Welcome to City-Data.com Forum!
U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Automotive
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 08-27-2018, 04:43 PM
 
17,579 posts, read 15,247,745 times
Reputation: 22900

Advertisements

Ok.. So.. This image.


Keep the blue and red cars coming from the bottom, the red car at the bottom goes right..


Now.. Say that there is a blue car that enters from the top (outside lane) and is driving slower than the red.. Whatever.. the red car catches up to them and is going to the left(From his original perspective), but the blue car that enters from the top is going straight through.


What am I missing here? There HAS to be something more to this that I'm not catching here, because this seems to be designed to cause carnage.


Is the blue car entering from the top, even though they are in the outside lane, supposed to wait until all traffic in all lanes is clear before entering?


this would make sense, and the road markings seem to indicate that the right lane MUST turn right.. But allowing that lane to go straight.. I don't see how this works.
Attached Thumbnails
Two Lane Roundabout argument-39786162_1090041347822433_9129590330729955328_n.jpg  
Reply With Quote Quick reply to this message

 
Old 08-27-2018, 04:53 PM
 
17,304 posts, read 12,242,173 times
Reputation: 17251
No matter where you're coming from/going to you yield to traffic in the roundabout, yes.

A road I frequent is one lane in each direction for the majority but splits into two for the roundabout...which means the roundabout becomes the passing zone. With better handling cars taking the inner lane at higher speed in order to go straight through.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 04:58 PM
 
17,579 posts, read 15,247,745 times
Reputation: 22900
So, a blue car in the outside lane that is going straight, has to look behind him to see if a car in the inside lane is turning?

What's the point of saying that a car on the inside can't turn right then? If the outside lane has to yield.. Shouldn't matter.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 05:00 PM
 
17,304 posts, read 12,242,173 times
Reputation: 17251
Quote:
Originally Posted by Labonte18 View Post
So, a blue car in the outside lane that is going straight, has to look behind him to see if a car in the inside lane is turning?

What's the point of saying that a car on the inside can't turn right then? If the outside lane has to yield.. Shouldn't matter.
Behind him? At the exit of the roundabout if it goes back to one lane and both lanes have the option to exit there it just becomes your typical "right lane ends, merge left" deal like any other.

It's basically a turn right? You wouldn't try to make a right turn across a lane of traffic would you? You'd merge over first. It's incoming traffic that yields to traffic already in the roundabout. Not traffic in the roundabout yielding to other traffic in the roundabout.

It's just this, in circular format.
1

Last edited by notnamed; 08-27-2018 at 05:18 PM..
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 05:04 PM
 
8,272 posts, read 10,986,863 times
Reputation: 8910
We call them rotaries around here.

And they did away with both of them because of too many accidents.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 06:46 PM
 
9,877 posts, read 7,207,036 times
Reputation: 11467
A blue car entering from the top has to yield to traffic in the circle. If the red car coming in from the bottom is exiting at the 3rd exit, the blue car has to ensure that they can safely enter without impeding the red car.

It all works very well in the real world.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 07:16 PM
 
41,813 posts, read 51,039,086 times
Reputation: 17864
I can understand the efficiency of roundabout if all drivers are aware of the rules and are good drivers but that simply doesn't play out in life. Some people have enough difficulty merging left into highway traffic let alone them merging into a two laned circle with passing lanes.


Locally they have been putting some of these in and the complaints are already mounting. One actually made sense because it's 6 roads that merge at odd angles but other that they should of been just regular intersections. The one small city has square and that was roundabout of sorts going back decades but entry and movement around it was controlled by lights.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 07:34 PM
 
Location: Wasilla, AK
7,448 posts, read 7,585,099 times
Reputation: 16456
Quote:
Originally Posted by Labonte18 View Post
So, a blue car in the outside lane that is going straight, has to look behind him to see if a car in the inside lane is turning?

What's the point of saying that a car on the inside can't turn right then? If the outside lane has to yield.. Shouldn't matter.

Read how it works. If you're turning right or going straight, you should be in the right lane before you enter the roundabout. If you're going straight or turning left, you should be in the left lane before you enter the roundabout. So there should be no surprises once you're in the roundabout. The roundabouts here where I live have signs and road markings that indicate which lane you should be in as you enter the roundabout, based on your direction of travel as you exit.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 08:16 PM
 
37,608 posts, read 45,978,731 times
Reputation: 57194
Quote:
Originally Posted by Labonte18 View Post
Is the blue car entering from the top, even though they are in the outside lane, supposed to wait until all traffic in all lanes is clear before entering?

Of COURSE! How do people not know this??

I have never understood how anyone gets confused by these.
Reply With Quote Quick reply to this message
 
Old 08-27-2018, 10:25 PM
 
17,579 posts, read 15,247,745 times
Reputation: 22900
Quote:
Originally Posted by ChessieMom View Post
Of COURSE! How do people not know this??

I have never understood how anyone gets confused by these.

Ok.. So.. Car at top can't see a car coming their entry is clear.. Goes out. There's a car traveling much faster in the inside lane, or the car in the outside lane misses a shift.. Whatever.



By the time they get to the (counting from clockwise) 3rd exit.. The cars are basically equal with the car on the inside slightly behind the card on the outside. car on the outside is going straight, car on the inside is turning.


What's going to happen?



This all makes sense if the right lane is right turn only. But saying the right lane can turn or go straight.. Sooner or later, you get a combination where the left lane is turning and the right lane (outside lane) is going straight. This would be the basic "European Vacation" situation, where the inside lane is going "Look kids, Big Ben" 50 times.
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:


Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Automotive
Similar Threads

All times are GMT -6.

© 2005-2024, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Contact Us - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 - Top