This Week In Public Transit

Transcript 29 lines

Cold Open Stats Overview Paper Walkthrough free_promo

Cold Open

Jenny Would you ride a bus with no driver if someone was still there to help?

Davis I think I would, which is funny, because the part that makes it feel safe is not the robot, it's the person who can answer, unlock, notice, and intervene.

Jenny That's where I got stuck too, because agencies seem interested in automation for safety, but when the bus gets more automated, they still picture a human onboard.

Davis So the future bus still comes with a job description, especially for paratransit and dial-a-ride trips, where help getting on, routing, and trust aren't extras.

Jenny Exactly, and this week the research keeps saying transit tech only works when people can actually use it, so...welcome to This Week In Public Transit on paperboy.fm.

Stats Overview

Davis This week, the feed is bigger. We had 12 search hits, 11 qualified papers, 39 unique authors, and 6 countries. So the picture is broader than last week, but it still isn't huge.

Jenny Qualified papers rose from 7 to 11, a 57 percent jump. The themes tell me why this feels wider: public transit, urban planning, and public health all show up near the top, which fits the episode's through-line about trust, access, and human support, not just vehicles and apps.

Davis The search pool also rose from 8 to 12 hits, so that's a 50 percent lift before screening. And authors went from 29 to 39, which means the growth isn't just one big team publishing a cluster.

Jenny I do want to be careful there. We have 6 countries, up from 5, with the USA and China at 2 papers each, but the data lists 0 unique cities and 0 institutions. So we can say international spread, but we can't say whether this is concentrated in particular transit agencies, universities, or metros.

Davis Methods are pretty people-facing this week. Surveys lead with 4 papers, then quantitative work and case studies at 2 each. That matters because if the future is supposed to be usable transit, not just smarter transit, asking riders and operators is part of the evidence base.

Jenny The author mix is also young-ish. Out of 39 authors, 16 are first-time authors, meaning first-ever paper by the metadata, 15 are emerging, and 8 are experienced. That's exciting, but it's also a reminder to check replication and methods before treating this week's rise as a settled trend.

Paper Walkthrough

Paper 1 Transit Agency Perspectives on Bus Transit Automation Technologies in Rural, Small-Urban, and Urban U.S. Communities: A Pre-Pandemic National Baseline

Jenny Alright, let's get into the papers with R. Godavarthy and Jill Hough's Transit Agency Perspectives on Bus Transit Automation Technologies in Rural, Small-Urban, and Urban U.S. Communities, published in Future Transportation in twenty twenty-six.

Jenny The simple finding is that bus automation readiness looks completely different by community size. In a national survey of two hundred fifty-eight U.S. transit agencies, they had one hundred fifty-seven rural responses, sixty-seven small-urban responses, and thirty-four urban responses, and sixty-five percent of rural agencies were unfamiliar with SAE automation levels, which is the standard one-to-five scale for how much driving the vehicle can do, compared with twenty-three percent of urban agencies.

Davis If safety is the main reason agencies want automation, why do they still want an onboard operator or agent, especially for level four and five vehicles that can handle much or all of the driving in defined conditions?

Jenny Because the agencies weren't just thinking about steering and braking. The survey, run through the Small Urban and Rural Transit Center just before COVID, found agencies liked near-term tools like collision avoidance, curb avoidance, and lane-keep assist, but they still expected a person onboard for customer support and environment monitoring, especially in ADA paratransit and demand-response service where riders may need hands-on help.

Jenny The big caveat is timing. This is a pre-pandemic baseline, so two hundred fifty-eight agencies make it a useful national snapshot, but it tells us where the industry stood before COVID and before later shuttle demonstrations changed the conversation.

Davis That makes the automation lesson feel less flashy and more practical. If rural agencies face state-mediated procurement, missing digital infrastructure, rough physical infrastructure, and riders who need personal assistance, then the thread is clear: automation needs humans, not just better sensors.

Paper 2 Promoting Health Equity Through Tax-Funded Zero-Fare Public Transit: A Survey of Voters From Kansas City, MO.

Davis That last paper had two hundred fifty-eight agencies saying automation still needs a person onboard, and this one flips the question to voters who have to fund the system. The paper is Promoting Health Equity Through Tax-Funded Zero-Fare Public Transit, from Health Promotion Practice, and it looks at Kansas City, Missouri.

Davis The headline is pretty striking. In a survey of two thousand five hundred seventy-seven randomly sampled Kansas City voters, eighty-four point four three percent supported the current tax for public transit, and seventy-two point four five percent supported a possible future tax.

Davis The free-fare piece is the hook. Among people who didn't know Kansas City buses were fare-free, forty-eight point two six percent supported the current tax, but among people who did know, support was seventy-one point zero six percent.

Jenny How do we know that's about free fares, though, and not just regular riders being more pro-transit already?

Davis Good push, because this is a cross-sectional survey, meaning one snapshot in time, not a trial that proves cause and effect. The authors did compare groups with two-sample proportion tests, basically checking whether the support gaps were bigger than you'd expect by chance, and the awareness gap was statistically strong, with p less than point zero zero one. Recent bus use and living near a bus stop were also tied to support, so the cleanest reading is that awareness of benefits travels with trust, not that a flyer magically creates a yes vote. And the big limit is obvious: strong evidence for Kansas City voters, one city, one local political context.

Jenny That feels like the Trust Funds the System thread in miniature. If an agency relies on taxes, then fare policy and communication aren't side quests; they're part of the funding strategy. Solid enough to take seriously in Kansas City, not a blank check for every ballot measure everywhere.

Paper 3 A Non-Greedy Spatially Indexed Route-Finding Algorithm for Public Transit in Kathmandu Valley

Jenny That Kansas City paper was about trust making a system fundable; this one is about something even more basic, which is whether riders can see the system at all. It's called A Non-Greedy Spatially Indexed Route-Finding Algorithm for Public Transit in Kathmandu Valley, by Sohan Mehta and colleagues, and it's set in Nepal, where Kathmandu, Lalitpur, and Bhaktapur have routes that mainstream apps don't reliably map.

Jenny The plain version is: they built an offline phone routing tool for a messy bus network, using local data instead of waiting for Google Maps to understand it. The team physically collected fifty-five routes and over six hundred GPS-mapped stops, then divided the city into five hundred meter by five hundred meter grid cells, so the app can quickly find nearby stops without searching the whole map.

Davis But does a faster routing algorithm actually solve the rider's problem if the service is informal and changing? I mean, if the bus stand moves, or a route quietly shifts, zero point one five milliseconds doesn't help you much.

Jenny That's the right pressure point, and the authors partly answer it by designing around actual Kathmandu quirks: linear routes, one-way circular routes like Ring Road, and hybrid lollipop routes, where a route has a loop at one end. Their search isn't greedy, meaning it doesn't just grab the first route that looks closest; it scores options with penalties for transfers, travel time, and walking distance, and it found direct routes in zero point one five milliseconds and one-transfer routes in five point three seven milliseconds, far under their two hundred millisecond real-time target. The limitation is that this works best where the supposedly informal network still has fixed routes you can map and maintain.

Davis That lands squarely in the Access Is Designed thread for me. The practical takeaway isn't “build a clever app” in the abstract; it's “send people out, map the six hundred stops, respect the weird circular route, and make the system legible on a cheap phone without a live data connection.”

This Week In Public Transit

Transit’s Future Is Political, Not Just Technical

Episode

Cold Open

Stats Overview

Paper Walkthrough

Paper 1 Transit Agency Perspectives on Bus Transit Automation Technologies in Rural, Small-Urban, and Urban U.S. Communities: A Pre-Pandemic National Baseline

Paper 2 Promoting Health Equity Through Tax-Funded Zero-Fare Public Transit: A Survey of Voters From Kansas City, MO.

Paper 3 A Non-Greedy Spatially Indexed Route-Finding Algorithm for Public Transit in Kathmandu Valley

free_promo

Other Episodes

This Week In Public Transit

Transit’s Future Is Political, Not Just Technical

Episode

Cold Open

Stats Overview

Paper Walkthrough

Paper 1 Transit Agency Perspectives on Bus Transit Automation Technologies in Rural, Small-Urban, and Urban U.S. Communities: A Pre-Pandemic National Baseline

Paper 2 Promoting Health Equity Through Tax-Funded Zero-Fare Public Transit: A Survey of Voters From Kansas City, MO.

Paper 3 A Non-Greedy Spatially Indexed Route-Finding Algorithm for Public Transit in Kathmandu Valley

free_promo

Other Episodes

Get This Week In Public Transit by email