Utah’s traffic hasn’t been this low in 20 years

Editor’s note: The Salt Lake Tribune is providing readers free access to critical local stories about the coronavirus during this time of heightened concern. See more coverage here. To support journalism like this, please consider donating or become a subscriber.Driving on Interstate 15 now during coronavirus shutdowns is smooth sailing — with typical traffic volume about what it was two long decades ago, erasing all the extra congestion from growth since then.“Daily traffic nu