The SW Corridor refers to the large area extending from SW Portland down I-5 to Sherwood, an area which is growing quickly yet lacks public transportation options to keep up with the increasing traffic.
The upcoming SW Corridor plan includes the addition of a new Max line that would extend from the South Waterfront all the way down to Bridgeport Village, added bike lanes, bus lanes, sidewalks, and park & ride lots to help clear up the I-5 traffic.
According to Tri-Met, voters in Tigard will have the power to make this reality in the November ballot.
I'm really hopeful this next phase of Portland's light rail project will come to fruition. Traffic to and from Tigard and all around 217 is just a bear!
Take a look at this article to learn more about the project:
http://www.oregonmetro.gov/news/looking-ahead-10-questions-about-southwest-corridor