Rich walks 20+200= <<20+200=220>>220 feet to get to the end of the road.
He then walks double that distance, 220*2= <<220*2=440>>440 feet to the next intersection.
This makes a total of 220+440= <<220+440=660>>660 feet.
He then walks half that distance, 660/2= <<660/2=330>>330 feet to get to the end of his route.
This makes a total of 660+330=<<660+330=990>>990 feet so far.
He then walks that same distance back, for a total of 990*2= <<990*2=1980>>1980 feet in total.
#### 1980