We had one day down here a couple of months back when 4 of the 5 roads into town were closed or heavily temporary traffic-light controlled for utility works / water main repairs / resurfacing etc.
Boy was it quiet on the town's ring-road!
Jo, I remember having to access the Aston Expressway one evening off the M6 Southbound (because the slip road down to the Lichfield Road roundabout underneath Spaghetti I'd normally take was closed), taking the right hand curve at the usual steady 45 as there were no speed restrictions showing on the gantries for that turnout, and suddenly finding, with no warning at all, a 20 mph limit sign in front of me.
I wasn't a happy bunny and neither were the drivers behind me .....
Had to go right up to Matalan at 20mph and then divert back up through Aston.