This European Standard is applicable for Electrical Multiple Units (EMU), Diesel Multiple Units (DMU), Railcars, Locomotives, Driving Trailers (Driving Coaches). NOTE 1 This European Standard applies to rolling stock in the scope of the Directive 2008/57/EC. This part of EN 16186 applies to driver's desks installed on the left, on the right, or in a central position in the driver's cab. NOTE 2 For OTMs, see EN 14033-1 and EN 15746-1. This European Standard gives design rules and guidance in order to ensure proper visibility, luminance and contrast of screens, controls and indicators in the cab in all operating conditions (day, night, natural or artificial incidental lighting). It covers four aspects:- necessary characteristics of the displays, controls and indicators in order to ensure proper visibility: range of luminance and contrast, and possibility of adjustment of perceived brightness; - rules for positioning of the displays, keyboards, controls and indicators in the cab and on the driver's desk: position, angle of visibility, etc. with consideration of the normal driving position and of the working environment (windscreen, natural or artificial lighting in the cab, unwanted glare and reflections, etc.); - necessary characteristics and rules for positioning of microphone and loudspeaker; - design of symbols.