"Cyclists can reach speeds of 30 mph or more, so what makes them that different from cars?
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As a follow-up to this op-ed, I also got an email from my deranged frequent correspondent, Robert Casper Sr. of San Rafael.
The subject line: "Evil bikers"
Kinetic energy of a bike and truck with 2 kids and an operator going their maximum speed.
Urban Arrow cargo bike @ 28 mph: 176 kJ
Ford 150 Lighting truck @ 111 mph: 41069 kJ
The latter is capable of delivering 200 times as much energy, but other than that they're the same.
Correction:
The Urban Arrow tops out at 20 mph, so it's actually a difference of ~400 times as much energy.
If you make it a roadie going 30 mph, the truck can deliver 500 times as much energy.
Also, if the writers think that having license plates on a vehicle "deters reckless behavior," I've got bad news about drivers.
I get over 40 mph on a bike on my way home from work. Besides taking up less room & not polluting, worst case, I would do about 90% less damage in a collision than the lightest car on the road.
Unless the car is going faster, or I'm going uphill or on a flat road.
I think if you do the math it would come out to about 99% less damage (or at least 99% less energy transferred).
They’re zooming down the street at 30 mph but they’re also holding up traffic.
i would happily avoid riding through downtown suasalito, which is stressful and unpleasant, if there were another viable way to get to marin on the road.
Beyond parody
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