CASE STUDY Hangzhou Metro Line 4 Deploys Reliable and Secure Solution The Hangzhou Metro Line 4 is Hangzhou city’s third metro line to enter trial operation. Built entirely underground, Phase 1 of the project measures 20.8 km. The initial section of the line includes 10 stations at 9.6 km in length, and began operation in 2015. The southern section is 11.2 km long, has 8 stations, and is expected to start serving the area in November 2017. Challenge Hangzhou Line 4 is an integral part of the city’s public road system. It has to provide a rapid, highly efficient commute for passengers, while ensuring the safety of all commuters and staff on the trains. Therefore, the access control solution in place had to be highly reliable and secure. Previously, the access control solutions depl

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