Daniel
daytoviz.bsky.social
Daniel
@daytoviz.bsky.social
Urbanism, freshwater ecology, data analysis and health/exercise are my topics of interest. I am not good at social media
I'm expanding my analysis of express buses to look at bus speed across all routes. I'm curious if some routes are meaningfully slower than others, and what characteristics can be correlated with route speed.
December 23, 2025 at 4:04 PM
Also, I made an ugly map of speed on these routes (anyone have tips for how best to do this?)

Both Ashland (9, X9) and Western (49, X49) slow down a lot near the hospital district/290. What bus priority treatments would work best here?
December 17, 2025 at 2:59 AM
3 days of data, 2 for express buses, here's what I've got

Express spacing works! And it works better when there's less traffic. On the other hand - our frequent stop spacing sucks, the non-express routes average like 9mph and even in like the middle of the night they're not going *that* much faster
December 17, 2025 at 2:54 AM
Ok, based on the bus tracker from this morning's rush hour:

* Express stop spacing increases average speed 13% (9.6->10.8mph)

* This advantage is larger with less traffic (24% from 5-6am, 21% from 9-10am)

* No notable difference between 4, 49, 9 routes
December 15, 2025 at 4:15 PM
@nikhunder.com @starlinechicago.bsky.social @mclean.bsky.social @brandonmcfadden.com

Maybe this was redundant but I made a script that is now logging CTA tracker data for express buses and their non-express equivalents. Goal is to see the effect of stop spacing. Any other ideas with this dataset?
December 15, 2025 at 12:28 AM
Before I go and start recording it myself - does anyone know of a dataset of *actual* CTA bus tracking data? I know ghost bus people had a dataset but it's out of date now
December 12, 2025 at 2:57 PM
The last king of Burnham. Many dead salmon floating around post run, this guy still swimming around in his final days. Crystal clear water dotted with leaves, poetic sight this morning.
November 16, 2025 at 3:13 AM
How can we get the rear doors fixed on CTA buses. I'm going insane
October 29, 2025 at 10:24 PM
Reposted by Daniel
here’s more context to the videos DHS is putting out from Chicago.
October 15, 2025 at 12:39 AM
CTA detours are not well communicated and it's very frustrating when you're on a bus and not going where you expect, or when you're at your normal stop and don't get picked up and there's no signage. There is also never an updated route map, just a text description.
August 9, 2025 at 2:51 AM
The rear door in Chicago buses is so bad. And it being bad causes the bus to be slower. Many people exit at the front because they don't know how the rear door operates or can't be bothered with its bullshit. The "touch to open" signage is misleading/inaccurate
July 26, 2025 at 4:21 AM
I am not a finance person, but I crunched some numbers based on the @blockclubchi.bsky.social article on the Bally's minority investment scheme. If we have 10k shares being sold for a 25% ownership stake, we're looking at 40k shares in the casino.
January 24, 2025 at 7:35 PM
Fat tires and flat pedals are so much better and more accessible.
November 20, 2024 at 5:29 PM