Adaptive control system of light beam position of trams head lights

The article proposes and discusses the application of AFS system in trams. The author of the present publication substantiates the need of introducing the solution of foreground lighting of a vehicle, which has already proved effective for motor vehicles, taking into account the specificity of movement of a tram being one of the main means of transport within the framework of urban public transport system. Using the results of laboratory photometric measurements for currently used optical light systems of tram 's head lights, a proposal for the use of new light beams has been presented. The method of realization of adaptive system of light beam control of tram 's head lights has also been demonstrated. In relation to the current photometric requirements in standardization guidelines concerning head lighting of a tram, directions ofchanges have been proposed. Light beam shape of main lights in tram 's foreground defined by isolux range, proposal of automatic light beam control system of a tram, proposal of arrangement of system reflectors within the area of tram car's front are presented in the paper.