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NYC Crosswalk Buttons are Inoperative
cdneng2 writes "NY Times has an article that New
York crosswalk push buttons are actually ineffective.
Apparently, New York City deactivated most of the pedestrian
buttons long ago with the emergence of computer-controlled
traffic signals. From the article, 'More than 2,500 of the 3,250
walk buttons that still exist function essentially as mechanical
placebos, city figures show.' Well, apparently New York city isn't
the only city like this. I guess the answer lies in the same
reason why people press
the elevator button more than once."
Surprisingly enough, NY doesn't have any intersections listed in the top 10 most dangerous intersections list, compiled by State Farm.
However, you can find the 24 most dangerous intersections in NY, as compiled by the NYPD here.
Either way, crossing the street isn't the safest thing in the world.
...don't question it!!!
Downtown SLC is the same way. They even have LED displays that count down the time until the light changes. It goes from yellow to red when it starts getting close to 0. It also makes a very audible beeping noise as well. If it's made it safer to walk downtown or not I have no clue.
Hold up, wait a minute, let me put some pimpin in it
I didn't know anyone in NY who waited for a the Walk Signal to turn before start walking. NewYorkers are best at finding the shortest possible route to their destination. And I dont blame them. It is pace of life they experience.
Consensus is good, but informed dictatorship is better
Computer-controlled traffic lights work a lot better than the old-fashioned timed system. (well, unless the detector screws up, but that's rare) So allowing people to interrupt the sequence would do little good. At the same time, you don't want people standing on one of those 700 crosswalks which will never volunteer a "walk" sign for ages.
So, to make sure that the people use the button in the places they need to, it's easier to leave the buttons on all the intersections. Otherwise, people might not think to use the button when it's necessary, at least not without a lot of time and prompting.
Bush: He's Liberal in all the wrong ways.
Which is the point, of course. People do feel better if they think they've "done something" about any problem - even one as trivial as opening the currently-closed door. Passively waiting for something to happen doesn't come easily to many of us...
:-) In fact, it's more likely that the time-of-last-press is one of the inputs to the algorithm, with earlier presses having a priority. So the more you press, the less chance you have of getting a busy lift :-))
What I find odd are those who hit the 'summon elevator' button more than once - A lift algorithm isn't going to take into account the number of times you press, and I doubt the buttons are pressure-sensitive
Simon
Physicists get Hadrons!
There was something like that in a Kurt Vonnegut novel whose title has slipped my mind. Something about an automated spaceship with only two controls: a START button, and a STOP button (the latter isn't connected to anything.) The point being that humans feel better when they think they have control over their fate.
Actually, it's probably a moot point - I've never met a New Yorker who actually waits for the light.
At some intersections in Toronto, not only does the walk button work, but unless it's pressed, the walk signal never lights up. (Kind of a pain when the button isn't right at the corner and has a lot of snow around it.) It would be nice if they'd mark the "Cars Prefered" crossings to let people know.
One line blog. I hear that they're called Twitters now.
There is an intersection in the outskirts of Helsinki, Finland, where the push button works even worse. This is an intersection between two pretty big roads with major traffic, and there's a standard traffic light cycle going from "green for road A" to "green for road B", etc. If you are a pedestrian walking in the direction of either road, you need to push the button, and will eventually get a green light at the same time as the drivers on the same road. Now, guess what: the only way the button affects the lights is that you get a green light the next time it's possible -- if you don't push the button, the cycle is exactly the same except that the pedestrian light is red all the time. So the button does nothing but you need to push it to cross legally.
"I also belive that at the gas station, Regular, Plus and Premium Unleaded all go to the same tank underground."
Actually, sir, according to a very reputable gas supplier that I know, many gas stations do NOT purchase higher octane fuel. It is far from a preposterous notion, in fact it is a reality at many, many gas stations.
Try Nottingham (the english one) for some really nice crossings, which actually detect a cyclist approaching on cycle-routes (embedded inductive sensor under the pavement) in enough time that it changes the lights in time for you to cross without even needing to slow down.
Now if only more junction designers could have a look at stuff like that, and see how convenient it is when things "just work"...
In Cleveland, a large number of crossing signals are synchronized with the stoplights, which are timed, and there's no walk button at all. I know of at least one walk button, however, whose behavior is rather strange: If someone pushes the button, then a period of time goes by, the light changes, and the walk sign illuminates. If nobody pushes the button, then eventually the light will change, but the don't walk sign stays lit. Evidently, you're jaywalking unless you push the button, even if the light changes to be in your favor!
On a related note, ever notice how the "door close" button in most elevators does absolutely nothing? The button in the elevator where I work actually does function properly, letting you send yourself on your way about 6 seconds more quickly than without. If you're standing right by the panel, but you don't push the button - which everyone in the building knows will get you there sooner - everyone else starts shifting around uncomfortably, waiting for you to hurry up and push it. (I've actually seen one professor push the door open in an effort to squeeze another 15ms or so out of it!) But in the next building over, you can pound on the button, hold it in, kick it, or whatever, and the door doesn't close any faster than usual.
in India and (?!) Quebec: countdown timers. It's not as psycho as it first sounds. People don't race to beat the timer. It just chills. everyone. out.
In India they're for the cars. No more edging through reds because you don't know when the frig it's gonna change and you wonder if you're hitting the sensor. No, right there in front of you, 15, 14, 13, 12. So also, you can get that thing out of your glove compartment, there's time. Or take a sip of that drink, bite of that sandwich. No surprises. Numbers in red for stops and in white or green for time till the next stop. You still get the yellow, so people don't race -- they have more time to gradually increase speed if they want to make it through.
In Quebec, it's for the pedestrians. Not nearly as useful IMHO. Cars can look crosswise to see how much time the pedestrians have left, but it's aimed at the pedestrians, to tell them how much time they've got. Doesn't stop people from wandering across with no time left, I've noticed.
The Indian version is the best thing I've seen. Cuts out all of the guesswork and most of the tension and cause for accidents at intersections. Genius. Of course, they're only at super busy intersections.
They also have the #2 best thing I've seen. Across the red lense of traffic lights at the busiest intersections is printed the capitals R E L A X. No foolin.
Well said - and apparently, office thermostats are quite often placebos, too. So much for that coworker who constantly fiddles with the controls...
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Stray voltage
This is just picking nits, I suppose...
In Minneapolis, most newer signals don't have push buttons (which can be aggravating when there's little traffic), but they will always light up the "walk" sign. However, most older ones which have the push buttons will not light the "walk" sign unless the button was pushed. Usually, this isn't an issue, since people will just walk when the light is green, but certain problems come up.
Pedestrians wishing to cross at "T" intersections that are coming from the top of the T to one of the other corners can get stuck at a "don't walk" sign without being able to see if the traffic light is green or not. Also, there can be problems at intersections with left-turn arrows, since pedestrians get into the habit of going against "don't walk" signs when they see green. In this case they can end up walking right into the path of turning cars. Obviously, people paying attention will either wait or at least make sure no cars have their turn signals on, but I think even people accustomed to such intersections let their minds drift from time to time.
Of course, I think most road and building designers just make awful decisions regarding pedestrians most of the time anyway. I'm sure many college students have cursed their campus's architects since buildings often tend to lie right in the path you want to go. I suppose it's not a big deal in many cases, but some of these buildings are very large and can require quite an excursion to go around. Often, I suppose security is considered to be a big overriding issue, but sometimes things just get to be silly. At least one dorm at the University of Minnesota requires some students to walk about two city blocks inside to get from their rooms to the front doorall other doors are alarmed fire exits. I'm all for promoting exercise, but that's kind of ridiculous, in my opinion.
Bah, I'm wandering off-topic now...
I wrote much of the centralized traffic control and communications code for NYC's traffic control system back in the early nineties (a VME-based system using SVR4 UNIX and VxWorks running on 68030 processors which replaced the previous IBM system from the late '60-early'70s.) I recall a story that I heard when I was helping install the system. There was a community in NY complaining about needing to have a crosswalk signalized because people were having difficuly crossing the street. The traffic flow technically didn't require that a signal be installed, but it seemed that it would be politically expendient to do so, so a crosswalk signal was installed. There was evidently quite a bit of outrage when the citizens in the area dicovered it was a push-button activated crosswalk. You see, it turns out this was an Orthodox Jewish community - they couldn't push the button on the Sabbath (religous taboo, for those who don't understand) and thus had even more difficulty crossing to get to the synagogue. (I can't say for sure if the story was true, but it wouldn't be suprising if it was.)