San Diego has started to do this. I'm surprised it's taken so long for this kind of technology to get installed given that there's not really any revolutionary

San Diego has started to do this. I'm surprised it's taken so long for this kind of technology to get installed given that there's not really any revolutionary technology here. http://www.sandiegouniontribune.com/news/politics/sd-me-smart-stoplights-20170309-story.html http://www.sandiegouniontribune.com/news/politics/sd-me-smar...