In 1920 the American street belonged to everyone on it; by 1930 it belonged to cars. Drawing on historian Peter Norton, the episode shows how auto clubs, dealers and manufacturers, calling themselves motordom, reframed street deaths as a pedestrian problem, popularized the word jaywalker, and launched traffic engineering. Streetcars were left stuck in congestion they had not created.
Who's who
Peter D. NortonHistorian of technology; author of Fighting Traffic, the episode's core source
Eli G. FrankensteinCincinnati attorney who chaired the 1923 speed-governor ballot initiative
Charles M. HayesChicago Motor Club president who urged motordom to seize the safety debate
George M. GrahamIndustry safety chairman whose accident service fed newspapers pedestrian-blaming statistics
E. B. LeffertsSouthern California auto club head who led the 1925 anti-jaywalking campaign
Miller McClintockTraffic expert who drafted the Los Angeles Traffic Code of 1925
1915Jitneys peak at roughly 62,000 vehicles nationally
November 1923Cincinnati voters reject a 25 mph governor, 14,012 to 92,427
December 1924Ford cuts the Model T runabout to $260; Hoover's safety conference convenes
January 1925Los Angeles Traffic Code takes effect with anti-jaywalking enforcement
1928Model municipal traffic ordinance spreads pedestrian restrictions nationwide
Still debated
The earliest use of jaywalker is disputed, with sources citing dates between 1909 and 1917. Kansas City has the strongest early enforcement claim, though Los Angeles became the national model. Cincinnati's petition count is roughly 42,000 or 43,000 depending on the source.