Traffic4 May 2020 20:43
This snippet from West Sussex CC gives a good idea of UK traffic numbers -
"Before “lockdown” was announced, the county’s traffic counters recorded a daily total of about 165,000 vehicles on weekdays. In the first three weeks after 23 March, that figure was frequently about 60,000 vehicles a day. But the figures since last Monday (20 April) show an increase to about 72,000 vehicles a day."