A89 motorway: final section

The 50 km section between Balbigny and La Tour de Salvigny completes the major East-West motorway and brings the journey time from Lyon to Bordeaux down to five and a quarter hours. The A89 links the Atlantic coast and the Rhône-Alpes region, offering a tangible solution to reduce the isolation of rural territories.

France

A89 motorway: final section

Services provided

Design and build of electromechanical systems installed in the three twin-tube tunnels (total length 11.4 km) in this section, as well as the operational support system.

Technical details

  • Power (HV/LV).
  • Lighting.
  • Ventilation (115 booster fans).
  • Signage (40 variable-message signs).
  • Video (105 cameras).
  • Fire control.
  • Metalwork.
  • Paintwork (100,000 m²).
  • Automation and supervision (20,000 I/Os).
  • Operational support system.

Strengths

Increased availability through system redundancy.

Date 2012
Client ASF

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Road and tunnel equipment