The data collection (automatic passenger counts) is known to have problems with consistency and accuracy but still prob better than trying to estimate from a sample of in-person counts (especially if the variance is really as high as it looks!)
-
Show this thread
-
Replying to @380kmh
I have an ongoing dialogue with one of our transit planners because I'm pretty convinced the APC counts on my route are just plumb wrong.
1 reply 0 retweets 1 like -
Replying to @sandypsj
No kidding! Nothing better than the look on a municipal official's face when I explain that no, the number boarding doesn't match the number alighting, and that's just an apparently insoluble problem with the technology
1 reply 0 retweets 1 like -
Gets 10000x worse when bus drivers forget to turn the damn thing on tho, and you get days or weeks reporting zero riders
2 replies 0 retweets 1 like -
Replying to @380kmh
yeah. Like, they're insisting to me that the 39--busiest bus in Boston--averages a max of 37 riders at most at PM peak. I've been riding it for ~2 months and only twice been on a bus with fewer than 50 people aboard at its busiest.
1 reply 0 retweets 1 like -
Now, maybe I've gotten systematically unlucky with bunching for two months. But what's a better bet, that the APCs are wonky or that a trained observer like me is that far off?
2 replies 0 retweets 2 likes -
Do they not have any validation protocol?
1 reply 0 retweets 0 likes -
Replying to @garrett_wollman @380kmh
They send people out to do manual checks once a year or so I think. Hopefully not during the summer when school is out and that route is much less busy...
1 reply 0 retweets 1 like -
Replying to @sandypsj @garrett_wollman
we don't have any in-house validation for this, there aren't a lot of practical ways to do so
1 reply 0 retweets 1 like -
Replying to @380kmh @garrett_wollman
There are advantages to working for a big-city MPO ;-)
1 reply 0 retweets 1 like
yes lmao our transit staff is 3 people
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.