I found the APTA ridership numbers
Third quarter APTA ridership results:
- Light rail up 2.7%
- Commuter Rail up 35.1%
- Bus ridership up 15.1%
These numbers are for year over year (YOY)
Note: This years number are fairly useless since a new counting system (apparently) started in January. Interestingly, the commuter rail numbers appear to be unaffected. Here were 1st quarter numbers:
- Light rail down 11.3%
- Commuter rail up 4.0%
- Bus ridership up 10.9%
With respect to the G Line the 3rd quarter was the 1st full quarter of operation. The 35% YOY increase suggests the G Line has about half as much as the A (and B) Line. *
Third quarter weekday ridership looks like this:
- All rail ridership is 142,000 per day
- Light rail ridership is 99,200 per day
- Commuter rail ridership is 42,800 per day
- Bus ridership is 275,000 per day
The other deductive reasoning that could be applied is to use the 1st quarter numbers as a new baseline at least with respect to light rail and bus ridership. Remember January is also when the restructured 'higher' fares started. With 3rd quarter bus ridership being up 15.1% as compared to being up 10.9% in the 1st quarter shows nice growth. Light rail being up 2.7% compared to being down 11.3% in the 1st quarter also shows marked improvement.
* With my final attempt at deductive reasoning I'll guess that the A Line contributed 5% of the 35% YOY commuter rail increase leaving 30% which would be attributed to the G Line opening. 30% of 42,800 weekday ridership would be 12,840 which is a respectable start for the G Line - if reasonably close.