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BUES 2000

Our railway crossing safety system BUES 2000 is approved in Austria for the following applications:

Application FÜ – Remote monitoring

In this type of system, the EKSA (railway crossing safety system) is monitored remotely by an interlocking system, allowing messages to be safely transferred from the signal box. The system can be activated automatically through track sensors or by driving routes through operations in the signal box. The advantage of this design is the short system shut-down times for road traffic and the constant monitoring via interlocking and operating personnel, which is mainly used on heavier routes. Since it is also possible in this system variation for the train to travel to the EKSA without a covering signal, the highest safety level (CENELEC SIL4) is required by the control system and the track sensors. All these demands are met by BUES 2000 and are type-approved by the Federal Ministry of Transport, Innovation and Technology (BMVIT).

Application ÜS – monitoring with supervision signal for the train driver

Surveillance signal monitoring (or also monitoring by the train operator) systems are so-called island systems which operate autonomously and whose system status is indicated to the driver in the monitoring signal in good time (in appropriate braking distance before the EK). These systems are usually activated, switched on by radio or by handset. Due to the required timely intervention systems and positioning of ÜS signals at braking distance, blocking times for road traffic are usually longer, causing this type of system to be used rather on weaker routes, sidings and trams. The advantage of this design is the cost-effective production option in comparison to FÜ systems (e.g. elimination of the interlocking interface, lower wiring costs).

Application VK – availability control

Availability-control systems are a combination of FÜ and ÜS systems without interlocking connections, which are usually automatically activated. A similar safety standard is used as FÜ systems (similar since the track sensors are somewhat freely controlled to increase the possible applications, while the necessary safety is ensured). The driver is indicated "EK-secured" through a permanently flashing ÜS signal in the event of a fault-free operation. Due to the high safety level and the constant monitoring of the track sensors, a safe system connection is guaranteed. As a result, it is possible to situate ÜS signals in necessary braking distance, however not installing the track sensor system in front of the signal in the same way as ÜS systems, rather behind it. This means the system is switched on in a timely manner, taking into account the crossing time for road traffic, and thus no unnecessarily high blocking times arise. In addition, the track sensors cabling can be significantly conserved.  The main focus of this type of system is on medium-haul routes (secondary railways).

All applications that are required in Austria can therefore be configured, at this point it is noted that combinations of the above-mentioned variations are also feasible. In addition, due to its open design, the technology of BUES 2000 offers the possibility of using special applications such as linkage systems with gate controllers, couplings with traffic light signal systems, etc. The type-approval permits are also available for this purpose.


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