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Impacts of transportation network companies on urban mobility

Mi Diao, Hui Kong, Jinhua Zhao

2021 · Nature Sustainability

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4 selected excerpts · 4 total mentions

Timshel
Neutral mention · rule
In general, I don't think human sucks at driving, but there are many times when any driver can be extremely dangerous for many reasons. Many of those reasons are illegal (alcohol, fiddling with your phone) so it's not a question of fairness an automated program was supposed to be better than that. I don't see anything unfair in requiring that automated driving which is supposed to not be afflicted from our human failing to not perform illegal and dangerous driving ... Especially since autonomous driving might bring more car not less (similar to Uber and Lift impact https://www.nature.com/articles/s41893-020-00678-z#Sec8 )
Original comment Waymo illegal overtake into wrong-way driving
xyst
Neutral mention · rule
Great, more cars on the road. I don’t know why people are excited. Whether it’s self driving or driven by a meat bag, it just means one more car on the road. One more car sitting in a parking lot/street/parking garage or driving around aimlessly until it gets assigned. Instead of helping to alleviate traffic. TNCs were shown to actually increase traffic in urban areas [1]. I expect this won’t be any different with “self driving” vehicles. [1] https://www.nature.com/articles/s41893-020-00678-z
Original comment California Approves Waymo Expansion to Los Angeles and SF Peninsula [pdf]
endisneigh
Neutral mention · rule
Mainstream full self driving would just create massive traffic and gridlock - pointless in the end. The induced demand would outweigh the benefits. States are better off acknowledging that sprawling car dependent cities are not sustainable. High frequency busses in the interim with rail transit is the real solution. Current self driving technology plus some key infrastructure changes with dedicated bus lanes and prioritization is already good enough to have automated busses cart people around. Just think about it - what happens when everyone has a self driving car? All of those cars that are otherwise parked are now on the road. Traffic. Same thing that happened pre-COVID…
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with "ridesharing". (https://www.nature.com/articles/s41893-020-00678-z) > The role of transportation network companies (TNCs) in the urban transport system is under intense debate. In this study, we systematically assess three aspects of the net impacts of TNCs on urban mobility in the United States—road congestion, transit ridership and private vehicle ownership—and examine how these impacts have evolved over time. Based on a set of fixed-effect panel models estimated using metropolitan statistical area level data, we find that the entrance of TNCs led to increased road congestion in terms of both intensity (by 0.9%) and duration (by 4.5%), an 8.9% decline in transit ridership and an insignificant change in vehicle ownership. Despite the ideal of providing a sustainable mobility solution by promoting large-scale car sharing, our analysis suggests that TNCs have intensified urban transport challenges since their debut in the United States. Or we can continue burning tens of billions on self driving personal vehicles.
Original comment California passes law banning Tesla from calling software FSD

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