* The emphasis of this web page has been safety, economy, and rationality. Only touched upon has been the contribution of speed to climate change. Vehicles built for low speeds (such as those considered to be "NEVs") have a much lower "carbon footprint", even with an internal combustion engine. As electric vehicles, the battery pack might be 1/4th the weight and cost --and: 1/4th the disposal burden. (At this writing, lithium-ion batteries are only 5% recyclable, whereas traditional automitive lead-acid 12 volt batteries are 95 to 99% recyclable.^)
That said, I must witness to the real problem: it's
our growth mentality. The Earth is already struggling
to support at least 3 times too many people.
* Our system of roads, speeds, the mutual infringement of cars, pedestrians, trucks, pedal power, locomotives --separated by painted white lines --is nuts.
For those who don't closely follow the development of
performance cars, Tesla's second generation Roadster was originally scheduled
for production in 2020, the first thousand or so being earmarked for those
who've paid in advance, then to those who've invested a $50,000 down payment.
(That first generation Roadster, which went into orbit around the Sun,
was Elon Musk's personal 2008 model --built on a Lotus chassis.)
* I've been 23 years out-of-date for not mentioning the vehicle classification: "neighborhood electric vehicles". NEVs are a ready made answer to my laments and suggestions here. Being absent many of the crash-worthy requirements of standard cars, regulations restrict them to 25mph (and they're usually legal to run along on parkways signed for 35mph) --just fine. These vehicles might seat up to 4 people, can be fully enclosed, and often feature basics like wipers and defrosters. Their previous limited range (maybe 30 miles with lead-acid batteries) can now be augmented with lithium-ion batteries.
* For a stouter machine, check out the $4000 Chinese "Wuling Hongguang Mini" EV, which can manage 60mph. (It's not been imported yet.)
* I'm expecting that the current run of $25,000 to $30,000+ EVs are going to get laid low when their 100,000 mile warranteed battery packs time out --or get damaged ahead of time in a not covered accident --as happened to a Tesla Model 3 owner. At this writing, all Chevy "Bolt" EVs have been recalled due to battery fires. The cost to GM has been estimated at $11,000 per vehicle to replace their battery packs, for a total bill of 1.8 billion. Be my guess that retail replacement out of warranty will cost a tad more.
* The aviation industry is toying with electric power planes, but for flying, they don't want lithium batteries even as cargo. NASA has a program and a dedicated budget to come up with another battery technology. If that's a success, perhaps the new batteries will power cars as well.
* Another big problem: lithium batteries are currently only about 5% recyclable, and that's to extract the cobalt (but: Tesla is developing a lithium battery that doesn't need cobalt). However, standard lead-acid car batteries are 95% to 99% recyclable. Were we to restructure our mobile lives to move (say) 30 miles per day (or less) at 30mph --how safe, quiet and efficient would be our private vehicles.
^ Unfortunately, lead-acid batteries
only last about 2000 cycles (with good maintenance). In heavy use, there's
another problem. The experience with warehouse forklift fleets has been
that their discharged lead-acid batteries not only require about 8 hours
to recharge, they then need an additional 8 hours to cool down before use.
The input-output energy efficiency must suffer.
In the news: Who knew!? Mixing people standing on little electric scooters with big city traffic is resulting in lotsa accidents. --Gosh-gee!
* Dale Maharidge wrote an excellent article for Harper's magazine concerning the nation's crumbling secondary roads and bridges. It's my expectation that overlaying our deteriorating transportation infrastructure with "self driving" cars will prove to be a Donnybrook. As of January, 2020, these vehicles don't see potholes.
* We keep seeing news reports about accidents as self-driving cars are being road tested, as well as Tesla's cars in "auto-pilot" mode. I await drawn out court battles over who's responsible, findings that the (deep pockets) manufacturers are at fault, bigga recalls, and finally: handing the reigns and the liability back to human driver/owners.
* As of 2018, an accumulation of accidents and deaths brought the road testing of self-driving cars to a halt in several states. It turned out that one of these vehicles ran into a concrete divider after audio and visual warnings failed to alert the human at the wheel (who was streaming a movie!) that things were getting out of control. (If I recall the news of the day: there was a suggestion that the highway's painted white lines were out of specification --and that the crash was followed by run-away shorting and flash ignition of the lithium batteries. The fire department had to stand by, hesitant to direct water onto the burning car's carcass until Tesla engineers could come and disable its electrical circuits. That strikes me as a jobs program for lawyers.)
I suggest that sensors and computers are simply not up to the wary alertness and psychology it takes to navigate a vehicle at speed, to deal with the mental states of others on the road, to anticipate, to creatively and even unconsciously avoid hazards. If the driver's attention isn't supposed to wander, then just what isthe point of a "self-driving" car?
* Aside from attending to the complexities of programming
a self-driving car, even the far simpler tasks of engineering things like
air-bags that don't kill us and steering wheels that don't come off has
proven to be a challenge for car makers. Ford had to recall 1.4 million
cars in 2018 because their steering wheels were coming loose --some of
them coming completely off --at speed. (Of course, when Ford starts fielding
fully self-driving cars, we won't need no stinkin' steering wheels, right?)
* Bullet trains: Considering our society's unwillingness to maintain bridges and roadbeds, plus recalling railway accidents in which engineers failed to slow down for curves, it's hard to imagine our (USA) culture operating European and Asian style "bullet" trains. So why not simply governor trains to run at modest speeds?
Since the kinetic energy of a collision is proportional to the square of the miles per hour, an accident at 30mph is inherently 4 times worse than one at 15mph. At 45mph, it's (3 squared =) 9 times worse.
* Should you be enamored of "extreme sports", the "need for speed", the thrill of risk taking --then this web page is probably not for you. It's a gentler crowd that I encourage to seek out and build alternative communities (new cities, "intentional", "gated"/CC&Rs) and lifestyles. I quite discourage vain attempts to impose such pastoral ideas upon thrill seeking mainstream Americans.
* “I know kind, well-bred, and considerate people who, as soon as they feel the steering wheel in their hands and the gas pedal under their foot, are seized by an automotive frenzy,” wrote Adolf Schmal, an Austrian writer, in his handbook for motorists, published in 1913. See more (and the story of "Mr. Toad") at:
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Let's start with some extremely "counter-culture" notions.
* Travel, change, "growth" and even "progress" -- are not inherently "good things". Those are hard arguments to make, since we live in a culture/society that's so desperately in need of fundamental changes and progress.
Glimmerings of such understanding are among us. Recall
the familiar: "happiness is in your own back yard", along with that old
fashioned admonition against "change for the sake of change". (Yes: we
all feel needs, both practical and recreational, to venture some distance
away from home. I'm talking matters of degree and range --of course.)
* Perhaps the first argument I hear against drastically reducing our speed limits is: "we don't have the highway capacity". However, being mindful of those public service announcements that we should count a second's worth of travel between vehicles (or a car length between for each 10mph --about the same), then --nominally-- a capacity of something like 86% as many cars per hour should pass a given point along a highway at (say) 30mph as at 60mph. (The math here is for 16 foot long cars.) More likely, and over time, vehicle miles (if not hours) would considerably diminish (due to closer destinations), such that highway capacity would actually increase.
* Dissent #2 (and maybe it's #1): "it would take twice as long to get there". However: that there "there" --the destination, is pretty arbitrary --is it not? So just why did you decide to build and drive to your cabin on "the lake" for the weekend --instead of somewhere further --say: nearer to Canada? Answer: you picked a nice destination that was do-able --at 60/whatever MPH. But then: why not 120mph? With more investment in highways, vehicles and fuel, is that so unreasonable? Would Canada then be reachable from your home? In 1939 it was expected that we'd be routinely driving at 100mph by the 1960s.
Obviously, if it had long been a "given" (and accepted)
that the highway speed limit is (say) 35mph^, then you'd
have simply built a cabin on a lake that was nearer to home --and maybe
have driven to work for a company at about half the distance you now commute.
There's a bonus: you'd stand a much better chance of driving to those destinations
living to a ripe old age --with lower life and car insurance premiums along
the way. (I'm originally from Minnesota, which has lakes, lakes, lakes,
everywhere to choose from --and hoards of mosquitos.)
The Cars of the Future
Those in attendance at the Panama-California International Exposition of 1915-16 experienced the tranquility of Clyde Osborn's "Electriquettes":
* ProPublica’s Lena Groeger used data from the AAA Safety Foundation to chart similar statistics and came to a similar conclusion.
* To be clear: I'm seriously advocating for greatly
reduced speed limits --which only seems to be an extreme position
--because our society is so nuts about speed and risk taking.
* There are, of course, natural/physical speed limits --like the sound barrier. We can run and easily bicycle at 15mph. Maybe we can sprint close to 20mph. If this was the limit for most urban driving, bicycles could keep up, while pedestrians, stray children and pets would stand a better chance of survival.
Below 50mph, the profile and streamlining of a vehicle is much less important, so boxy, slower vehicles could be designed for comfort (shoulder/hip room, luggage capacity, rain and snow shedding visors over the windows), as well as having better engine accessibility --partly due to needing a much smaller engine/motor. (Perhaps you could pull an engine block by hand.)
* At "parkway speed" (35mph^ and below), air flow over a car ceases to be so turbulent. Open your windows. Listen to nature's birds and crickets. (Hey: try that sometime. It's very pleasant on a warm summer evening.)
At 35mph and below, wild creatures stand a fair chance of getting out of the way, so road kill goes way down --and ain't that nice.
* Not only could engines be significantly smaller at modest speeds, the whole drive train, wheels, tires, and chassis weight gets sharply reduced, so cars become more affordable to build and to purchase --as well as to drive.
^** Surprise(!) --it's already been
done! In May of 1942 a national speed limit of 35
MPH was decreed in support of the war effort to conserve tire rubber and
gasoline. The State of Utah kept track of the results: auto accidents decreased
by 35%, traffic deaths were cut in half, and this was despite a 5% increase
of vehicles on their roads and highways over the same period of time (1941
** Of course: fuel consumption goes down with speed, and the more so if cars are designed for a low speed range, since MPG goes up with reduced vehicle weight (a factor which dominates at speeds below 50 MPH).
More "car talk" *here*.
* Portraits of American Presidents -
copyright NBC News/Questar - 1992
Another safety issue: