Supervision systems, Neuchâtel, Switzerland

Part of the crucial link between the economic centres of Zurich and Geneva, the city of Neuchâtel is crossed by 20 km of two-lane motorway, of which 16 km in tunnels.All of the supervision systems were fully overhauled, enhancing safety and traffic flow for over 40,000 vehicles per day.


Supervision systems in Neuchâtel: Traffic management – Mobility

Services provided

  • Complete overhaul of the previous architecture installed by Mobility 25 years ago.
  • Transition into the era of virtualisation and Web 2.0.
  • Work carried out at night concurrently with around ten other companies.

Technical details

  • Gateway for the gradual switch from the old architecture to the new.
  • Canton-wide hypervisor (70,000 I/Os) unifying all of the supervision systems.
  • General traffic management: expert system combining calculated rules and pre-programmed scenarios (1,300 signals).
  • West and Serrières tunnel traffic management (1,500 signals).
  • Management of auxiliary systems (1,400 devices).
  • Ventilation management (six extractors + eight fans + 34 boosters).
  • Design and implementation of the fully virtualised architecture.


  • Web 2.0 HMI.
  • Continuity of operation: work carried out at night, reopened to traffic every morning.
  • Concurrent work: stronger coordination.
  • @way inside.

Date 2016
Client OFROU

Traffic management