How to sign your tunnels?

 

Following two disastrous fires in 1999 which occurred in the Mont Blanc Tunnel (France-Italy) and the Tauern Tunnel (Austria), several actions were undertaken and were enacted on the 20th of April 2004 on a European Directive laying down minimum safety requirements applicable to tunnels in the Trans European road network. Some of these requirements deal with information for users.

 

 

The challenge

  • Provide information for users
  • Warn of risks
  • Close/reassign  lanes
  • Pedestrian management

The LACROIX City solution

 

Inform road users before the tunnel using variable message signs

 

Variable message signs

 

Direct traffic before the tunnel with automatic breakdown barriers:

> Divert traffic
> Closure of one or more lanes

 

Automatic lane closure barriers

 

Physical closure of the tunnel access with:

> Breakdown barriers coupled with R24 traffic lights
> An entry prohibited sign above the tunnel entrance (R21 or B21)

 

Alumix range

 

Direct traffic and inform users inside the tunnel with equipment adapted to the constraints of the tunnel environment and defined by the Directive

> Breakdown barriers coupled with R24 traffic lights
> An entry prohibited sign above the tunnel entrance (R21 or B21)

 

Variable message signsLane assignment signs

 

Direct pedestrian traffic using illuminated signs:

> Emergency exits
> Refuges
> Fire extinguishers
> Emergency call posts
> Others