COMPARISON OF LIGHT INTENSITIES OF VARIOUS LOCOMOTIVE HEADLAMPS AND VISUAL RANGE BY HEADLAMP ILLUMINATION

With the increasing train speed more powerful headlamps are demanded to prevent accidents especially at highway crossings. The light intensity distributions of the various headlamps installed in the actual locomotives were measured at the neighborhood of the Shinmachi Station of the Takasaki Line. The photometric property of the sealed beam headlamps is superior to that of the ordinary type. To secure good illumination, two or more headlamps are to be installed in a locomotive.