A project to reconstruct Greenwood Blvd from Sussex to Canterbury started in March. They will be doing two blocks at a time, first the north side lane on Greenwood, and when that is finished, they will do the south side lane. The entire project is expected to go through the fall (depending on weather delays).
They are currently working on the north side of Greenwood from St Elmo to Picadilly.

This situation reminds me of when they closed highway 64/40 for two years and I think most of us were initially a bit freaked out, then after the first couple weeks we all learned our way around. "The only constant in the universe is change" -- even though most of us are uncomfortable with change. May we all take some deep breaths, allow a little extra time and go with the flow.

You can access Greenwood from Sutton again. You can only turn left to head on Greenwood currently.
You can get to Greenwood again using the Railroad St exit ramp from southbound Big Bend.

There is only one way traffic heading east on Greenwood from the Big Bend end to Picadilly (which is just past the studio).
If traveling North on Big Bend either take the ramp that drops you off on Greenwood heading east, or turn right on Oxford then left on Sussex or Kensington and right on Greenwood.
If traveling South on Big Bend, go to the light at Oxford and turn left, then left on Sussex or Kensington and right on Greenwood.
If traveling South on Big Bend you can take the Railroad St exit ramp which drops you off at Sutton and Greenwood.
To get to Big Bend from the studio head east first, turn right on St Elmo or Picadilly, then right on Oxford and take that to the light at Big Bend.

You still access Greenwood from Canterbury to the east, but only until Picadilly. .
There is a "road closed no thru traffic" sign at Picadilly. You can turn left on Picadilly, right on Cambridge and use that to park on St Elmo, or go all the way to Sussex, turn right and then turn right on Greenwood. There is parking on that end of Greenwood west of the studio (before Shurway auto).
This means there is only one way traffic heading east on Greenwood from the Big Bend end to Picadilly. Then there is two-way traffic from Picadilly all the way to Canterbury on the east end.
If you need to head west to get to Big Bend from the studio head east first, turn right on St Elmo, then right on Oxford and take that to the light at Big Bend.

South side of Greenwood from Sussex all the way to Canterbury.
North side of Greenwood from Canterbury to Picadilly.
East side of Sutton north of the railroad tracks. You will need to walk across the tracks and Greenwood to get to the studio.
North side of Pacific Ave north of the railroad tracks. You will need to walk across the tracks and Greenwood to get to the studio.
Gravel area north of railroad tracks to the west of Sutton.
North and South sides of Greenwood west of the studio from Sussex to Kensington.