Comment by mmooss
2 days ago
> All in the name of laziness, not safety.
Bikes are different machines with different capabilities and parameters. That they aren't used like cars isn't laziness or even lack of personal safety, but maybe lack of discipline to operate as if it has the capabilities and parameters of a car.
Whatever the motive, it's still dangerous because everything on the road needs to operate in an integrated system of rules. Bikes acting like bikes are unpredictable and using different rules.
But consider the functional differences:
> Contested stop signs are a prime example. For every cyclist who stops properly, 99 blaze through with attitude.
Bicycles both stop much more quickly than cars and take more effort to restart. Restarting from a stop and accelerating to full speed takes energy and wears on tired muscles - and it's not just one intersection but 100 in one ride.
So many times I've seen bikes approach the intersection at moderate speed. That's dangerous in a car - you might need to stop short, you might hit someone or something with your 2,000 lbs metal object which could cause serious harm even at slow speeds. On a bike it's fine - you can easily stop your 200 lbs object, which is also much smaller and more maneuverable and thus avoids collisions easily, and which does little harm at slow speeds.
So the bike does the bike thing, but the car sees a car thing: The car see the bike moving at a normal rate, and assumes it will act like a car and drive right into the intersection. The car stops and lets the bike go first.
> run red lights
At lights, bikes are like (very fast) pedestrians. On foot, at least in the US and many parts of the world, if the road is clear people don't wait for the light, they just cross. Functionally, there's no reason for bikes to do differently. That's dangerous to do in a car because their size and lack of maneuverability makes them big targets and makes accidents hard to avoid, and because they cause serious harm even at slow speeds.
> cut across three lanes of without blinking
Again, bikes are much smaller (able to fit in small spaces) and much moremanueverable. It makes some sense for a cyclist; it would be far more dangerous in a car.
>Bicycles both stop much more quickly than cars
They really don't. Even if you slam brakes and OTB on a bike you will still fly further ahead than a car doing double your speed will travel after applying brakes normally. This is the insanity of running stop signs on a bike - you can't stop, you cannot swerve nearly as quickly as a car and you will take much more damage when T-boned than a car driver would yet you believe it's safer because:
> take more effort to restart.
Yeah, it's not laziness, it's science and shiet.
I think that's just wrong. Bikes stop on a dime (unless going high road-bike speeds), and are much more maneuverable due to their mass and two wheels, and are effectively much more maneuverable because their dimensions make it much easier to avoid objects and fit into the many more spaces than cars can fit in.
In my experience as someone who rides a bike with hydraulic disc brakes and drives frequently, they really don't stop very quickly. I pretty much always am more confident I can stop my car faster. The bike may have a lot less mass but it also has a lot less traction and it's much easier to lock up a wheel and skid instead of stopping quickly, especially in poor conditions/on road paint. I do cycle fairly fast, but this is on a mountain bike on the road, certainly not fast compared to a fit person on a road bike.
I will give you that they're much more maneuverabile and accidents can often be avoided by putting the bike into a space in the road that a car couldn't go into.
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You obviously have not rode a bike for a long while if ever.