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Roundabout Interchange
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Answers:

1.  Orange Co., CA - "The Orange Crush"

2.  It is in the Guiness Book of World Records
as the largest interchange in the world.

3.  It is where the Santa Ana (5), Garden Grove (22) and Orange (57) freeways
converge in Orange County. It provides 34 routes - including onramps and
offramps - for 629,000 cars a day, traveling in 66 lanes over 13 bridges.
Quiz #351
May 13, 2012
1. Where is this freeway interchange located and what is its nickname?
2.  What world record does it hold?
3.  How many routes intersect here,
including all roads, on-off ramps and flyovers?
TinEye Alert
You can find this photo on TinEye.com,
but the quiz will be a lot more fun if you solve the puzzle on your own.
Congratulations to Our Winners!

Daniel Jolley                Rachel Joy
Grace Hertz                Joshua Kreitzer
Shirley Hamblin                Diane Legere
Linda Herrick Swisher                Jim Baker
Sharon Martin                Debby Was
Angel Esparza                Rebecca Bare
Margaret Waterman                Don Draper
Dennis Brann                Claudio Trapote
Janis Martin                Robert Austin
Peter Norton                Rebecca Bare
Alan Lemm                Mike Dalton

Robert Edward McKenna
Quiz Poet Laureate
Comments from Our Readers
When I first looked at the picture I thought - no way I'm gonna get this one!

Then I read your questions and thought I'd google freeway "world record".  Not the
best results so I reversed it and googled "World Records" + "Freeway Interchange"  
Number one result was "Orange Crush Interchange - Wikipedia, The Free
Encyclopedia  
http://en.wikipedia.org/wiki/Orange_Crush_interchange

Then I went to Google maps and typed in Orange Crush Interchange.  There was no
result for that term so I deleted the word Interchange and searched for Orange
Crush. Selected the location in California and  zoomed into the freeway and
there it was!!!                                                                                        
Debby Was

*****
WOW! My head swims thinking about driving in this area! How does the GPS react? It
certainly doesn't look like any interchanges out here in the Midwest!!!!!!!!!!
                                                                                                     
Grace Hertz

N.B.  There wouldn't be 34 directions to go in some parts of the midwest.  Out by
you, it's north, south, east or west.  Ah, if only life were that simple here in LA.
                                                                                                          - Q. Gen
*****
I'm from Birmingham, England so no I'm not familiar with LA. I'm just very good at
using google. :-)                                                                                     
Rachel Joy

*****
No, I didn't recognize the interchange.  It took me a little longer than [a few] seconds
to solve  the quiz.  Even though the questions to the quiz weren't up until you sent your
email, the picture was visible and clickable on the forensicgenealogy home page early
this morning so I was able to start looking for the picture before everything got
uploaded (and I promise I didn't TinEye the pic).  As you indicated, the same thing
happened last week. I had figured out the location of your picture in London before the
questions were uploaded. Nonetheless, it is kind of fun to start working on the quiz and
anticipate what questions you might ask. I hope you get your uploading problem
straightened out. Keep up the good work.                                             
Daniel Jolley

*****
I used to live in LA so this picture screamed California to me.  The waterway didn't
resemble the LA River so I was leaning towards Orange Co.  I googled "busy
freeway interchange nickname" and the first two hits were "MacArthur
Maze" and "Orange Crush."  The first one was Oakland which
doesn't match the flat topography of the quiz pic.  I googled Orange Crush in Google
Images and there it was.                                                                
Shirley Hamblin

*****
Information from Wikipedia. I Googled highway interchange world records and found
it immediately.                                                                                   
Rebecca Bare

*****
Even though I saw the answer [on Facebook] on this I decided to solve it myself and
had lots of fun doing so. I was totally fascinated by the many many freeways with
such interesting configurations. I think I will stick to New England driving. I am sure I
would never find my way off the Orange Crush, probably lost
forever.                                                         
                                                         
    Margaret Waterman

*****
I had some difficulty doing this. Once I started searching the words highway and
interchange it helped. Most large cities in the world have highways that engineers have
designed skyward to enable a smoothe flow of traffic. It finally dawned on me that I
was searching for the king of interchanges and where else would that be recognized but
in the Guinness Book of world records. I found that the 2002 edition of the Guinness
World Records book cites this interchange in Orange/Los Angeles as the most complex
road interchange in the world. Wikipedia has a good description of this extreme
crossing of routes under its nickname, The Orange Crush. It forms the intersection of
34 different routes.I really was not certain, with this information, that the photo in the
quiz had been matched. Google images for the Orange Crush interchange did not appear
the same. What helped was finding the interchange on google maps. It offered the same
orientation as the photo, with north at  the top. I found the tell-tale clue was the W. La
Veta Ave which curves south from its east/west path just east of the Santa Ana River.
                                                                                                     
Don Draper
*****
This one yielded immediately to a Google search for "freeway interchange world
record".  The first hit was its Wikipedia article.                                    
Robert Austin

*****
I Googled highway interchange world records and found it immediately.
                                                                                                   
Rebecca Bare
*****
Freeway aint free when you are stuck on it or have to pay for it. Thanks for the hint; I
googled "world record freeway" interchanges and found contest answers as indicated
on attachment. It is sort of a full Y design freeway interchange. I used this term and by
river, but was not getting anywhere.                                                     
Mike Dalton
The Orange Crush
en.wikipedia.org/wiki/Orange_Crush_interchange

How Diane Solved the Puzzle
This was fun, I never tried to locate a road before.  Much quicker
than the other quiz [on Holborn, London].

Started by googling 'famous highway interchanges + loops'.

First selected a website that did a good job of explaining the different
intersections.
midimagic.sgc-hosting.com/ichange.htm which was on
online article titled 'Common Interchanges and Common Practices to
Select Them'.  Learned more about interchanges than I realized was
available!

From the sources this article used, I selected a link to 'Kurumi's Field
Guide to Interchanges'.
www.kurumi.com/roads/interchanges/index.html another fascinating
site that tells you everything you could ever want to know about
interchanges.  

From the sources of this article, I selected a link to 'Open Directory:
Interchanges (DMOZ directory)
www.dmoz.org/Recreation/Roads_and_Highways/Interchanges/
which led me to another list of sources and I was lucky enough to
select the
last one, 'Where Roads Meet'
whereroadsmeet.8k.com/ and selected
the Interchange Index by state and started to go through each state
starting with AL.

Luckily I found the interchange at the beginning of the alphabet, CA!  
The same picture was on the site on the page:
http://whereroadsmeet.8k.com/Interchange/ca-i5-s22.htm

en.wikipedia.org/wiki/Orange_Crush_interchange

There are 34 Routes, 66 lanes and 13 bridges.  629,000 use the
interchange each day.
clui.org/ludb/site/orange-crush-interchange

Diane Legere
**********
**********
Google Satellite and Map Views of The Orange Crush
**********
The Orange Crush Interchange is a freeway interchange in the city of Orange,
California, near the confluence of the cities of Orange, Santa Ana, Anaheim, and
Garden Grove. The Disneyland Resort, The Block at Orange, St. Joseph Hospital,
Children's Hospital of Orange County, the UCI Medical Center, Westfield MainPlace,
Angel Stadium of Anaheim, Honda Center, and the Platinum Triangle are all located at
or near the interchange. The name of the interchange, credited to KNX Radio traffic
and weather reporter Bill Keene, is a play on the name of the soda.

The interchange comprises five freeway segments (i.e. there are five freeway 'paths' of
travel into the complex) of three major highways:

I-5 (Santa Ana Freeway) – Los Angeles, Santa Ana, San Diego
SR 22 (Garden Grove Freeway) – Long Beach, Garden Grove, Orange
SR 57 north (Orange Freeway) – Pomona

The 2002 edition of the Guinness World Records book cites this as the most complex
road interchange in the world, stating that it is an intersection of 34 different routes,
when taking into account collector/distributor roads, surrounding on- and off-ramps
(such as Bristol Street/La Veta Avenue, Broadway/Main Street), and direct carpool-to-
carpool flyovers. Adding to the complexity is that of the five possible directions to enter
the interchange, entering eastbound on SR-22 is the only approach that allows motorists
to exit the interchange in all possible directions of travel. This is a result of the acute
intersecting angles of SR-57 and I-5, as well as the fact that the interchange is
approximately 3 miles (4.8 km) from SR-22's eastern terminus at SR-55, which also
intersects I-5 several miles south of the Orange Crush.

In addition, although it is not a vehicular road, the Santa Ana River coincidentally
crosses I-5 at the Orange Crush area, forming a large "X" visible from space imagery in
the heart of Orange County. Its bike path offers bicyclists an alternative route through
the Orange Crush, avoiding signals backed up with vehicles getting on or off freeways
there during rush hour. Normal traffic is exacerbated during game times for the Angels
or Ducks, whose home stadiums lie in very close proximity to the Crush.
**********
Pics of the Crush
Westbound on the 22 looking north along the 5 and 57.
Northbound on the 5 near the intersection with the 57.
Traveling northbound on the 5 passing under the 22.
**********
**********
Some Types of Freeway Interchanges
midimagic.sgc-hosting.com/ichange.htm
This type of
interchange has
one large
roundabout
spanning the
freeway on two
bridges. The
crossroad then
connects to the
Two Quadrant Partial Cloverleaf
Interchange
Where there is
relatively low
traffic, but either
a route turns at
the interchange,
or there is a
restriction that
prevents ramps
from being built
in one or two quadrants, a partial cloverleaf
(parclo) interchange is used. It has the
function of the diamond interchange, but
some of the ramps are bent around so they
fit better. This is also sometimes called a
folded diamond interchange. Again,
acceleration and deceleration lanes are used
on the freeway, and intersections are used
on the crossroad. Notice in this picture that
a shopping center driveway shares the
intersection with two of the ramps. If only
one quadrant is restricted, the interchange
can be a parclo on one side of the freeway
and a diamond on the other side. Or if
diagonally opposite quadrants are
restricted, the parclo ramps can be in
diagonally opposite quadrants. And any of
these variations can be fitted with dumbbell
interchange roundabouts.
roundabout. Entrance and exit ramps also
connect to the roundabout, making a
complete interchange. It is sometimes
called a table interchange.

The almost continuous flow is the major
advantage of the roundabout interchange.
The major disadvantage is the cost of
building two curved overpasses.

This roundabout interchange is at the
junction of US-9 and MA-2 in Latham New
York. It was redesigned from an old-style
traffic circle to an efficient modern
roundabout. This roundabout interchange
also has turnbacks on the ramps, because
the ramps also connect to frontage roads
serving local businesses.
roundabout. Entrance and exit ramps also
connect to the roundabout, making a
complete interchange. It is sometimes
called a table interchange.

The almost continuous flow is the major
advantage of the roundabout interchange.
The major disadvantage is the cost of
building two curved overpasses.

This roundabout interchange is at the
junction of US-9 and MA-2 in Latham New
York. It was redesigned from an old-style
traffic circle to an efficient modern
roundabout. This roundabout interchange
also has turnbacks on the ramps, because
the ramps also connect to frontage roads
serving local businesses.
Diamond Interchange
Where there is
relatively low
traffic (which is
still usually
higher than the
capacity of a
traffic light), and there are no restrictions
on room or real estate cost, the diamond
interchange is used, because it is the
cheapest complete interchange to build.
Each entrance or exit consists of a
one-way ramp, connected by an
acceleration or deceleration lane at the
freeway, and an intersection at the
crossroad. A diamond interchange is
shown at the right. Its name comes from
its shape.

The diamond interchange has two main
uses. One is to replace a traffic signal
intersection that is overloaded. The other is
to provide needed access between
Interstate highways and minor roads (since
intersections are prohibited by law on
Interstate highways). It is the easiest
interchange to build.
**********