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Do Your Buses Get Stuck in Traffic? (The Downs-Thomson Paradox)

Not Just Bikes · 693K views · 2020-03-09 · 6:03

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Overview

Not Just Bikes explains the Downs-Thomson paradox using Amsterdam and Toronto: road widening doesn't fix congestion, and buses stuck in traffic make transit slow. It argues for giving transit its own priority infrastructure.

On Hacker News

HN points to it as a clear introduction to why widening roads fails and why transit-only lanes matter.

Recommended by 4 HN people across 4 months · HN mentions 2021–2023

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What people said

rglullis · 2022-05 · Strong recommendation

Please, please watch the videos I linked. Especially the Not Just Bikes channel. For example, this one [VIDEO] can quickly explain why a transport system flooded with autonomous cars and poor public transit would make the overall system worse for everyone . There is also another video that talks about microcars for people with disability and reduced mobility: [LINK] No rational person can watch those videos and conclude that the best course of action to solve urban transportation requires self-driving cars. Getting FSD cars is just a rich nerd fetish which will not solve anything and likely contribute to make suburban sprawl worse.

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ViewTrick1002 · 2023-11 · Recommendation

To reduce congestion you need to speed up and expand the slowest alternative, public transport. That is the only proven method to reduce congestion. The peak demand for car travel is way beyond the infrastructure which is possible to construct and maintain. More info: [VIDEO]

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animal_spirits · 2022-01 · Recommendation

Correct, The Downs-Thomson paradox [1] is a known issue in urban planning stating basically unless you improve public transportation car congestion will continue to get worse. > the equilibrium speed of car traffic on a road network is determined by the average door-to-door speed of equivalent journeys taken by public transport. NotJustBikes has a good introduction to it [2] [1] [LINK] [2] [VIDEO]

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Sources

Video by Not Just Bikes, played through YouTube.

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