car go further faster, and car more useful when not in big city.
this post was submitted on 23 Feb 2025
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Not probably, a human riding a bicycle is the most efficient way to convert energy into movement. No other vehicle or animal can be as efficient.
Someone can probably do the math, but i have a hunch that humans are technically not very fuel efficient if you look at calories burned pr the total mass being moved along.
But whatever it is biking is awesome, but being technically correct is even better.
Humans are actually unusually energy efficient for mammals when walking and even more so when cycling. Here's a little info graphic showing a breakdown.
One thing to keep in mind if you have a dog is they're less energy efficient than humans. While dogs can run faster, a reasonably fit human can easily out distance an equally fit dog when walking or distance running.
Nice graphic. ~~But it seems like it doesn't factor in kg of mass moved. A human and a bike is a lot lighter than a car or a horse. You could also argue that the vehicle weigh should be ignored but then again you could easily argue back that weight of goods move can possibly be a lot higher with a car if you load it up to capacity~~. Ignore that. I did not see it said 5 riders for the car
I'm back with better data. I'm assuming the travel path is perfectly flat because I don't feel like modeling elevation changes. I'm being energy efficient (read: lazy).
For cycling, I'm using the global average human weight of 62 kg, assuming the cycle is 8 kg, and the pace is 10 kph, which is pretty relaxed.
For walking, I'm using the 62 kg person walking at 4 kph.
For driving with petrol, we'll use the same spherical 62 kg human and a 2024 Toyota Prius with a fuel efficiency of 4.8 L/100 km and a mass of 1570 kg. One liter of petrol is approximately 8174 kcal. Double the energy expenditure for an estimate for your typical SUV.
For electric, I chose a 2024 Hyundai Ioniq 5 N with an energy efficiency of 21.2 kWh/100km and a mass of 2235 kg. One kilowatt-hour is approximately 860 kcal.
Walking: 0.74 kcal•km^-1^•kg^-1^
Cycling: 0.34 kcal•km^-1^•kg^-1^
Driving(p): 0.24 kcal•km^-1^•kg^-1^
Driving(e): 0.08 kcal•km^-1^•kg^-1^
It still doesn't give us kcal•km^-1^•kg^-1^ (or an equivalent), which is what I was looking for. We could do some math to get us some loose estimates, though. I'll do exactly that and report back shortly.
Quick math shows I am quite a bit more efficient than a Nissan Juke traveling 150 miles at 19mph. About 50kcal/pound for the car and 8kcal/pound for me+bike to travel the distance.
I feel like 'total mass being moved' is irrelevent if most of that mass is useless (car motor/metal frame/plastic/etc).
Even if a car motor was more efficient per kg, most of the work is wasted on moving the actual car itself, regardless of the passengers & cargo.
Bikes clearly use less energy to displace 'useful mass' than a car, so they are more efficient in that sense.
I'm disabled in a way that means I can't use one, but can use a car, which kinda sucks.
Fortunately bike infrastructure usually helps me in my chair, so I'm all in favor of wider bike adoption.
I don’t know your limitations, but you’d be surprised at the number of ways cycling can be made accessible.
For example, there are handbikes that attach to a wheelchair. As with all assistive tech it depends on your specific situation what is possible.
That blows. Glad the infrastructure helps your chair get around, though. Also, every biker not using a car gives you more space, so that's an additional plus
Welcome to the Netherlands. If there's anything that fills me with pride it's our cycling culture. Most people have a car too, but I don't, and I do everything by bike and public transport.
Denmark checking in. Not unusual for people in the city not to have a car. I’m happy with my bike that I use every workday to cycle into the city centrum in all weather - I love dressing myself up in rain boots, rain paints and rain jacket and be on my way in heavy rain or snow, feeling like I’m in an episode of Deadliest Catch
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Arrive to work soaked in sweat because it's been 100+ degrees every day for the past 8 weeks.
You lose the benefits of it being cheap, but an ebike is a decent solution
I rode one for a while in college.
Didn't really help with the sweat problem between April and October in Texas. Or was less work than pedaling, but nothing aside from air conditioning helps with the sweat issue in Texas summer heat.
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Well, that is largely caused by cars.
Workplaces that require employees to be presentable then offer locker rooms, showers, and enough reasonable time to get ready to accommodate the fact that everyone who works a service job arrives soaked in sweat.
"Just leave it anywhere there is a secure structure" - Yes, I see this regularly when I have to maneuver around bikes carelessly "parked" in the middle of the pedestrian walkway...
The one downside is that a lot of people I know have had some nasty accidents and broke a bone or something. Sure, in cars you are also at the risk of kissing a tree at highway speed, but bike accidents feel a lot more common and have a lot less protective metal involved
I've wiped out a bunch of times on my motorcycle, never broke anything. I wiped out on my bike, broken arm.
The solution is clear: mandate motorcycle jackets and helmets for bicyclists.
I've known a few people killed in car accidents. I know lots of people who have had bike accidents, but none of them died, and the only ones with serious injuries were when they got hit by a car.
Enables people with mobility issues
Allows people to move about farther than just a few miles or so
Allows people to transport a lot of goods (and/or heavy goods) easily
Doesn't make you exhausted if you have to go up hills
AIR CONDITIONING/HEATER
Fuck your walkable/bike nightmare "utopia".
I agree with your points, trains are fucking awesome too.
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