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Denmark has a partial lockdown since March 11th. Bars, restaurants, hairdressers, fitness centers, etc. are closed. People are encouraged to work from home if possible. Factories, workshops, groceries etc are not closed.
The effect on traffic is interesting. The latest statistics for the state roads is that the traffic has been reduced by 47% on March 23rd when compared to February 28th. No statistics for county or other roads, but the numbers for traffic accidents has dropped by approximately 54% so it is fair guess that traffic has been cut in half. Source: https://jyllands-posten.dk/indland/ECE12038752/fakta-og-tal-fra-et-lukket-land/ [jyllands-posten.dk] (direct google translate doesn't work so you have to copy-paste).
Statistics for other countries will likely be different due to differences in population density, infrastructure, urban sprawl, etc.
People of course don't currently drive to the fitness center or cinema, but a drop of ~50% seems surprisingly large to me. Do people really make that many non-essential trips?
Please enlighten us with traffic and traffic accident numbers from your country if they are available.