The Tiefenbach Grade Crossing System was developed with the aim of providing organizations/bodies involved in the railway sector such as, railway administrations, transport enterprises . local, shortline and mainline authorities with a reliable, safe technology for securing grade crossings in a fully automated manner.

By deliberately using tried and tested components from the Tiefenbach range of axle counting railway technology products, many operational and technical advantages have been secured for the user which make the use of this technology attractive even in areas with simple operational setups, on single-track or multi-track regional lines, mainline railways or on tram and city railway systems offering local public transport.

• Train-operated, direction-dependent strike-in via double wheel sensor (DSS)
  
  
• Blocking off the road area to traffic using roadside signals and electronic audible warning devices, optionally in combination with half-length or full-length barriers and with an interface to traffic lights also possible.
   
• Uniform warning time can be provided when multiple wheel sensors are installed within the approach circuit.
   
• Protection on the track side via a control signal to be observed by the loco-driver (lowest cost version), interlocking station signals or block signals or high-availability switching in combination with remote monitoring also available.
   
• Manual activation also possible via button or key operated switch.
  
  Optional: event recorder with event log and a RS232 interface for printer, notebook, data line or interrogation via radio-transmission.

• The grade crossing technology is modularly structured which makes it possible to install only as many components as are absolutely necessary for correct operation.

Standard Strike-in/Strike-out Track Layout

Uniform Warning Time Track Layout
(multiple sensors (3 - 7) inside the approach)

Safety:

• Axle counting system: 
  Proof of safe operation in accordance with DB's MÜ 8004 Normative and DIN VDE 0831 "Electric railway signalling systems".
  Meets standard North American fail-safe safety standards.
  

• Entire systems:
  Proof of safe operation in accordance with DIN VDE 0831 subject to the Railway Construction and Operation Regulations (EBO Eisenbahn Bau- und Betriebsordung) and the BÜV-NE regulations.
  Meets standard North American fail-safe safety standards.
  

• System Integrity Level:
  SIL 3 (in accordance with IEC 65A Sec 123).

• The control system is modularly structured. This ensures  a lower-cost basic setup for single-track sections as well as the ability to easily expand the system for as many tracks, light signals and barrier systems as are required.
  
   
• Track axle counting systems continue to function independently of ballast parameters, the state of the superstructure, axle shunting, rusty rail or weather conditions.
  
   
• The sensor technology (double wheel sensor) is maintenance free and unaffected by all known sources of interference (e.g. traction reverse currents, rail braking, high voltage catenary lines, RF transmissons, etc.)
  
   
• The control system is designed for installation in exterior control boxes (without climate control!).
  
   
• The axle counting technique for clearing notification ensures high availability since push-pull shunting, vehicle stop or change of direction will not lead to operational hindrances.