase I project is 28.737 km. There are 24 stations in total, all of which are underground stations. Among them, there is an interchange with Line 2 at Dananmen Station, and the conditions for interchanging with six stations are reserved. The average distance between stations is 1.249 km, the minimum distance between stations is 0.613 km, and the maximum distance between stations is 3.429 km.

The total length of the road is 3.5 km, among which 0.865 km is the tunnel section. The storage line is extended by approximately 0.517 km. The maximum line speed is 80 km/h. The total length of the AEL and TCL connecting lines is 4.365 km, and the maximum line speed is 135 km/h. The DRL trains are parked and maintained at the Siu Ho Wan Depot (SHD). Part of the AEL line shares the same track with the TCL main line, serving as the interconnection track for the DRL trains to enter and exit the SHD.

There are many challenges in the traditional manual patrol of the nature reserve: The reserve covers an area of 44.85 square kilometers, which is large, resulting in high labor costs. In some areas, the terrain is complex, and it is difficult for vehicles to access, which limits the inspection efficiency and frequency. The geographical environment is complex, making it difficult to detect illegal activities and enforce the law.

Along the Jiande section of the Xin'an River, 8 unmanned aerial vehicle (UAV) hangars, 1 vertical takeoff and landing fixed-wing UAV, 1 unmanned cleaning boat and its dock have been deployed, covering a river basin length of 41.4 kilometers and a basin area of 1,291.44 square kilometers. Each hangar can conduct more than 5 daily inspections on average. It can report and handle abnormal situations such as floating garbage on the water surface, cyanobacteria, sewage discharge from outfalls, and people in dangerous waters within the river basin, and also provide emergency response services for the water area.