Head-up display technology originally developed for cars has been adapted for light rail applications by Continental Engineering Services, which is planning a first deployment later this year.
CES said the trend towards larger cab windows with low-set dashboards means that tram drivers must make frequent head movements which can distract their attention from the road ahead, while the constant switching between near and far vision can be tiring. The HUD uses a transparent screen in the driver’s field of vision to show information such as signal aspects, speed and distance to the next stop. This is displayed as if it were located at some distance in front of the vehicle, removing the need for the driver to refocus constantly.