Slashdot Mirror


Traffic Optimization: Cyclists Should Roll Past Stop Signs, Pause At Red Lights

Lasrick writes: "Joseph Stromberg at Vox makes a good case for changing traffic rules for bicyclists so that the 'Idaho stop' is legal. The Idaho stop allows cyclists to treat stop signs as yields and red lights as stop signs, and has created a safer ride for both cyclists and pedestrians. 'Public health researcher Jason Meggs found that after Idaho started allowing bikers to do this in 1982, injuries resulting from bicycle accidents dropped. When he compared recent census data from Boise to Bakersfield and Sacramento, California — relatively similar-sized cities with comparable percentages of bikers, topographies, precipitation patterns, and street layouts — he found that Boise had 30.5 percent fewer accidents per bike commuter than Sacramento and 150 percent fewer than Bakersfield.' Oregon was considering a similar law in 2009, and they made a nice video illustrating the Idaho Stop that is embedded in this article."

16 of 490 comments (clear)

  1. Negative accidents by Muros · · Score: 4, Insightful

    "Boise... 150 percent fewer than Bakersfield." How'd they manage that?

    1. Re:Negative accidents by Sqr(twg) · · Score: 5, Informative

      Clicking through to the actual study, I found this quote: "Boise was 150%-252% safer (2.05-2.52 times safer)." Looks 150% correct to me.

  2. Dangerous by KingOfBLASH · · Score: 5, Insightful

    IAAC (I Am A Cyclist). However I think that people who treat riding a bike as if they own the road are asking for trouble.

    It doesn't matter if you SHOULD have right of way. It matters if someone will see you and stop (and not run you over). When you come up to any dangerous intersection (or any intersection) you should slow down, look to make sure you're not going to get plowed into, and THEN go.

    As a cyclist, you might be going 30 KPH easily, but you're much easier to miss for a motorist because you are so small, and you might come at an odd direction (most people aren't used to making sure there's no cyclists on the shoulder).

    1. Re:Dangerous by pipedwho · · Score: 5, Insightful

      There is nothing in the regulations that say treating a stop as a yield or a red light as a stop sign somehow gives you any additional right of way. All it means is that you don't have to wait as long to determine if the intersection is safe to cross.

      The Idaho Stop / California Roll is all about going slow enough that you can gauge the traffic heading towards the intersection for the other directions to determine if it is safe to move. A stop sign simply 'forces' cars to stop even if it would be otherwise safe to only slow down to a few miles an hour. And a red light forces cars to stop even when you can see for miles in both directions that there is nothing coming.

      A car moving slowly can easily kill or do heavy damage to a pedestrian (or another road user). Whereas a bicycle has a much smaller cross section, lower kinetic energy, and a rider that is far more likely to come off badly no matter how small the object/person is that they collide with.

      You can't be serious saying it is more dangerous to give way at slow speed versus coming to a complete stop and then having to huff and puff back up to speed, while simultaneously being overtaken with inches to spare by a bunch of impatient motorists because you can't outpace them.

      In fact the article gives clear statistics showing the exact opposite. Just about every cyclist I know treat 'right of way' as synonymous to 'enter at your own risk'.

  3. enforce existing laws? by dltaylor · · Score: 4, Insightful

    How 'bout ticketing the jerks who disrupt traffic by rolling through intersections, break up the 30-bike pelotons, and otherwise make them actually obey the law? Maybe they wouldn't have so mny accidents if the riders weren't abnoxious.

    If it had been motorcyclists, rather than bicyclists that tailgated the SoCal guy and hit him when he stopped, there would never have been the travesty of justice as his murder conviction.

    1. Re:enforce existing laws? by nblender · · Score: 5, Insightful

      Around here cyclists have a sense of entitlement. You can be sitting in your car, at a red light and watch cars and cyclists cross in front of you. When their light turns red and your light turns green, the cars will stop but the cyclists will keep crossing in spite of the red... So you and 100 other cars are sitting at a green light waiting for the stream of cyclists to stop... I've been at the front and started to creep through the green in hopes of signalling that maybe their turn is over... The result is a nice finger gesture... On rural roads, the weekend tour-de-france wannabes ride on the 1 lane highways with no shoulders (the white line on the side of the road is in about 12" and then it's 'ditch')... So legally, you can't pass them if you have a solid line, which especially sucks if they're ascending a long hill at 3mph in the middle of the lane... Because it's a hill, there's a solid center line the whole way and you're stuck there... If you toot the horn in hopes they might consider pulling over and letting the dozen or so cars pass, you again just get the finger... "Fuck you gas-guzzling asshole. I'm out here exercising righteously!"

      Yeah; I have a bad attitude... I cycle too but I don't get in everyone else's way...

  4. Re:As a pedestrian by ThatsMyNick · · Score: 4, Informative

    Yup, idiots blasting through red lights is a big no. Thankfully that is not what the article or anyone is proposing. In Idaho, red lights can be treated as stop and go for bicyclist. Running red lights is still illegal, and fines are much higher than other states/cities and are enforced. Bicylist are also allowed to make rolling stops at stop signs. Which means slow down, to make sure the intersection is safe, and yield to other vehicles, and if there is no one, just proceed. Blasting through a stop sign is a big no, too.

  5. stopping vs yielding by Firethorn · · Score: 5, Interesting

    So, have you ridden a bicycle in a commuting type situation? I've read before that converting many stop signs to yield signs, even for cars, would save all sorts of energy without significant increases in accidents.

    With a bicycle it's all about energy conservation. When I'm biking it takes me significantly longer to get up to speed, and my top speed is still well below that of the vast, vast majority of cars.

    As such, I typically have much longer to assess an intersection before I reach it, my stopping distance is extremely short, but if you make me stop it extends the time I'll be in the intersection when I DO cross significantly. If I'm allowed to use a stop sign as a yield, I'll attempt to time my passage such that I'll cross near my maximum speed, clearing the intersection expediently. Being through quicker reduces the chances I'll be involved in an accident there.

    As a bonus, this way I'm less in driver's way, making me less likely to piss them off.

    --
    I don't read AC A human right
    1. Re:stopping vs yielding by pslytely+psycho · · Score: 5, Interesting

      Yes, when I lived in Santa Clara, I did.

      As a driving instructor, I have a hard time with 'treating a stop sign as yield," and yes, I know that colors my opinion.

      Also, I think a lot of my opinion springs from the gal I hit last summer who slowed for a stop sign and decided (in her words to the cop) "I thought I could make it."
      Fortunately I slammed my brakes and the impact was at a relatively slow speed, so no injuries.

      I realize the 'idea' is to proceed 'only when clear.' Of course you only notice the stupid ones, not the ones who do it safely.

      Most likely, I've simply entered the 'old fogey set in his ways period of life......'

      --
      Donald Trump, on a crusade to make Nixon look respectable
  6. Re:So a bicyclist is safer..... by msauve · · Score: 5, Insightful

    " perhaps my opinion is clouded as to their reasoning"

    Their reasoning is that cyclists don't obey the rules anyway, so why not legalize the behavior so they have one more way to bitch about cars not yielding to them.

    Seriously, I live near a university town, and cyclists are terrible about obeying traffic laws, they'll glide through stop signs, ride the sidewalks when convenient, etc. Then they'll turn around and complain that cars don't treat them as equals on the roadway. Well, you can't have it both ways, if you want to use the right-of-way, you need to follow the same rules as everyone else. I have no sympathy for the self-righteous assholes. (not all, but a very large and visible number behave that way)

    If it's safe for a bike to glide through stopsigns or treat all stoplights as signs, then it's safe for motor vehicles to do the same. In fact, it's recognized that this is sometimes the case - that's why there are blinking red lights. There's no reason to give bikes any special treatment.

    --
    "National Security is the chief cause of national insecurity." - Celine's First Law
  7. Re:damn units by fiziko · · Score: 4, Informative

    It depends on which you are using at the reference point. If the raw numbers are 40 for city A and 100 for city B, then city A has 150% fewer accidents than city B when city A is the reference point, but 60% fewer when B is the reference point.

    --
    - W. Blaine Dowler
    http://www.bureau42.com
  8. Re:So a bicyclist is safer..... by CRCulver · · Score: 5, Informative

    In many developed countries now, road and petrol taxes are essentially punitive taxes: the state wants to make driving more expensive so that more people choose to use public transportation (or cycle) instead. As cyclists are not harming the environment or contributing to gridlock on city roads, then there is no reason they should be expected to pay the tax. Maintenance of roads is out of the general state budget anyway, not just paid from the taxes extracted from drivers.

  9. Many polite people by GlobalEcho · · Score: 4, Interesting

    As a cyclist who commutes year-round in Chicago, I just want to give a little shout out to the motorists, who are almost all incredibly polite. It's human nature for us to notice and remember the jerks (and I recall a few) but the incredibly vast majority of motorists are accommodating, friendly, and (when paying attention) cautious.

    If I have one request of motorists, it's to get off the cell phones, something I am sure every road user -- pedestrian, cyclist and motorist agrees with.

  10. Re:Stopping and thinking by mellon · · Score: 4, Interesting

    The Idaho rolling stop law doesn't make taking your right of way legal. In fact, it makes it illegal. The proposed Oregon law increases the penalty for doing it. If you got to the intersection first in your car, you get the right of way. This is how I treat stop signs when I'm on my bike: if a car got there first, I stop. Unfortunately, they then usually motion me to go, which is really annoying, because I already stopped, so they aren't doing me a favor, but they think they are, so I have to be nice about it. One of the arguments in favor of the rolling stop law is that it avoids this annoying dance—drivers know what the law is, and are more likely to follow it, and so do bicyclists. The problem with the law in many states now is that it's bogus, so bicyclists and drivers collaborate to violate it.

    It's really funny when someone says "I'm a professional, so my opinion matters more than the data." Well, maybe funny is the wrong word.

  11. Re:Stopping and thinking by mellon · · Score: 4, Informative

    No, this means that you don't understand physics. If I come to a full stop and then go, I am going slower, so the time during which I am exposed to cross traffic is longer, which increases the likelihood that I will get hit. So at two-way stops, any bicyclist with a strong sense of self-preservation and long lines of sight goes through the stop sign without stopping. It doesn't mean that we blast through without slowing down, but we do try to keep as much speed as we safely can. Life is full of tradeoffs...

  12. Re:Stopping and thinking by mrchaotica · · Score: 4, Insightful

    You wanna know what else increases the likelihood of being hit? Doing unexpected shit, like not stopping for a stop sign.

    Hence the point of the article, which discusses what happens when that "shit" stops being unexpected.

    --

    "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz