# Commission Decision of 14 November 2012 concerning the technical specification for interoperability relating to the ‘operation and traffic management’ subsystem of the rail system in the European Union and amending Decision 2007/756/EC (notified under document C(2012) 8075) (Text with EEA relevance) (2012/757/EU), Division 4.2.2.1.2: Front end

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

The railway undertaking must ensure that an approaching train is clearly visible and recognisable as such, by the presence and layout of its lit white front-end lights.
The forward facing front end of the leading vehicle of a train must be fitted with three lights in an isosceles triangle, as shown below. These lights must always be lit when the train is being driven from that end.
The front-end lights must optimise train detectability (marker lights), provide sufficient visibility for the train driver (head lights) by night and during low light conditions and must not dazzle the drivers of oncoming trains.
The spacing, the height above rails, the diameter, the intensity of the lights, the dimensions and shape of the emitted beam in both day and night time operation are defined in Commission Regulation (EU) No 1302/2014 (the ‘rolling stock — locomotives and passenger rolling stock’ TSI (LOC&PAS TSI)) .

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Source: https://www.legislation.gov.uk/eudn/2012/757/annex/I/division/4/division/4.2/division/4.2.2/division/4.2.2.1/division/4.2.2.1.2 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-757/annex-I/division-4/division-4.2/division-4.2.2/division-4.2.2.1/division-4.2.2.1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.