In the collaborative research with Kagoshima city conducted in 2008, white lamps showed an advantage in brightness and economy. However in the public testing conducted in modeling areas, impression evaluation and acceptability of blue lamps in brightness and visibility by residents and taxi drivers showed better results than results of illuminance measurement and data provided in catalogues. It is recommended to use blue lamps as a part of compound security measures such as increasing awareness of residents against crimes or stepping up security patrols, with adequate understanding of advantages and disadvantages of blue lamps, and to apply them in harmony with lighting environment of surrounding areas.