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Wenover productions does a great video on how increasing traffic lanes makes traffic worse in every city. People who normally wouldn't drive, will now drive thi
by djsumdog 9y ago
Wenover productions does a great video on how increasing traffic lanes makes traffic worse in every city. People who normally wouldn't drive, will now drive thinking they'll be less congestion.
Atlanta had some major closures recently and the city migrated around the problem, people took different paths to work and more people decided to get on public transport.
The fact is car lanes can never reach a fraction of the capacity of a train running at regular intervals. Even if you had nothing but self driving cars running bumper to bumper at 120kph and all filled to a capacity of 4.2 people, on a four lane road, you wouldn't even approach 8% of the capacity of a single rail line running at 2 minute intervals! Singapore's trains are automated. They're already self driving and run at <1.5min intervals during peak hours.
- deleted 9y ago[deleted]
- mseebach 9y agoThere’s something wrong with your numbers. 120kph for two minutes is 1km, or 250 4-meter cars, bumper to bumper. Four lanes, 4.2 occupants, that’s 16,800 passengers per two minutes, which is a full order of magnitude more than a 12-carriage train packed with standing passengers[1] - and the people in the cars are all sitting down. 1: https://en.m.wikipedia.org/wiki/British_Rail_Class_700 https://en.m.wikipedia.org/wiki/British_Rail_Class_700
- djsumdog 9y agohttp://www.oregon.gov/ODOT/RPTD/RPTD%20Document%20Library/maximum-theoretical-person-capacity-24-hour-period.pdf http://www.oregon.gov/ODOT/RPTD/RPTD%20Document%20Library/ma...
- schiffern 9y agoAhh, that explains it. The paper assumes a sane minimum of 1.6 seconds/car (aka 2250 pcphpl), but 4 m spacing at 120 kph would be 0.12 seconds/car.