CBTC Fallback System on Beijing Metro Lines | China
Beijing metro, one of the busiest lines in the world, was Frauscher’s very first assignment when entering the Chinese market. Due to its utilised capacity, it requires a great level of stability, reliability and performance of the entire signalling system. The Communication Based Train Control System (CBTC) applied here relies on a backup system consisting of fixed automatic train detection systems. Axle counting systems from Frauscher are perfectly suited for the accurate operation of such stand-by systems.
Frauscher axle counters have been separately integrated into the interlocking systems of the three metro lines in Beijing– Yizhuang Line, Changping Line and Beijing Line 8 phase I, covering in total 100.8 km with an average daily passenger flow of 63,700. Furthermore, the axle counters had to be SIL4 certified. The ACS2000 with IMC and RSR180 was the preferred system by the three signalling operators and a total of 763 wheel sensors across 645 track sections were installed. A wide range of rail claws satisfied the multiple rail track requirements on the network, such as slab and ballasted track. Easy and fast mounting of rail claws allowed a timely and cost-efficient installation.
After over 10 years of operation, the ACS2000 has proven its outstanding stability and reliability. Furthermore, the ACS2000 has not only fulfilled all the operating requirements but has also always guaranteed a smooth operation of the metro lines.