European directive on tunnel safety
The safety equipment of our tunnels is based on the EU Directive for the "minimum road tunnel requirements" and the road tunnel safety act (Straßentunnelsicherheitsgesetz, STSG).
Under this act, the following tunnels have to have a second tunnel tube by 2019:
- Tunnels whose traffic volume is more than 10,000 vehicles per day and lane.
- Tunnels with a lower traffic volume must by that time be fitted with an escape route.
- Tunnels that are longer than 500 metres.