City Rail Safety Strides from Bosch

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Source: Bosch announcement

MILAN, Italy – To support the drivers in their demanding role, Bosch Engineering has developed an innovative driver assistance system for city rail transportation.

In the event of a possible collision, it first warns the tram driver by means of a signal. If the driver does not intervene or does so too late, the system automatically brakes the tram until it comes to a complete stop, in order to prevent an impact or at least to reduce it as much as possible.

“The solution is to increase safety in city tram traffic in order to protect human lives as well as prevent material damage, which is occurring with considerably greater frequency. After all, such damage leads to high costs for the rail operators,” explained Heiko Mangold, head of the engineering rail technology business field at Bosch Engineering.

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More safety in urban traffic – higher efficiency for rail operators

The city rail assistance system consists of a multipurpose camera, a radar sensor, and an electronic control unit.

The multipurpose camera perceives the track course as well as vehicles and persons in front of the tram and transmits the information to the radar sensor in real time. The object information of the video and radar system is merged into an overall picture of the surroundings. On this basis, and taking into account the vehicle’s own driving speed, the electronic control unit calculates the current collision risk.

If the assistance system detects a critical approximation, it warns the driver by means of a visual indicator in the cockpit and an acoustic signal. If the tram driver does not react to this within two seconds, a safety function brakes the tram automatically until it comes to a complete stop.

Here, the deceleration takes place so gently that even standing passengers need not fear losing their footing in the tram. After all, rail accidents in particular frequently lead to serious personal damage.

Multiple times higher is the number of tram accidents with material damage. But with the use of this system, all this damage can be reduced significantly or even prevented completely. Therefore, rail operators are able to save costs for expensive repairs, increase the availability of their fleets thanks to fewer rail vehicle breakdowns, and ensure their smooth operation.

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In addition to the increased safety, the system also leads to a tangible reduction in the physical and mental load for the tram drivers.

To view the entire announcement, click HERE.

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