Independent Safety Assessor (ISA)

Our signal and safety experts have more than 30 years of project experience. Therefore we can offer high expertise as Independent Safety Asssessor (ISA) of generic products as well as specific applications.

Assessments are carried out according to the followingCENELEC standards:

  • Systems: EN 50126, EN 50129, EN 50159
  • Software: EN 50128, EN 50657
  • Hardware: Series EN 50121 to EN 50125


Generic products and applications:

  • Fail-safe computer systems
  • Interlocking systems
  • ETCS interoperability constituents
  • Level crossings
  • Lineside equipment


Specific applications:

  • Complete safety installations
  • Implementation of interlockings
  • ETCS subsystems and installations
  • Implementation of level crossings