1. A traffic control signal comprising: a main housing; illuminating means in said main housing comprising a light source; a control signal panel mounted to a front portion of said main housing; control signal means in said panel comprising a first central region of a specified geometrical shape, a first opaque border region surrounding said central region and having the same geometrical shape as said central region, an illuminated track region through which emanates light from said light source of said illuminating means, said light being white light, and a second opaque border region surrounding said track region, said first and second opaque border regions sandwiching therebetween said track region, each of said second opaque region and said track region also being and the same geometrical shape as said central region and each having substantially the same width; said track region being of greater light intensity as compared with said central region, whereby said track region may be used by a color blind person.