Showing posts with label Vélib. Show all posts
Showing posts with label Vélib. Show all posts

Sunday, July 19, 2009

Hardware, Software, Wetware

My twin brother Willie (who runs teams of engineers that design highly-sophisticated silicon chips) used to say that there were three kinds of computer "ware": hardware, software, and wetware. Hardware and software (and their distant cousin, firmware) you already know about, if you're using the Web to read this. Wetware is, of course, the user of the computer, and ultimately where the rubber meets the road, so to speak.

It seems to me that when one thinks about bicycle-commuting systems, the same three levels impose themselves. Let's consider them in reverse order:

There's the "wetware" crowd, the people who get out there and "just do it". Sometimes referred to as "vehicular cyclists", they insist that all that they need is the road and the rules for it, which exist everywhere. They tend to be skeptical of structured solutions. The most radical among them can be rather vocal in their beliefs that structure is bad, and will give the powers that be the ability to segregate cyclists to a second-class status. (I count myself in this crowd, although to be sure not one of the radical ones.)

Then there's the "software" crowd, the ones who think that to be safe, cyclists need the protection of bike lanes and striping -- clear demarcations that differentiate cyclist territory from motorist domain. Sometimes referred to as "infrastructuralists", they don't commute as much as vehicular cyclists, simply because bicycling infrastructure isn't so widespread as it could be. Those among this group who do commute regularly therefore are geographically distinct -- they tend to be located out West, in Oregon, Colorado, and parts of California and Washington. Sort of like rare birds with a distinct habitat.

Finally, there's the "hardware" group -- those who think that to be safe, bicyclists need their own separate and independent bikeways. These can be bike paths (typically engineered for about 8 mph, and leading to recreational destinations, not so great for commuting, really) or fully separate bike lanes (preferably with curbs to physically separate them from cars). The Achilles' heel of these approaches is usually the place where they have to come back to the "standard" roadway system. Rejoining the regular transportation system is the most critical aspect of any separated system, and often times it is under-engineered (the "engineering" consisting of a wheelchair ramp at the curb.)

I have a 3/8 mile stretch of bike path paralleling a busy road that I use on my daily commute, and I have learned that rejoining the traffic from that path is by far the most treacherous part of my daily ride.

Recently, a couple of designers have gone quite a bit further and proposed systems that totally separate bikes from the quotidian automobile infrastructure. (Maybe I should categorize these as "super-hardware" people.) Personally, I find them amusingly naïve and impractical. Naïve, because these people are convinced that public financing can be found for these schemes when it's hard enough to find money and will to do simple striping. Impractical, because I don't see where these structures provide the motiviation to ride. If one is motivated, he or she tends toward the "wetware", and all these other things just become (in their absence) excuses not to ride.

I'm not trying to be mean here, it's just my belief that since the advent of the first commercial "safety bicycle", the bike has evolved into a pretty efficient system which works pretty well quite on its own, thank you very much. When I see a new idea to improve the system, I'll be the first to doff my helmet. but it's not so easy to get excited about ideas that just tinker around the edges.

Anyway, let's take a look at a couple of these visionary pretexts for not riding.

Vel0-City is a system of elevated enclosed tubes proposed for Toronto. To its credit, it seems to have the macro-planning thought out in that it appears to be integrated into the mass transit system as a whole. To be fair to the envisioners of this project, I think that protection from the elements in the winter in Toronto is a winner of an idea, but I wonder if the good taxpayers of Toronto will support yet another mode of mass transit, in addition to its existing bus, tram, and metro lines. Like any of those other mass transitways, I suspect, graffiti would pose an ongoing problem.

Remarkably, Velo-City promises a perpetual tailwind, with one-way tubes somehow creating a "dynamic air circulation loop." I could use some of that, but I wonder about the physics!

The Shweeb (no, I don't know where the name comes from -- it seems vaguely German in its tendency to clear the throat) is a pedal powered monorail that exists as an amusement park ride in Roterua, New Zealand. Two pedal-powered capsules swing around a 200M monorail racetrack. Frankly, this looks like quite a bit of fun. The fun rumor is that someone in the London Development Agency has latched on to this idea as a means of mass transit in London. (Don't you just love the "science-fiction pulp magazine cover" look of the rendering at right?) I think this idea works much better as an amusement park race than as a mass-transit system. I'd hate to get stuck behind the little old lady who's doing some urban sight-seeing when I'm in a hurry to get to work. And as much maintenance as Velo-City would require in removing graffiti, Shweeb would require in spades. Believe me, you don't want the capsule that's just been given up by the vomiting drunk!

As a postscript, here's a different take on bikes-as-infrastructure: Hybrid-squared. This system proposes a public bike system (think Vélib) whose bikes have a combination of dynamos and regenerative braking to charge ultracapacitors that then dump their stored energy back into the grid when you return the bike to its station. It's a neat gedankenexperiment, and envisions a credit system where bike-commuting pays for mass transit use, which is a clever scheme. But I wonder if the net energy would amount to a hill of beans, enough to ever pay back the investment in infrastructure. (Is anybody running the numbers on these flights of fancy?)

Friday, August 15, 2008

DC SmartBike vs. Paris Vélib

Today (August 14), Washington DC rolled out its public bicycle system, called "SmartBike". There are 120 bikes based at 10 different stations spread across downtown Washington DC. I'm a little dubious about how it will work, or rather I should say that the system is structured in a way that is unclear. Is the system for locals or tourists? Some aspects of the system seem to discourage tourist use, but others suggest that the system will not work all that well for local commuters.

The obvious comparison is to the Vélib system in Paris, what Parisians have cleverly nicknamed "La Vélorucion". I've had the good fortune to visit Paris 3 times in the past year, and have personally admired Vélib. Rain, shine, night, day, whatever.. you see Parisians on Vélib cycles. You see the stations everywhere. At night, you see trucks full of Vélib bikes being hauled back to the central depot for maintenance. It's really something.

Both systems, Vélib and SmartBike, are subsidized by advertising (billboard) companies in a private-public partnership with the respective city. And the bikes (Vélib top right, SmartBike center right) are not so different, urban highly adjustable upright bikes with full mudguards, and high-capacity front baskets. (The DC program for some inexplicable reason decided to go with differently-sized front and rear wheels, thus doubling their tire inventory requirements for maintenance. And, equally inexplicably, the SmartBikes have no lighting system. No doubt a cost-cutting measure.) There the similarity (such as it is) ends.

In the thematic spirit of Practical Cyclist, let's run the numbers.

Looking at the chart outlining the systems at right, we can see that it's not really fair to compare the Paris and DC systems. (Note: corrected for DC served area.) A quick glance shows that the Paris system has 170 times the bikes, 150 times the stations, and 30 times the density (the Paris system covers approximately 5.5 times the land area). Not much of a match-up there; the American sponsors are being, ahem, a little timid (understandably, I suppose).

An even more striking contrast is apparent when you compare the fee structure between the two systems. To use a bike in DC, you can go up to 3 hours free. To use one in Paris, you are charged a surcharge of 1 euro after your first 30 minutes, and the rate of surcharge increases the longer you have the bike. At 3 hours, the limit of the DC system, you've been charged over 20 bucks on Vélib!

So what's going on here?

Well, it would seem, from the economic structure shown, that the DC and the Paris systems are designed to answer different questions. The Paris system tries to answer the question, "What would a mass-transit system based on bicycles look like?" The frankly punitive surcharges that they levy are designed to get the users to use the bikes to get to their destination and get them back in service. They are trying to create a feeling of reliability, such that you can go to your nearest station and expect to find a bike to use. (Failing that, if your nearest station is out of bikes, the station density assures that there will be another one very nearby.)

The question the DC system is trying to answer is not so clear. They don't cover a broad enough area nor do they have enough density to truly serve the commuter needs. Nor do they have a bike depot at Union Station, where all the train commuters come into town. The 3-hour limit is too ahort for a work day, and seems more oriented towards a tourist use. However, the station locations are not in the right places for tourists, and tourists won't use it anyway because of the annual fee. So I'm forced to conclude that the question the DC system is trying to answer is, "What symbolic but ineffective gesture can we make to show we are a 'green' city?" or, alternatively, "What can we do to further frustrate the cabdrivers of DC?"

I think the SmartBike system could work, even given the major limitation it has (that of being situated in a non-cycling city!) I think that if they situated a huge depot at Union Station, (where they care about how bicycles look,) and situated "receptor" stations around L'Enfant Plaza and the Capitol office buildings, it could succeed locally in terms of visibility and ridership. And that would be a success, indeed.