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Old February 28th, 2007, 07:57 PM   #41
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Complicated intersection in London

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Old February 28th, 2007, 08:07 PM   #42
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^ well it sure took someone long enough to post that pic, haha.

In regards to some posts earlier, most US stoplights are set up so you turn left on a green light against oncoming traffic.

In Chicago the habit is:

When the light turns green and you're turning left, you creep out into the center of the intersection as far as you can while still giving you enough room to complete a left turn. Cars behind you waiting to turn will creep up right behind you as well. You wait for the oncoming traffic to come through an intersection (many times the entire time it's green), and then when the light turns yellow - oncoming cars will stop on the other side of the street, and you and the 1-2 people behind you who managed to creep into the intersection to some degree will quickly turn left.

If there are normally a lot of people turning left, this can really backup traffic, as you can only get 2-3 cars through the intersection per cycle. In these cases, the city will eventially realize this, and set up a turn lane with a dedicated green arrow.

Many times though, that green arrow only lasts about 3 seconds at the beginning of the cycle. This lets up to 3 cars go at the beginning of the cycle, then more cars will enter the intersection as they wait for oncoming traffic to drive through, and then those 2-3 cars will turn left at the end of the cycle. This lets twice as many cars through, but only needs a green arrow for a few seconds at the beginning of the cycle.
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Old March 1st, 2007, 05:01 AM   #43
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Quote:
Originally Posted by Nicolás View Post
yep, it's very dangerous sometimes when the oncoming traffic is hidden by a car which turns right (into the street I want to turn left into). I was always afraid of situations like that when I was practicing for my driver's license.
In very dangerous situations or in big cities on large roads the "green/yellow/red arrow light" often is used (like in the Netherlands). ...
Yes, this is also one of several things that make me nervous when driving. An even
bigger problem is if the road ahead slopes down and there are cars waiting to
turn left from the opposite direction, especially at night, and it's hard to see.

But the biggest problem is that one also has to yield to pedestrians. It is easy
to forget to look for pedestrians crossing the road on the far left when you
suddenly get the short opportunity to complete your turn across 3-4 lanes
of heavy traffic. That is why I really don't like the system in North America
and most other countries in the world.

I think on major streets left on "normal"
green should never be allowed, or perhaps only at night. During heavy traffic,
I don't see much advantage to this system, because usually cars simply
cannot complete the turn on green, and only do it when the light turns
yellow or red.
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Old March 1st, 2007, 07:35 AM   #44
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Quote:
Originally Posted by Chicagoago View Post
In regards to some posts earlier, most US stoplights are set up so you turn left on a green light against oncoming traffic.

When the light turns green and you're turning left, you creep out into the center of the intersection as far as you can while still giving you enough room to complete a left turn. ... You wait for the oncoming traffic to come through an intersection (many times the entire time it's green), and then when the light turns yellow - oncoming cars will stop on the other side of the street, and you and the 1-2 people behind you who managed to creep into the intersection to some degree will quickly turn left.
It works the same on all intersections where you are allowed to turn left against the oncoming traffic. For instance, in San Francisco you will find very few intersections with protected left turn because with heavy traffic they tend to create a congestion. People do exactly what you described.

In suburbia, on the other hand, almost all intersections have protected left turn. People get spoiled and then cannot adjust to the earlier situation quickly enough. In my city, there is such an intersection on a road that has one lane in each direction. This road has a local importance and bears a fairly large amount of traffic. Usually those who are turning left will pull as much to the middle and to the left of the intersection as possible and wait for the opportunity to turn. However, there are some people who won't know how to deal with such situation, and they will block the entire lane. After receiving a honk from drivers behind, they will usually give up and just drive straight without turning
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Old March 1st, 2007, 05:47 PM   #45
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^ Chicago is the exact same. Compared to cities you see like LA or Dallas - a great deal of the main roads through neighborhoods in Chicago are two lanes in each direction as well. You have to know to pull into the exact middle of the street to allow others to "pass" you on the right and continue straight down the street. If people stop in the main lane of traffic turning left, people will get quite upset and honk at their ignorance of customs.

I was surprised when I moved to Chicago from smaller cities in the midwest - I assume all the main roads in Chicago would be at least 4 lanes since it was such a huge city. I love the fact that many of them are only 2 though, as it helps out pedestrians a lot, and gives the city a much more charming feeling.

There are many 4 lane roads of course, but they aren't everywhere (in the densest areas of the north side - basically every main road is 2 lanes ), they get larger as you go west and south - as these are the newer areas of the city.
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Old March 2nd, 2007, 08:27 AM   #46
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Quote:
Originally Posted by Chicagoago View Post
I love the fact that many of them are only 2 though, as it helps out pedestrians a lot, and gives the city a much more charming feeling.
Agree. Aesthetically, they are much more pleasant than four-lane streets.
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Old March 4th, 2007, 07:47 PM   #47
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Quote:
Originally Posted by TheCat View Post
That's interesting, do you mean there is a separate warning light about 100m away? If so, it's interesting to see pictures
I did see one of these in Waterloo ON when I lived there, but for some reason, they didn't work as well as they do in Edmonton. Timing doesn't seem that accurate. Here is the link from this website that has the picture.
(Fifth picture down "Approaching 142nd Street"

http://albertaroads.homestead.com/hwy16e/hwy16e3.html

Courtesy of Julian Macdonald who took the pictures.

In the picture, the warning light that you see in the picute will start to blink, and then the traffic light just in the distance will turn red once the car reaches the intersection (if the car travels at the correct speed).

Jimmy
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Old March 4th, 2007, 08:41 PM   #48
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ok, here are traffic lights in Croatia. this is not large intersection and it has T shape, so not many traffic lights, but here you can see the green right arrow which means that you may turn right, but be careful: probablay pedestrians have green, too!

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Old March 4th, 2007, 10:13 PM   #49
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Quote:
Originally Posted by Justme View Post
Complicated intersection in London

that's the ugliest thing i ever seen.
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Last edited by -Corey-; March 4th, 2007 at 11:15 PM.
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Old March 4th, 2007, 10:56 PM   #50
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Old March 4th, 2007, 10:57 PM   #51
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In Mexico







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Old October 11th, 2007, 08:31 PM   #52
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More mexican tarffic lights:

In Mexico City:




In Monterrey:




In Chihuahua:


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Old October 11th, 2007, 08:52 PM   #53
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In The Netherlands;









Bike Traffic Light Countdown;


Fasterdam (Includes trafficlights);
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Old October 12th, 2007, 03:11 AM   #54
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Portland, Oregon





Taipei, Taiwan



Seattle/Lynnwood, Washington


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Old October 12th, 2007, 03:59 AM   #55
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Putrajaya











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Old October 12th, 2007, 04:00 AM   #56
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Quote:
Originally Posted by Chriszwolle View Post
In Germany, i saw some traffic lights, when you want to turn left, crossing the other direction, the opposite direction gets green too, so although you have the green light, you still have to wait to turn left.

Those situations in The Netherlands are quite rare.
That´s why a car hit me when I was a child, it was a painfull moment, a broken foot, but luckily nothing more.

In Bulgaria Trafficlights have secondcaunters in order the people to know how much time they still have, yes, it´s awesome.
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Old October 12th, 2007, 04:25 AM   #57
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Johor Bahru

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Old October 12th, 2007, 05:27 AM   #58
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this one in davao. it looks like the ones from los angeles

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Old October 14th, 2007, 03:38 AM   #59
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Kuching

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Old October 14th, 2007, 08:19 AM   #60
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Typical traffic light in Perth, Western Australia
image hosted on flickr

image hosted on flickr
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