I note from the yellow signs that work is being undertaken to "improve" the Sainsbury's Roundabout.

The work will be undertaken at night to avoid disruption. The work will take place between 19.00 and midnight (four hours). that is 1 hour to cone off, 1 hour for teabreaks, 1 hour to remove cones. This leaves approx 1 hour per night to do the work.

Seems a very uneconomic use of manpower. Why not work through the night and get the job done quicker?