Access to the High Street in Watford is being closed from Water Lane - by the blue pyramid - in order to prepare for a "safe, phased reopening" of the town centre, the borough council has said.
The authority said Hertfordshire County Council was closing the road from tomorrow with no access to the lower part of the High Street through to Kings Street for vehicles except for buses, delivery vehicles, taxis and blue badge holders.
It's to allow visitors, and those who work in the town centre, to move around safely, queue if needed and maintain social distancing.
The town's elected mayor, Peter Taylor, said: "Watford town centre is such an important part of our town and we know people will be looking forward to seeing it come to life again.
"However, it is critical we put everyone’s safety first and making sure people have enough shared space is vital... but we must remember staying at home is still the best way to stay safe and stop the spread of the virus."