As a bicyclist, I would love to have a dedicated network of bicycle track all over town. But it doesn't exist, yet.
Also, this is way fuzzier than you present. There's little conflict between cars and bikes on lightly traveled, spacious suburban streets or sleepy neighborhood county roads. Even on collectors & minor arterials, on an e-bike I travel about the same speed as a slow car.
Speed delta is not an incorrect observation, but varies in significance. In terms of priorities, highways are certainly top candidates for the first dedicated bike tracks.
Sure, some businesses complain, but overall number of bikes on the road seems to have increased.
https://cyclingmagazine.ca/sections/news/opposition-to-propo...
http://dailyhive.com/vancouver/mobi-bike-share-vancouver-rid...
Most cyclists are slower than the speed limit on most roads, but this does not occur "virtually always". Don't assume. Check the speed limit and the cyclist's speed!
As a cyclist, I find it really irritating to be dangerously passed by a driver, seemingly as punishment, catch up with them at a stop light, and then have them chew me out for not going the speed limit, when I actually was going the limit or faster. It's not hard for a fit cyclist to go the limit on a 15 or 20 mph road, particularly downhill. The problem here is that many drivers think anyone not going 30+ mph on those roads is being a jerk, and unfortunately some of those drivers believe dangerously passing slow vehicles is an acceptable response to their impatience.
But the reality is this: Going 30+ mph in a 15 mph zone is being a jerk!
>> ban cars
> unrealistic statements
You, sir, are funny.
Banning vehicles has been shown to greatly increase shopping revenue and improve the healthiness of the area, so if a few businesses suffer, poor them... I'll not shed a tear for the strip malls.
They only want change that doesn't involve money, effort or change, or what?
I’m going to sorely disappoint you there…
However, if you want to talk about the United States, I would agree with you that it’s going to be expensive to shift the suburban sprawl away from personal vehicles. As much as that particular urbanisation failure is seen as typically American, it’s far from the exclusive option there. You will be surprised to learn that there are dozens of millions of Americans living in cities dense enough to justify not using cars as the default transport mode (“banning” isn’t a very accurate description of what that city did).
https://www.worldatlas.com/articles/the-most-crowded-city-in...
Electric scooters or bikes, typically the dockless kind, combined with existing (but re-inforced) public transport sounds doable, especially if you invest the same order of magnitude as local authorities spend on highways. That would require little investment (most of it would be private and from people keen on giving away billions).
it sounds like you assume that (an unnamed) we *has* to be in the United States.
I wouldn't say this to anyone on hn who uses "we" without a qualifier because I assume as a matter of course that everyone on this website is aware that there are non American users. The pedantry here isn't appreciated. I’m going to sorely disappoint you there…
You will be surprisedProblems with bicycle roads:
90% of traffic is much slower than me, which I do 20 km/h in cities (nothing special with some training)
They go up and down sidewalks and turn before intersections. This slows down everybody willing to go faster than 10 km/h
They are bumpier than roads
They are on the side of the road and more dangerous at any intersection, where they are close or before the stop line for cars coming from the side. Furthermore there is less space to look for incoming traffic. Being on the car's road is safer. I like bicycle roads when they are far away from car's roads, for example along rivers. Small low traffic roads are good enough.
On the other side, roundabouts and every other modern road layout that force cars and bikes to get close is dangerous for bikes. I feel safe to say that roads became less dangerous for cars in the last 20 years and more dangerous for bicycles.
I'd like to have the roads of the 70s: long straights, no speed bumps, no roundabouts (cyclists also don't like stop and go),
I'm joking just as much as the people saying that bikes don't belong on roads are.
Cars can be a great tool for humans to use and they are not yet running around without a human inside.
I think the most intrusive part of cars are when they are moving. That is when they are dangerous, mess with peds and bikers, and occupying roads that break up community space. Look at how much parking structures are as a % of the total building space in downtown SF or Manhattan. Not nothing, but pretty small. Maybe 5%. Probably less.
If you are interested in a ROI based perspective on town planning, https://www.strongtowns.org/ makes a compelling case that sprawl is not economically sustainable.
DeVos is married to Dick DeVos, the former CEO of the multi-level marketing company Amway, and is the daughter-in-law of Amway's billionaire co-founder, Richard DeVos. Her brother, Erik Prince, a former U.S. Navy SEAL officer, is the founder of Blackwater USA.
What surprises me here is the fact that Amway has done so well in China yet is connected to Blackwater.
For me, high speed and low speed are both OK. I take longer rides that get me out onto the trunk roads where people drive 55+, but they usually give me plenty of room. What I'm not OK with is congested roads where drivers are not controlling their cars -- if someone stops suddenly, there will be a crash.
The city is gradually adding bike lanes on the more congested main roads when there isn't a good alternative. They're also designating some side roads as "bike boulevards" with "traffic calming" features that effectively discourage cars.
A way of planning for bike paths is if bike traffic gets heavy enough on a road, then set aside a portion of that road for bikes and leave the rest for cars.
Which fits well with dynamic speed limits cropping up in places that get regular bad weather
Whether or not speed variances between vehicles increase accidents doesn't seem to be clear. With a quick search I found this(1) that indicates that speed variances don't play a role in causing accidents. I also found this (2), which says "that the greater the difference between a driver’s speed and the average speed of traffic—both above and below that average speed—the greater the likelihood of involvement in a crash". And I found this (3) which basically says the speed limit should be set at the 85th percentile of what everyone is driving. Kind of like how you should build sidewalks where people walk ("Don’t make any walkways this year. At the end of the year, look at where the grass is worn away. That shows where the students are walking. Then just pave those paths"), set the speed limit at the speed most people drive.
Everywhere in the US I've lived, the max speed limit laws were written like "whatever speed is safe for current conditions up to a maximum of XX Mph" So you can get a speeding ticket for going slower than the posted limit if conditions are bad. I've actually been pulled over going well under the posted max speed limit during a hard snow storm.
(1) https://www.caee.utexas.edu/prof/kockelman/public_html/TRB04... (2) https://en.wikipedia.org/wiki/Solomon_curve (3) http://onlinemanuals.txdot.gov/txdotmanuals/szn/determining_...
There are exceptions, especially in the US West, where interstates may be the only path for miles and miles through some mountain ranges. Of course, they mostly have wide shoulders where people ride.
There is the source for California -- I see it gives exemptions for safety and law (I assume for road works, etc) but generally speed limits are objective based on conditions. It doesn't mean you can drive slow and impede other traffic traveling around you though, which is why there are laws for it. I don't see it enforced as much in San Diego, but when I lived in the Lake Arrowhead area it was enforced quite often on the highway up and down the mountain.
Quick edit -- that law is for highways, I haven't checked whether this also applies for other types of roads.
Note that “highway” in California law has a very broad definition; see https://leginfo.legislature.ca.gov/faces/codes_displaySectio....
“Highway” is a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. Highway includes street.