The engineers have been searching for a gas leak for 7 days now.
There seems to be someone on duty 24/7
At least 2 vans, a digger, generator, lights, other stuff. Occasionally management appears and there is a lot of looking and walking up and down. Then tablets are consulted and more probes are driven into the ground.
Their target zone is about 250 m long.
It is marked with amazing hieroglyphs and many investigative probe holes.
They've dug several, many, a lot of 2x2 sized holes and seem to go away for 12 hours
Soon they will have dug up the entire stretch of road.