Tag Archives: bike lanes

bike lanes and light lanes

Some while back, BikinginLA set forth a long list of legislative changes that could make biking in Los Angeles a safer and more enjoyable experience. A couple of his suggestions bear on bike lanes: For example, requiring that streets with heavy traffic also provide bike lanes; or placing full responsibility for an accident occuring in a bike lane on the driver; requiring that bike lanes be maintained in their original condition; and (though it doesn’t always require a bike lane) stipulating that cars must leave three feet of clearance when passing bicycles.

But as anyone who’s spent time riding in the city knows, bike lanes are sometimes few and far between. To confine yourself to riding only in bike lanes is to consign yourself to riding in small circles in local communities (not exactly true, but still…). So with that in mind, I was recently struck (reading my friend Jordan’s blog) by an idea a couple of designers had: Rather than putting bicyclists in bike lanes, why not have bike lanes travel with cyclists?

As they note:

A close brush with a distracted driver is enough to intimidate the most avid bikers from riding at night. The problem isn’t just about visibility, as safety lights are effective at capturing the attention of a driver. However, these lights are typically constrained to the bike frame, which highlights only a fraction of the bike’s envelope. Bike lanes have proven to be an effective method of protecting cyclists on congested roads. One key is that the lane establishes a well defined boundary beyond the envelope of the bicycle, providing a greater margin of safety between the car and the cyclist. Yet, only a small fraction of streets have dedicated bike lanes, and with an installation cost of $5,000 to $50,000 per mile, we shouldn’t expect to find them everywhere anytime soon. Instead of adapting cycling to established bike lanes, the bike lane should adapt to the cyclists. This is the idea behind the LightLane. Our system projects a crisply defined virtual bike lane onto pavement, using a laser, providing the driver with a familiar boundary to avoid. With a wider margin of safety, bikers will regain their confidence to ride at night, making the bike a more viable commuting alternative.

At first glance, it’s a great idea, though I’m still not exactly sure how visible the lane would or could be. It might be most succesful in places where car traffic was moving slowly enough that cars would see bikes before they were close enough to pass; car traffic moving at high speed might just miss the light entirely in the process of blowing by. But my favorite part about the idea is the way in which it suggests that bikes have a larger envelope than the couple of inches surrounding their person and their bike. A light like this might go some ways towards asserting that bikers actually should have a right to something more.

(Thanks again to mere pixels for the link)

UPDATE (22 january): Bike Commuters went the extra distance and emailed the designers with some questions about the project. Their response ends with this fascinating comment:

It’s been truly remarkable to see the excitement that this concept has generated, especially considering it was just a fun quirky idea to begin with. What’s been equally interesting in my opinion is to see how the product has pushed the debate of who owns the roads. This well established debate has been a common point of discussion within my own family, and clearly the LightLane, nor any product, will solve it. Instead we hope that it connects with people in a new and fun way.

Please see the full response over at Bike Commuters.

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riding in the dark

Been a while since last writing, though the riding goes well.

Tonight’s ride wasn’t so much to speak of (down Westwood to Santa Monica, push up through Century City and split lanes through Beverly Hills until Santa Monica South widens into Burton Way; thought about crossing lanes in traffic to catch the left turn onto Sixth, but decided in favor taking the crosswalk and a moment to rest before catching up to traffic at Fairfax; move up to Fourth, split the darkness, roll stop signs east of Western, turn up Kenmore in the suddenly gathered night), but I’d like to pick up on a note or two after last week’s election.

As Gary pointed out, last Tuesday’s election was indeed a victory for transportation, no matter how cynical you are. It was not, unfortunately, an election that delivered everything that one might have hoped for, but I suppose elections never are. All that said, I have been turning over a couple of things in my head.

First is the issue of Measure R. To gloss the issue – imperfectly – the fine citizens of LA County have just voted themselves into a higher sales tax, with the increased revenues slated to be spent by Metro on a variety of transportation projects all across the county. It’s a great idea, but I just have one request: Can whomever is doling out that money or soliciting project ideas think for a moment about bicycle infrastructure from the perspective of the bicyclist? I’m not talking about designated bike lanes on every bike-friendly street; I’m not even saying that we need sharrows on every street (though that would be sweet). I’m thinking really only of the small section of Fourth Street that’s been affectionately named the Bike Boulevard. It’s a great way to sneak home from the Westside: Really light traffic, which leaves ample room to swerve past what would otherwise be maddening pavement, and beautiful scenery to either side. My complaint, I suppose, centers on the intersection of Rossmore and Fourth. There’s a light at Third that holds up traffic, but the light cycles seemed perfectly timed to leave a gap on one side of the street when traffic is coming on the other. As a cyclist trying to cross that north/south traffic, I have one of two options: Wait what seems an interminably long time until I get a break wide enough to roll across (which is what I did tonight); or wait only long enough to see a half-opening before jumping through traffic (which I’ve definitely done). Neither solution seems particularly satisfying, but I have to be clear: The issue isn’t so much the wait. It’s how absolutely invisible I feel to traffic (and on the note of invisibility: Bikes are utterly invisible to sensors at Wilton and Fourth) curving north or speeding south on Rossmore. There’s little to no street lighting – probably a function of neighborhood policies, I suppose – and the intersection is further darkened by a stand of trees about the intersection. Beautiful to look at, but absolute murder to see in. It’s kind of terrifying.

So why not take steps to increase visibility of bicyclists at what is – by most accounts – a fairly popular east/west route for LA riders? I’m not saying put in flood lights or even demanding that flashing lights go off whenever a bike approaches the intersection. It doesn’t even need a stop sign. But there must be some way to both moderate cross traffic speeds and increase the visibility of cyclists. And as planning proceeds and the debates unfold over Measure R, I’d love to see changes in the infrastructure that come out of the experience of riding a bike in this city and not from some idea of what some study said in a different place.

Second, about this whole business of California Propositions. Relic as they are of a particular moment in the Californian democratic (demagogic?) imagination, I have decidedly mixed feelings about the whole institution. That said, I’ve been thinking about ways in which the institution of the Proposition might be turned towards cycling advocacy. Taking a couple of BikinginLA’s recent suggestions as case studies, what would happen if citizen cyclists wrote a proposition that made vehicular assault a criminal violation? Perhaps it might be possible to put drivers at fault for accidents occuring in the bike lane, in the same way that a driver who rear-ends another driver is automatically at fault. Or better yet, rewrite our vehicular code to make cars more responsible for the damage which they can inflict on bikes and pedestrians. Just a thought or two.

More, I hope, soon.