Eleven solutions of a street lighting problem

In the summer of 1923, the Committee on Papers of the Illuminating Engineering Society, submitted a problem to a number of members interested in street lighting. The subject was one mile of thoroughfare, forming one of the main arteries of travel in and out of a city of 100,000 population. The street was 40 ft. wide from curb to curb, and 70 ft. between property lines. Lines of trolley poles extended along each side of the street.