This European Standard is applicable to railway vehicle driving cabs which are air-conditioned or heated/ventilated. These include: ? locomotives; ? mainline, suburban or regional vehicles; ? urban vehicles such as metros and trams. This European Standard does not consider the special operational requirements of shunt locomotives. This European Standard specifies the comfort parameter measurement methods for driving cabs. The comfort parameters and their tolerances cited in this European Standard are defined in EN 14813-1.