My suggested updates to the list:
East Side Access: complete
SEPTA Wawa extension: complete
San Bernardino Redlands Line: complete
Ottawa's Stage 2 is actually three projects: Confederation Line East, Confederation Line West, and Trillium Line South (the last one is a commuter rail project). I'd personally split those projects up.
Phase III of the Purple Line Extension in Los Angeles is U/C.
Re: Metrolink, the ridership (and frequencies) on that system are abysmal. Metrolink reflects the worst tendencies towards building a system that is lots of km long, rather than a system that is useable with good station access, high frequencies, etc. The latest ridership data from APTA shows just 14,300 daily riders - an abysmal number.
