Piccadilly line drivers to strike this week from Wed to Sat

Unless it's called off at the last minute, there will be a tube strike starting on Wednesday evening and lasting until Saturday morning.

Tube Strikes Announced

The tube union ASLEF has confirmed that it will be holding three tube strikes over the next few weeks.

Did the tube strike improve London’s economy?

Do tube strikes cost the economy millions of pounds in lost productivity, or do they shake up people and change behaviour in a way that offsets the loss?

Tube Strike Tube Map

Based on TfL's info here what I estimate the tube map will look like on strike days.