Why can’t sanitation workers work in windy, rainy and foggy weather?

On a day like the one you mentioned, the "visibility" on the road will be very poor, and it will be difficult for the driver to see whether there is anyone in front of him. Moreover, it is rainy and the road is slippery, making it easy to cause an accident. Sanitation workers working on the motorway It's even more dangerous.

However, generally in cities, such weather rarely occurs. At most, if it is windy and rainy, sanitation workers will still go to work. It is a very hard occupation.