This chapter considers the design of headlamps and signal lamps taking into consideration the perceptual and psychomotor performance of motorists. The first section defines terms relevant to the field. The next section outlines theoretical considerations in connection with headlamps, discusses past research and considers future research. Topics discussed include computer models of headlamp performance, changeable beam pattern, polarised headlighting, discomfort glare, international harmonisation of low-beam performance, high-density discharge headlamps and ultraviolet headlamps. Theoretical considerations and past and future research relating to vehicle signal lamps are then examined. Topics covered include advanced indication of braking, daytime running lights, lamp rise time, international harmonisation, high contrast and body-colour brake lamps and a systems approach.
Abstract