100-cycle power distribution for code train stop
1934 proceedings of fifth annual meeting of institute of traffic engineers
1938 Proceedings of Institute of Traffic Engineers
1940 proceedings -- Eleventh annual meeting
1941 proceedings -- Twelfth annual meeting
Abolishing street traffic intersections without grade separation
Abolition of cruising taxicabs proposed for Pittsburgh
About odors -- Their nature, cause and control
About odors -- Their nature, cause and control
Accident rates at intersections
Accident records as clues to traffic troubles