An operator stands beside an early General Electric traffic signal in Schenectady, New York. (Photo by Schenectady Museum; Hall of Electrical History Foundation/CORBIS/Corbis via Getty Images)

15 Innovations That Shaped the City

A Sidewalk Talk series that explores some of the major advances in urban technology, design, and policy across history — from Roman sewers to real-time transit.

Eric Jaffe
Sep 8, 2017 · 3 min read

Story list:

Sidewalk Talk

Where technologists and urbanists discuss the future of cities.

468

468 claps
Eric Jaffe

Written by

Editorial Director @sidewalklabs

Sidewalk Talk

Where technologists and urbanists discuss the future of cities.