The problems fout years ago were the gang members stealing bicycles up near Spurgeon Middle School; the Santa Ana Police caught those perps (Kudos to the SAPD!). I haven't been all the way up from the coastline to the Stadium area, but there has been a notable increase in the numbers living on the levee from the Talbert/MacArthur bridge up to the Edinger bridge; a lot between Talbert/MacArthur and Slater/Segerstrom. They're on the west side, the SART path is on the east side. I usually ride it once on the weekends, I haven't had any problems with those that wander over to the east side, or those living under the bridges on the east side; there have been homeless living under the bridges for over a decade from what I can remember.