You think Cleveland was progressive for having the first working traffic light? Try this "rolling road" from 1905.
Think of it like those moving walkways at the airport, except way bigger, and designed to carry wagons, people, horses, and supplies up the hill.
The pic is from a 1905 issue of Popular Mechanics, and the article says the "rolling road" was 420-feet long, climbed a 65-foot hill, and moved along at a brisk 4 mph. It cost $0.02 for a person to use it, $0.25 for a vehicle, and it bridged a path no "teamsters" felt comfortable traversing before, thus saving them a fifty-minute trip around the area.