Submitted by brad on Sun, 2005-01-02 12:08.
Just back from the nightmare of holiday travel, which started at 5:30am on Christmas morning and a security line snaking all the way to baggage claim. Coming back 6 days later, I braved the door to door shuttles from the airport.
I generally regret the decision to use these shuttles, which seem to average about 1 hour 30 minutes for the 35 minute drive to my home from SFO. This time, they had 10 people waiting for my town (which would normally be a dream as you would not spend all that time wanding around closer towns dropping off earlier folks) but in fact after we saw others had waited an hour for any shuttle to show up, we went to the caltrain, which takes an hour for the trip but is predictable.
The curse of these shuttles is how unpredictable they are. For some they are a quick trip but often they will drive you many times around the airport waiting for passengers, and then on an unpredictable drive. The public hates unpredictability even more than slowness, and would pay for predictability, I think.
So can computers, and some common sense, fix this? Surely you could make reservations which tie your flight number into the database so the shuttle company sees your plane arrive and knows pretty accurately when you will make the curb. (You can confirm that with a cell phone speed dial if your cell number is registered.) If lots of people did this, you could know how quickly a large enough group of people who live close together would be ready to leave. read more »
Submitted by brad on Sat, 2004-10-16 13:36.
I've written about a few plans to get rid of the headache (and travel killer) that airport security has become. One of the great curses is that because you can't predict how long security might take, most people end up arriving way, way ahead of their flight in case the line is long, but often they clear it in just a few minutes. (Ditto the immigration/customs line at Canadian airports going to the USA.)
So here's another idea -- appointments for going through airport security. When you use web check-in (which many airlines now support) or even at the gate, you would be allocated an appointment in the latest available slot some period (say 20 minutes) before boarding ends for your flight. Appointments would be spaced at slightly more than the average time to clear a passenger through security.
This would work because there would be two lines at the security gate. One for people with appointments, one for those without (or who missed their appointment.) You could only enter the appointment waiting zone in the 10 minutes prior to your appointment, and presuming 30 seconds per party, that would mean it would hold about 20 people. An agent would check your bar-coded appointment slot in letting you in.
When your time comes (or at any free time) you would be taken through at the head of the security line. If somebody needs extra security (random search, suspect item) that of course delays the station they are going through, but the other stations are free to take the person with the next appointment. Only if all stations got bogged down with problem cases would people in the appointment line not go through at close to their exact appointment time. read more »
Submitted by brad on Thu, 2004-09-30 05:36.
We've gotten used to a painful, privacy invading security process when we fly. But why should we do this for shot-hop, small aircraft. Those ones on the 20 seat Canadair Business Jets and similar. Secure the cockpit with a sealed door and arm the pilot so that terrorists can't take control of the plane. Put in sealed transponders so ATC knows if the plane goes astray. Give the pilot a "disable" button that limits what can be done with the plane in the event of attempted hijack.
Other than that, give it no more security than a bus or train. Just show your ticket, or pay cash, and walk on, possibly going through no more than the metal detectors used at things like baseball games and museums. Possibly not even that.
Yes, evil people could smuggle a gun, and suicide terrorists could put a bomb in their luggage. And kill 15 people. Which would be horrible, but frankly there are a lot more dangerous targets out there for the terrorist willing to kill himself, where a lot more damage can be done, and a lot more people killed. Hell, there are more tempting targets where you don't have to kill yourself. It makes little sense to waste resources blowing up tiny planes.
Which means we should not go nuts securing them. This already takes place at small airports and on general aviation. I've seen post-911 stories of people just walking onto small corporate jets with no ID or search, as well as other private planes and charters. Combine that with other ideas on efficient plane operation and you might just have a very popular airline for flights under 500 miles.
Submitted by brad on Tue, 2004-09-21 09:30.
RVs come in all sizes, from 40’ bus to towable pop-up. But what about inflatable in a trunk in the back of a minivan?
Setting up and tearing down tented campsites is a pain, and there are instant-setup tents and even some inflatable tents. But what about a super-duper inflatable tent, designed for car-camping.
In the cabin-tent structure with high-pressure frame would also be (at lower pressure) one or more built in airbeds (that you leave the bedding on), an inflatable couch or chairs, wiring for LED or fluorescent lights in the roof with switches, 12v power jacks etc. On the outside might be an inflatable sink with 12v pump and drain hose and outside inflatable chairs. There would be an “air pressure bus” with quick-connects and turnable valves for each component. Inflation would be pushbutton, deflation might require turning values as you deflate components but still simple. Once deflated, the whole thing — components, bedding and all — would roll up and fit into a trunk or large suitcase that would fit in the back of a minivan or SUV. It would not be designed to be small or light like most tents.
It could also be designed to sit in a hitch holder, along with a bike rack. Add a portable toilet, camp stove, ice chest and folding tables (inflatables are not solid enough.) Ideally wire a special jack into the van battery, and replace the van battery with a marine battery (deep cycle and starting).
The goal: open the crate, open the valves and start the compressor. In a few minutes, a living space is erect. If needed, put in weights or stake it down. In the morning, start the vacuum on the internal components, then turn the valves to drain the support members, roll it up, bedding and all, and go.
I believe this could easily sell for $1,000 or more. It would be almost as easy as a pop-up camper, but best of all you would not be towing something. It would pay for itself for families on a cross country road trip pretty quickly. The key is to not think of it as a tent but as an RV.
Submitted by brad on Thu, 2004-09-09 13:49.
First entry in a while due to trip to Burning Man ... more on that later. This time I returned to RV rental, after 2 years in a tent, so I thought I would make some notes on that.
It amazes me how little attention mainstream RVs pay to what is called "dry camping" -- away from electrical and water connections. Yes, they have batteries, tanks and generators, but it's very rare to see an RV use fluorescent lights, for example, even though they are available in 12v form and take 15% or less of the power of the incandescent lights they currently use. If running off batteries this is a no-brainer.
Inverters are also cheap these days, and more efficient. Some draw almost nothing now when not loaded, so a built in inverter to run 110v gear efficiently off the batteries also makes sense. As noted, a 1kw inverter is today quite cheap, and could even run the microwave, though you would not want to do that much. An automatic system to run mostly from battery but start the generator on-demand during daytime hours if it gets low could make sense.
Solar kits are sold for RVs but are rare and rarely standard. It also amazes me that they don't come standard with built in liquid soap dispensers, paper towel racks and other things to keep the commonly used stuff secure.
We have found it handy to use the rubbermaid (or similar) plastic storage boxes to put multiple boxes in the overhead storage. Pull out drawers would also make sense here. Each time you move you have to "rig for silent running" and some RVs we have rented come with metal blinds that will clank and clank unless you stuff towels into them.
The latest RVs only fill their water tank from a standard pressurized hose. Turns out that's a curse at burning man because the water truck is not allowed to have such a fixture due to the risk of backflow from an unknown tank. Doubt we will see a fix for that as it is an unusual problem.
RVs come with very low precision monitor guages, from before the digital age. They show you that your tanks are at 0, 1/3, 2/3 and full, for example, and likewise for your battery. On the fresh water tank they could measure flow through the water pump to get a much more accurate figure, and if they detected if the toilet was the use, they could also know how much was likely in the gray tanks. The black tank (sewage) sensors have been broken on every RV I have ever encountered, they gum up with toilet paper. You would think after decades of having unusable sensors they would devise some other method, such as a pressure sensor under a heavy membrane, or bouncing sound waves or light off the top of the sewage. You can of course shine a flashlight down the toilet, but that's harder to judge than you might think and of course not very pleasant.
Measuring the battery accurately is of course a much easier task, and I use my voltmeter to do it. You could also do a full coulomb counter like laptops do to really accurately measure charge level and the condition of the battery to find out when it's time to replace. None of this stuff is expensive in the modern digital world, but RV designers still think in 80s technology, I surmise.
It's also common to find just one 12v jack in an RV and at most 2, usually where TVs will go. They assume RV owners will not be using much 12v equipment even though it's quite common nowadays.
In order to protect the batteries when camping off-grid, there should be timers or automatic shut-offs of lights if voltage goes below certain limits. Many an RV camper has left a light on and found their battery drained. If they are there and the timer trips, they can just manually turn it on again.
Submitted by brad on Mon, 2004-07-26 04:27.
I like to wear suspsenders sometimes, but they have become an added burden when you travel or enter certain buildings because they have metal. Not that there are any accessory-vendors reading my blog, but sadly it's time for somebody to sell belts, suspenders and shoes for people who need them without metal.
Submitted by brad on Thu, 2004-07-22 13:19.
Ok, I'll admit this is a crazy idea, not likely to ever see the light of day, but it's worth throwing out as an exercise. It is often said we should keep the speed limit low to encourage good fuel economy.
What if there were no speed limit, but instead a "fuel limit." For example, 2 gallons of gas per hour.
If you are driving a 30mpg Honda Accord, you
could thus go 60 miles an hour, as that would burn 2 gallons in one
hour. If you had a 50mpg Toyata Prius, you could go 100 miles/hour
because that would also burn 2 gallons/hour. ZEV? As fast as you
want, just like Germany.
Bad news in that 20mpg Ford Explorer 4WD. 40 miles/hour maximum speed
A Hummer? Forget it, you'll be below the minimum speed. No highway
driving for you. Enjoy the side roads.
This is more an academic exercise, as the voters would reject it (they
love their big cars) and we actually don't want anybody going 40mph on
I-280. But in fact, if the limit is set to encourage good fuel economy,
this would be the way to do it. A simpler, but also unpopular way
would be to tax gas to $5/gallon. It's fair, because when you crud up
my air by burning your gas, you owe me something, and the least you could
do is reduce my taxes.
Now of course if you really did something like this it would be more complex. Probably not linear, nobody below 50mph. If 50mph is not enough, an 55mph exception for commercial trucks, busses and other non-passenger or many-passenger vehicles. Being a carpool would also alter your speed. Of course it would be a fair bit harder for cops to enforce, but actually not that hard. Cops are trained to identify cars very quickly, and of course would have a quick database. But frankly, you can tell a guzzler when you see one, most of the time.
Submitted by brad on Wed, 2004-06-02 15:58.
I'm not the only one to have thought of this, but as yet no real work has been done. How about a hybrid car powered with a Stirling Engine? (Not spelled Sterling, btw.)
The Stirling is more efficient than the internal combustion or diesel engine, and it's also a lot quieter. Sounds great, but it's not good for cars because it can't rev up quickly and it takes about 5 minutes to get the engine hot enough to run well. We want our cars to start the minute we put the key in.
A hybrid design (with enough batteries for 10-20 miles) solves this. You can get all the acceleration you need from the electric motors, and you can start driving right away, while heating up the Stirling "boiler". Then it kicks in to provide the power to run the car for the long haul. If you know the trip is short, no need to fire up the Stirling until the battery gets low.
The Stirling can burn anything. Gasoline, kerosene, diesel, vegetable oil, hydrogen, even wood! Yes, you could, in theory, be stuck by the side of the road out of gas, then go out with an axe to chop trees and refuel your car.
Well, almost. You want high-temperature burning for the best efficiency, and this would pollute and probably dirty your nice clean boiler. Right now the engines are expensive to machine but I suspect that could change.
Submitted by brad on Thu, 2004-05-27 16:00.
Commodities traders buy gasoline futures all the time. Could they work at the gas pump? Imagine a big gas chain willing to sell you future gas today. You would buy a coupon, good for 15 galons of gas in August, the month you plan a big family trip in the minivan. You're afraid the high prices in the future might hurt the trip, you can be protected against them. The futures might even cost less than gas at the pump today due to widespread belief that supplies will open up. In times of heavy fear they would cost less. You could even buy some of your gas years ahead (from a big chain you know will be around) and then sell them on eBay if you don't need them. Would you need a commodities licence to do so?
Would anybody buy them?
(Thanks to Kathryn for this idea.)
Submitted by brad on Wed, 2004-05-12 18:25.
I've often wondered why, when you have an electric train line that has a terminus as the main destination, you can't give everybody an express train.
To do this, imagine for the commute home, a 5 car train starts downtown. It leaves and expresses a few stops down the line. (A local car leaves after to handle the stops close to downtown.) When it gets to point one, with sufficient warnings and many safeguards, it decouples, and the rear car brakes to stop at the first of its stations.
Passengers get off (and on as well, see below) and the car, which has its own power coupler, takes off to drop folks off at the next few stations. The main train releases another car after that which handles the next few stations.
This has been thought of before, but next the hard part, something needing more modern technology. After the drop-off car has completed its local run, it would attempt to rejoin the next express train, allowing local passengers who got on it to get on an express, then move to the car that will eventually decouple to go to their stop. With the right timing this could go on all day.
Not that this is easy... read more »
Submitted by brad on Fri, 2004-04-16 06:54.
I wrote recently on better boarding strategies. Let me talk about what I really want in efficiency from an airline. Well, it seems we are stymied on getting what we really want, something as easy as a train, due to 9/11 oversecurity, but let's see what we can do.
This airline, at least here in California airports, doesn't use a giant air terminal. Instead, the airport is just the airstrips with a big parking lot running all along the side. (Could still do that at many of today's airports backsides.)
The trip begins as I drive off to the airport. I punch the airline's number on my cell phone. They take the caller-id and check me in, then text message me an electronic boarding pass. (I can also do this from a more advanced device or web browser of course.)
I drive into the parking lot and park right at the "gate." I mean 100 feet from the waiting plane. I grab my bag, hand my keys to the parking valet. I flash my cell phone's screen with the text message in front of their scanner which confirms my boarding pass. I go through the security scan, and into the small structure to sit in the chair with my boarding number on it. I access the free wi-fi.
Not long after, boarding is called, and we stand up from the chairs and walk up the stairs to the plane. (No jetways, at least here in California, though you could have them.) The front and back of the plane are used, everybody gets on in just a few minutes.
We land at a similar airport. When I confirmed boarding, the rental car company (or taxi or shuttle) was informed. As I get off the plane, waiting in the parking zone is my rental car. The scanner in the car reads the text message with my rental code and it activates. I drive away. Or perhaps I take a taxi. Perhaps I indicated that I would be happy to share a cab to the convention center so the cab has a list of 2 people to wait for.
On the way back, again I pull up right at the small valet zone at the airplane's gate. The rental company takes the car and I walk on the plane. My boarding is sent to the parking valets, and when my plane arrives, my car is ready in the valet zone. Off I go.
Of course there are flaws... read more »
Submitted by brad on Tue, 2004-04-13 13:39.
In thinking about plane loading again, where I suggested they paint the rows in reverse order on the carpet where people line up to board, it occurs to me that in reverse order by row may not be the most efficient boarding order.
When each person gets to their seat, they tend to stop there to put away luggage, blocking other people in their row or further back. If they block the people in their row they make them block the people in the next row and so on, which is not efficient.
The most efficient order might be to do all the windows first (starting with the rear), then the middles and then the aisles. (Modify as appopriate for widebody aircraft.)
This way everybody does the luggage loading in parallel, as nobody is stopping them, then another column moves in. The first-row window passengers might block the last row middles for a short time but it would be minimal.
However... read more »
Submitted by brad on Fri, 2004-04-09 08:03.
Carpool lanes exist to reward those who work to reduce congestion and pollution with a faster trip. I know that's good every time I look out my window and can't see the hills for the haze. Some areas allow zero-emission-vehicles (electric cars etc.) to also use carpool lanes with a solo driver, reducing pollution if not congestion.
Proposals have been made to also allow solo drivers of hybrid cars into the lanes, as well as solo drivers who simply pay a fat fee for a permit. Let me propose an interesting variant of these payment ideas.
Let people pay for part of their capool permit with used commuter train tickets. A person who rides the commuter train takes a car off the road just as much as a person who carpools. If used train tickets (for longer trips) could be credit for a carpool permit, this would encourage people to take the train "most days" but still use their car when it's called for. You could allow only redemption of your own ticket (such as a monthly pass) or any ticket, in which case a market would develop with people paying transit riders for their ticket stubs. This would effectively mean the solo drivers would subsidize the transit riders, even making their trips free. Which is part of what we want to have happen here. read more »
Submitted by brad on Sun, 2004-04-04 04:52.
Pardon the local entry boring to those outside this valley.
San Jose is seeking something "distinctive" for the airport remodel. Let me suggest something I have not seen anywhere else, something that would say something about the area.
San Jose has a bike trail that, except for a short gap, runs along the Guadalupe River from the airport terminals to almost highway 280. The part along Airport Blvd is unpaved, the rest is paved and landscaped. Step one would be to complete this trail and pave the unpaved part. Until the gap can be filled in, create some clearly marked bike lanes. Also do a lane on San Carlos, Park or San Fernando to lead to the convention center and downtown hotels.
Next: Franchise or subsidize specialty one-way bike and electric scooter rentals at both ends. Have regular bikes with towable trailers or trikes, and have electric powered bikes and scooters (again with luggage capacity) for those unwilling to get in some exercise. Make the rental cheap, like a few dollars each way.
This is worth doing just for the polution it would avoid with all those folks taking cabs. (Let's face it, people are not using the shuttle to the light rail much.) It would actually be faster in may cases than either of those methods, especially during rush hour. It would expose the visitor to something other than the highway trip. With San Jose's weather, it could operate well most of the year. read more »
Submitted by brad on Wed, 2004-03-24 12:54.
Many know that Southwest Airlines has some of the best on-time records and plane turnaround times. Some of this comes from the fact that without reserved seating, people can board the planes more quickly.
It seems to me it should be possible to board planes quickly even with reserved seating. Here's how...
For a simple system, draw on the carpet a diagram of the largest plane that uses the gate. Except put the rear of the plane up by the door, with numbers counting down to the front. Have a 2nd area for 1st class if you need to keep them boardig at their convenience. This can be just a line with row numbers, and a marker that puts window seats near the line, aisles further away.
When boarding is called, passengers stand in the line for their row, and sorted internally as noted, so window seats go first. Then just empty the line into the plane. Being out of place in the line will be very obvious on the plane. If people line up over their row number, you'll never wait while people load their stuff to get to your row, unless you're late for the boarding call -- which few people are today due to crazy security rules.
You hae to decide if premium frequent flyers and "people needing extra time" should go first or not as they do now. My view is that the pre-boarding needs are minimal, and that even a slow child or senior will be better placed with their row than pre-boarding, but pre-board can still be allowed. I also think the frequent flyers would rather have a plane that boards and leaves quickly than get on first, except for one issue -- overhead storage. However, even if you let us get on first, doing this for the rest of the passengers still will streamline things.
You could also just print a series of numbers on the carpet. People would be given a card with their number and expected to stand by it, showing the card. The cards can have a clear colour code making it impossible to hide which group of 12 you are in. In this case, you can assign low numbers to 1st class, pre-boarders and frequent flyers, and just sequence up by seat otherwise. Again, zip on the plane almost as fast as leaving it. That means boarding closer to take-off, and faster turnaround, which is good for everybody.
Submitted by brad on Fri, 2004-02-06 07:47.
Reading this NYT article about radar to cover car blind spots, which describes a system that will trigger lights in the rearview-mirror when cars are in the blind-spot, reminded me of an old idea I had some time ago I called “Eyes in the back of your head.”
The idea would be to wear a special collar while driving. This collar would contain small electrodes that could lightly stimulate the skin on the back of the neck. Perhaps just one row, but ideally a small 2-D image should be possible.
This would be connected to a camera, radar or sonar system pointing back from the vehicle. It would map where other vehicles are, and turn that into an image on the back of the neck.
Thus, as a car came up behind you and passed you, it would feel like something brushing the back of your neck on one side.
I was inspired to this by reading about a system for the blind that mapped a video camera image onto a 2000 pixel electrode map on the stomach. It was found that over time, the nerves would retrain and a sort of limited vision could develop. Might this have application in driving, or perhaps combat? read more »
Submitted by brad on Thu, 2004-02-05 05:59.
I hinted last week I would write about a peril from and to automatic cars, or actually any drive-by-wire cars.
That peril is they become highly useful terrorist weapons. Today terrorists get kamikazis to drive ordinary cars to attack targets and checkpoints. It will be easy to modify a drive-by-wire car (including the self-parking cars already on the market) to be controlled by the cheap remote controls found on toy cars and planes today, and easy to mount a wireless camera (X10, the terrorist's tool!) as well.
A remote control car can be a weapon on its own, just to smash into things, but more nastily it can be loaded with explosives or poison or other nasty things. If drive-by-wire cars become commonplace (and they will) this will be possible.
I present a problem without good solution, and I also fear some of the solutions even more than the problem. For example, one of the big advantages of the automatic self-parking car which I described earlier is the car that drops you off and picks you up right at the door of where you're going. However, just as false anti-terrorist security has made it almost impossible to park or pick people up at some airports, they will move to ban all vechicles from going just where we want them to go.
They may also start demanding government overrides for the automatic cars, so police can take control of our vehicles on demand, bypassing even manual control. They will try to tightly regulate the technology (stifling it) and only allow blessed companies to work on it. As I said, a problem without obvious solution.
Submitted by brad on Tue, 2004-01-27 06:33.
I seem to be thinking a lot about the future of automatic cars these days. Already we're seeing cars in Japan that can park themselves in a tight parallel parking spot, and this leads me to think that the next market for the technology, after the basic automatic highway, won't be the city street but the parking lot.
Parking lots eat a lot of space, and where the land is expensive, automatic cars will offer automatic valet parking. Drive to the mall/office/whatever, enter the automatic lane and be whisked to the door. Get out and your car will run off and park itself efficiently, possibly some distance from the building. (In the future with more fully automatic cars trusted on city streets, it might rent itself out as an autotaxi.)
When ready to leave, use your cell phone to tell the car to come to the nearest door, and it will be waiting there. Obviously that's a great convenience, but the real reason this will happen is it saves a bundle for the building/parking lot, because they can park more cars in the same space, or even park cars offsite. Whatever cost is needed to bury guide-wires or other transponders is easily justified by the efficiency gain, especially in downtown multi-story lots, many of which already justify the cost of humans to do the work.
Later, however, I will reveal the big catch that may keep us from this.
Submitted by brad on Wed, 2004-01-21 14:25.
Another transportion item, because last night the train I was on hit a car stalled on the tracks (the occupant is OK, though was hit by the car when the train bashed it.)
Since trains do hit things, why aren't solutions to this more common in our data network world? A laser detector over the grade crossings would be simple enough.
At dinner, my friend Kurth Reynolds made a suggestion that I have improved. How about a small robot, equipped with camera and other sensors, which travels far enough in front of the train that if it sees a problem on the track, can send a signal back to the train in time to stop it. Trains take a while to stop, which is one of the reasons they can't do anything when they see a car or person ahead on the tracks.
You can't be too far ahead or you enter the "space" of the earlier train on the track, though during any tight conflicts you can of course give up this "foresight" and bear through (or slow down.)
If you have a human driving the train, you can show them video of what's ahead of the robot and give them time for a decision. Some decisions (Robot hits something or derails) would be automatic. Of course the robot might hit the car stalled on the tracks (though it can stop much, much faster than a train) but do far less damage.
The robot would be tall enough to go over the suicides who are "sleeping" on the track, but light enough so a car hit by it would survive.
Simpler for shorter runs like commuter trains would just be cameras along the track beaming to the oncoming trains. The engineer could be seeing a mile ahead at all times. Hey, if x10 can sell 2 broadcasting video cameras for $80 (WARNING: Don't buy from their web site, you will be spammed to death) I bet this can be made affordable.
This is important because some people don't think we should have rail with grade crossings. Without grade crossings, rail becomes vastly more expensive.
Some updates five years later: Some have worried the robot could hit workers or cars. Today, we are more comfortable we can build robots which would use LIDAR and never hit anything that wasn't running onto the track. The robots would also be light and perhaps have airbags to soften the blow against something rushing onto the track. When coming to a grade crossing, the robot would actually stop at the crossing and wait for the guard to come down (for the train, if the path is clear) and continue to monitor the crossing and report if something stops in it. Then it would speed up again and start going down the track to assure it is far enough ahead of the train.
Submitted by brad on Wed, 2004-01-21 05:38.
I'll be writing more in the future on ideas for auto-drive cars (both plus and minus) but let me start by asking the question of why the oil companies haven't jumped up to foot the bill for the development of automatic cars and highways?
It seems a big win for them. Given the availability of a car that would drive itself on the freeway and perhaps a few major roads, people would be much more willing to tolerate longer commutes, and that seems a win if you sell gasoline. A multi-billion dollar win.
Not completely -- the automatic cars will be more fuel efficient (simply driving at constant speed is more fuel efficient, but they will also be more likely to be hybrid designs.) But that's coming anyway. Given the ability to read, work or sleep during the commute would easily make people willing to commute for longer. In fact, for those who can easily sleep, they might welcome a longer commute to get the chance to have a decent sleep period. (Though there are those annoying people who are asleep before the plane starts its taxi. I hate them.)
We're also talking about a car where, while in it, you can have a decent speed internet connection and phone. The commute time effectively could become fully effective work time. Or TV watching time, or reading time.
Of course, in theory an automatic car in special lanes would also not get subject to traffic jams, so a longer commute would take the same time, and a longer commute sells more gas -- though admittedly traffic congestion also sells more gas.
But once again, the upside for oil companies is huge, and it's also high for the automakers, and the highway planners. It's mainly not good for public transit, since it takes away one of its advantages. We already know the basics of how to build an automatic car on an automatic highway. One of the big remaining barriers is money, and this could be the source.
I've added some extra notes below... read more »