UC Davis:

Traffic accidents and crash-related injuries and deaths were reduced by half during the first three weeks of California’s shelter-in-place order, which began March 20. The reductions save the state an estimated $40 million per day — about $1 billion over the time period — according to an updated special report released this week from the Road Ecology Center at the University of California, Davis.

The report, “Impact of COVID-19 on California Traffic Crashes,” is published on the center’s website. Its maps, charts and findings compare hot spots for injuries and fatal crashes on state highways and major roads patrolled by the California Highway Patrol between Feb. 27 and April 11, 2020 — the days leading up to and following the order — and the same period in 2019.

Altogether, the reduction amounts to about 15,000 fewer collisions per month and 6,000 fewer injuries or fatal accidents per month that can be directly attributed to the shelter-in-place order.

I’m sure the results of this report would be replicated in every other area where shelter in place orders were implemented.