I estimated back during my week long commute on the WES, and even before what the rider levels would be. I was spot on +- about 5 riders per trip.
My original spreadsheet is below (I created this table via Excel back on February 3rd).
| Station | Total Per Station | Drive Up Guess | Riders |
| Beaverton Transit Center | 86 | 15 | 2392 |
| Hall/Nimbus | 76 | 10 | 456 |
| Tigard | 121 | 15 | 760 |
| Tualatin | 201 | 15 | 152 |
| Wilsonville Station | 447 | 25 | 1520 |
| 0 | |||
| Total For Route | 931 | 80 | 5280 |
| Best Total | 1547 | ||
| My Estimate Total | 1800 | ||
| Reasonable Total | 1238 | My Bet | |
| Optimistic Total | 3000 |
Now I'm thinking of doing an estimate for the Green Line to see how close I can get. Of course, the Green line will take a LOT more calculations as the stations are greater, the inputs are greater, and there are tons of bus lines to figure out. On that note, maybe Mr. Rose, Al M, Erik H, or some other want to weigh in with their estimates? If you have any thoughts on what the rider levels will be, please comment, I'd love to have a little unofficial guess work going on. 🙂
So what are the guesses? I'll narrow it to average riders per day for the first year. Will it be 6,000 per day, 15,000, or 45,000? Let me know!
Transit Sleuth 
Golly Gee Adron, when it comes to spreadsheets and calculations, YOU ARE DA MAN!
I am not very good at that sort of thing!
In all honesty, I’m almost shocked that I have been as accurate on my estimations about the WES as I am. I didn’t study it all that much, not nearly as much as I have auto, bus, and light rail & heavy rail intercity usage.
But I’m not complaining. I like to keep a solid perspective on the numbers.
My personal observations from a few WES rides seem to indicate there is heavier usage Tigard TC-Beaverton TC, although Tualatin usage is higher than what I would imagine.
Hall/Nimbus ridership is awful and goes right in line with the quality of the station…in short it broke every rule TriMet has for good transit access and the ridership shows. You don’t build a transit station behind a strip mall with no pedestrian access and crap for transit transfers.
You got that right about the Hall/Nimbus. They really did short change the stop. When I got off there, I couldn’t even figure out where the stupid bus stop was. They didn’t even upgrade it to something reasonable like an easy to see covered stop. It’s merely a sign post stop.
Probably was more originally, but when the budget started seeping they probably cut back. Either way, the Hall/Nimbus stop is in bad shape for ridership.