Archive for the 'Engineering' Category

Better ANWR Than Deepwater

Economics, Engineering, Environment No Comments »

How much better off would we be if we were drilling in ANWR or similar areas, rather than in deepwater?

We don’t yet know how bad the Deepwater Horizon spill will end up being. Let’s go super-worst case, and say that it reaches the level of the worst-ever oil spill: the 1991 deliberate spill in the Persian Gulf. The high end estimate of that spill is 520 million gallons. Let’s say it’s twice that bad – 1000 million gallons, a nice round billion. Worst. spill. ever.

We know what that looks like in water. It’s bad. How does it look on land?

A gallon is 0.13 cubic feet. (I know, it looks like more than that when you hold a gallon jug of milk, but a cubic foot is actually a fairly hefty volume of space.)

Thus, a billion gallons is 130 million cubic feet. Holy cow – we’d flood Alaska!

Or would we? The nice thing about an oil disaster on land is that it is relatively easy to throw up a berm to stop the spill from spreading. (In fact it’s so much easier to stop a spill on land that there would never be a billion gallons spilled – there wouldn’t even be a million gallons spilled. Check that list – of the top 12 spills, only one was on land, and that one happened when just such a berm collapsed after eight months of the spill being neglected. But let’s assume for the moment that we’re going to have to contain the entire billion gallons.)

Berms vary in height, but let’s not wait for the Corps of Engineers to show up. We want to protect the Alaskan wilderness, after all, before the tide of black gold drowns Governor Palin and Mr. McGinnis and all the little Alaskan bunny rabbits. Let’s limit ourselves to a berm 10 feet high. That’s something that yahoos in pickup trucks can manage, let alone serious civil engineers. How big a circular berm do we need to contain our spill?

At a height of ten feet, to encompass 130 million square feet, we need a radius of 2034 feet. Now, that’s not a tiny berm. Our rednecks in pickup trucks are going to need some friends. (Of course, they have months to build it, given the spill RATE is “only” a few hundred thousand gallons a day at most.) It’s a circle about 4/5 of a mile across. Not trivial, by any means – not a weekend project. Still, even if throwing up the berm costs $1000 a linear foot (and it wouldn’t, not nearly), we’re looking at $12,779,000 for the whole project – chump change. (And hell, the billion gallons of oil in the berm is worth about $2.4 billion on the open market, so you might even make a little profit on the deal.)

How much Alaska would be wiped out? Less than a single square mile.

THAT is why we should be drilling in Alaska (and Canada and a few other places), rather than out in deepwater.

A Free Market Idea To Make Mass Transit More Market-Efficient

Economics, Engineering, The Human Future 2 Comments »

Imagine a network of rail/bus/street/streetcar/parking nexi, distributed over a metro or semi-metro area.

Each node in the network is connected to at least one other node, so that the network is completely routable; there might not be direct connections from every node to every other node, but there is at least one indirect path from each node to every other node.

To access the system, individual travelers (and possibly cargo shipments with handlers) access a node by whatever means they wish – parking their car there (for a fee), and registering at a computer kiosk similar to the ticket sales machines and booths common to current conventional mass transit systems. Each traveler indicates (on a computerized system) their intended destination, and their bid for the trip – i.e., how much they will pay for the trip. They could also signal mode preferences (I’d rather take a cab over the river than the train) or book future travel (I know I will want to get on the train back home every day around 5:15.) The transit authority would set the minimum prices and maximum prices, or might choose to allow free bidding. Passengers could also access the system from home or public computers with Internet access.

The owners and operators of the conveyances on the network – whether trains, buses, cars, streetcars, hovercraft, or what have you – act as independent contractors on the network. The transit authority will no doubt have a registration, screening, and inspection role to play in the supply- side access to the market. Each contractor will monitor, in real time, the expressed demand within the network and route their capacity accordingly; the real-time monitoring will permit conveyances to signal acceptance of conveyance terms to groups of people at a time and “snap up” those customers – first come first serve. Once a passenger accepts the terms (“a train will take you to the Napoleon Hill station and will arrive within four minutes; the fare is $2.00″), the kiosk charges their credit card or accepts cash and makes the sale. The negotiation process could take place at the kiosk, or via the traveler’s own independent communications device. The kiosks themselves would constantly show the average prices for various trips on the network, allowing travelers to be aware of the going market rates for the travel they wished to buy.

The experience from the point of view of a traveller would be something like this. John enters the Union Station transit terminal and hurries over to the nearest free kios. He has a hot date, and wants to get to the Lincoln Tunnel terminal – just one block from his girlfriend’s apartment – as quickly as he can. Punching in “Lincoln Tunnel, and make it snappy.” He sees that the train ride most recently has gone for $3.50, the train will arrive in seven minutes, and the transit time will be half an hour. Not good enough – but a cab company offers to pick him up immediately (they have a car already at the station) and get him there in twenty four minutes or less for $27.00. He accepts, swipes his card, grabs the receipt that tells him to go to cab stand B and get in cab 974, and hurries away from the kiosk.

The next customer at the kiosk, Mary, arrives with her daughter and a crated dog in tow. Mary is heading for the veterinarian, and has an appointment there in an hour. She’s not in a big hurry, and she doesn’t want to spend a lot of money. On the downside, the vet is four blocks from the nearest terminal, and Mary does not want to carry this dog four blocks in the July sun. There isn’t a train service to her vet’s terminal (the tracks haven’t been laid yet by the rail companies – but Mary does check the box to indicate that she’d be interested in rail service if someone decides to make the option available) but the bus takes just 40 minutes and costs only $2.00 for Mary, $1.00 for her daughter (kids ride for half price on most conveyances, a marketing tactic almost universally adopted), and an additional $2.00 fee for the dog crate. Mary books the bus ticket and splurges on an additional $5.00 to cover the quick cab ride from the destination terminal to the vet’s office.

(In one alternative timeline, when Mary and family return from the vet the total fare ends up being $17.00, because now it’s rush hour and the bidding for rides is hotter. In another timeline, the dog has to stay with the vet overnight so Mary and her daughter take in a movie and dinner out to avoid the rush hour, and come home much later for $5.00 total.)

A third customer – a married couple this time, Phyllis and Phil, arrive for their regular commute. It’s mid-afternoon, but both Phyllis and Phil work an odd shift as CD duplicators at the local software company. They punch in their standard commute settings on their iPhones and quickly confirm a $3.00 bus-ride to work, and hasten on their way – nothing fancy, they do this every day and the fare is always about $3.00. Today there’s one change, though – Phil also remembers to buy a ticket for his dad, who’s coming to visit for Saturday dinner the next day. He locks in a great deal on the 60-minute train ride for his father, with a bus ride to cover the six blocks between Phillis and Phil’s apartment and their home terminal, and e-mails the ticket information and confirmation code to his dad before taking the escalator up to the bus loading area.

By utilizing a bidding model, and publishing the average bid amount information, both passengers and conveyance providers have exact and accurate information of the demand picture at any given time. Given most urban infrastructures, it would seem a logical first assumption that much, if not all, demand could be profitably met by transit companies. Full buses and trains make money, and the classic problem of mass transit has been the need to have large quantities of the equipment running at low capacity in order to provide service at a particular time of day. Under a bidding model, people wishing to take trips that other people don’t want to take will have to bear the costs of their relatively expensive choices or needs. Alternatively, people with those needs could trade time for money, by waiting longer periods in order to accumulate more bidders for a particular ride. (“There might not be anyone else needing to go over to the little-used Junktown terminal, but if I wait a half an hour, I bet a few more people will show up.”)

This would also be a highly profitable model for the conveyance companies, while also promoting vigorous competition and eliminating the kind of ill treatment of passengers that “you’re stuck with us” mass transit authorities are notorious for providing. If train company A will not provide good service to the people wishing to make a trip, then bus company B is certain to spot the opportunity (“look, a whole wad of unmet bids from Johnson Street – let’s snag those and send a bus over”) and scoop them up. Customers equal money in this model – and customers who want to represent more money in order to get better levels of service are free to do so.

I would anticipate the development of several tiers of service providers, in fact – from luxury cabs to utilitarian jitney bus companies – in order to capture the entire transit market. There is so much diversity of demand and desire that a similar diversity of providers would spring into existence, funded by the real demand for real service.

The main peril that I see in such a system is that established conveyance companies would engage in regulatory capture of the transit authority and try to keep out new competition. I would mitigate that risk by building free competition principles into the charter and structure of the transit authorities themselves – for example, by establishing an “open audition” policy by which any comer could offer services on a trial basis within the system (indicated clearly as such), so that the more adventurous travel patrons could “take a chance” on the newcomer and quickly establish a bona fide track record. There are other ways of keeping competition open, but all of them in the end rely on a demand for free competition from the transit customers themselves.

Municipalities or areas that wished to subsidize travel for their poorer citizens would, of course, be free to do so. However, my suspicion is that this model would drive down the costs of travel for nearly all travelers – with the exception of those who under current systems enjoy high level of service in areas or times of low demand. Those folks, it should be acknowledged, would end up paying more or enduring worse service.

Three Inventions Every New Parent Needs

Engineering, Parenting No Comments »

Let modern technology make child-rearing easy and fun!

Breaking OPEC: FlexFuel FTW!

Economics, Engineering, Environment No Comments »

Bob Zubrin has an absolutely brilliant idea: require new vehicles to be equipped to run flex-fuel, i.e., from either alcohol fuels or regular gasoline. The technology seems to be proven and the cars are a small segment of the market today – so small, unfortunately, that most gas station owners don’t want to put in pumps for alcohol fuels that almost nobody can use. If new cars can use either pump, drivers can choose ethanol or methanol or other biofuels – making them instantly economically viable across the country. But never mind my blathering – go read the whole piece, it’s excellent.

Normally I am opposed to direct government mandates on technology. But this is one that I think the car companies would like. And if the car companies don’t like it, in this case I’m willing to put pure capitalism behind economic nationalism. And, it f**** OPEC, and I’m pretty much in favor of anything that does that.

Bridges Are Cool

Cool Things, Engineering No Comments »

And these are some of the coolest.

(H/T Marginal Revolution.)