Chart of the Day: 1929 Signal Schedule and Traffic Flow Diagram
Here’s an insane looking chart from streets.mn alumnus David Levinson’s Transportationist blog, showing a “Typical Signal Schedule and Traffic Flow Diagram, North-South across Market Street, San Francisco (1929) [with a] “green wave” set to 10.5 MPH.” Peep your eyes on this! The complex trade-offs that go into something as seemingly simple as how to program […]







