# Directive 2004/54/EC of the European Parliament and of the Council of 29 April 2004 on minimum safety requirements for tunnels in the trans-European road network, Division 2.3.3: Emergency exits allow tunnel users to leave the tunnel without their vehicles and reach a safe place in the event of an accident or a fire and also provide access on foot to the tunnel for emergency services. Examples of such emergency exits are:

Extent: E+W+S+N.I.

direct exits from the tunnel to the outside,
cross-connections between tunnel tubes,
exits to an emergency gallery,
shelters with an escape route separate from the tunnel tube.

---
Source: https://www.legislation.gov.uk/eudr/2004/54/annex/I/division/2.3.3 (the official version)
Page: https://openlegislation.uk/eu-directive-2004-54/annex-I/division-2.3.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.