Scene of the Auto v. WES wreck

Here's a Google Street View image of the location where the car turned into the path of a WES train, from almost precisely the exact location (since the automobile was not in the left turn lane).  As one can see, there are four separate signals governing the left turn movement - two railroad crossing signals both near and far side, and two left turn signals.

I will agree, this is not a standard installation so a motorist unfamiliar with the area might be a little confused here.  But I don't see it as a "problem" that needs to be fixed.  Just prior to the intersection is a warning sign advising that there is an intersection with a railroad crossing:

Placing a standard railroad signal here would be difficult, because the through lane on Lombard southbound is not affected by the railroad track.  So a traffic island would need to be constructed to place a standard railroad crossing/gate just for the left turn lane.  And such signals are pretty rare if they exist at all.  I think the only real "improvement" would be to install a left turn signal with the near-side signal (where the railroad wig-wag signal is), but that would require installing a longer span arm and possibly reduce clearance over the railroad track.

Ultimately, this was just a case of a confused motorist who didn't know where they were going - at some point, no amount of warning devices, signals, signs, etc. will stop stupid people.  It's just like people who drive through lowered railroad gates.  And ultimately it was a very minor collision.  Ironically - it was the City of Beaverton that paid millions of dollars in the early 1980s to re-route the Oregon Electric mainline away from downtown and created the St. Marys lead to the west of town, eliminating one of two railroad tracks through downtown...only to essentially rebuild it all.