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The first Urban EMUs from CRRC Qingdao Sifang Co., Ltd have been put into operation in Wenzhou, China

The first batch of a series of new urban railway demonstration projects in China was officially put into operation in January 2019 with the S1 transit line in Wenzhou.

The Wenzhou Rail Transit Line S1 is the first rail transit line in Wenzhou, the total length is about 53.5 km and the operating speed is 120 km/h. It is a fast channel connecting the two centers of the core area of Wenzhou Metropolis. The first phase of the project (the "Western Section") was opened on the same day, which includes 12 stations with a total length of 34.38 km.

First Urban EMUS from CRRC Qingdao Sifang Co., Ltd in operation in Wenzhou, China

The Urban EMU is a new type of vehicle that was specially developed for urban railway by CRRC Qingdao Sifang Co., Ltd. and is based on the EMU technology platform. At the same time, it integrates the metro vehicle technology – profiting from the advantages of both. It is referred to as the “hybrid” of the EMU and the Subway. It features fast speed, fast start and fast stop, boasting a large passenger capacity and comfortable ride.

The Urban EMU has a maximum design speed of 140 km/h and operates at 120 km/h on the Wenzhou Line S1. At the same time, its acceleration and deceleration capabilities are comparable to those of the Subway. Including the stopping time, the actual travel speed of the Subway is generally around 30 – 35 km/h; the actual travel speed of the Urban EMU is more than 55 km/h. It takes only about 40 minutes to complete the journey of 34.48 km.

The cabin is more spacious than the Subway. Its body width is 3.3 meters – close to the standard of high-speed EMUs – and 0.3 meters wider than the widest Type A Subway vehicles. The train includes 4 coaches, carrying up to 1328 passengers. Each car has four pairs of large-opening two-way sliding doors on each side. Even in the case of overcrowding, passengers can rapidly embark and disembark within 29 seconds; therefore reducing the stop time. In order to improve the ride comfort, the train also adopts a high standard airtight design: When the train travels through the tunnel or passes another car, the pressure fluctuation inside the car is minimal, reducing the pressure change in passengers' ears. In addition to this, the train is equipped with a frontal collision energy absorbing device. According to the passive safety standard of the high-speed EMU, it meets the collision energy absorption requirements of the 36 km/h speed class and improves the passive safety protection capability of the vehicle.

As a new type of transportation system between the national railway and urban rail transit, the Urban railway is a transportation mode that provides fast, large-capacity and public transportation services between the central city and surrounding urban groups. The travel distance is generally around 50 – 100 km. The design speed of the Urban railway is generally between 120 – 160 km/h, which is faster than that of the Subway. Station spacing is also farther than that of the Subway, so the travel speed is faster.

With the rise of metropolises and conurbations in China, the Urban railway has developed rapidly. As the first batch of new Urban railway demonstration projects in China, the opening and operation of the Wenzhou rail transit Line S1 has demonstration significance for the national railways.

Selectron Systems AG is supplying the TCMS equipment for the Urban EMU. The central Selectron vehicle control system is in permanent communication – via MVB and Ethernet – with the decentralized I/O islands (RIOMs) distributed in the vehicle. It integrates all vehicle subsystems into a control system that is optimally coordinated. This control technology is based on the modular Selectron MAS 83x/73x control system, including the Ethernet Consist Switches


Subject to technical changes and amendments to technical specifications at any time.

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