Diverging Diamond Interchanges (DDI)

[spikerS]

Just saw this, and I am actually really liking the idea. A lot more than traffic circles since so few people know how to use them properly..




Are there any of these in Canada? I wouldn't mind checking out their effectiveness here.

[speedog]

162nd Avenue and Macleod I believe is the first one in Calgary. First in Canada as well.

[HiTempguy1]

The only way this makes sense is with upper and lower overpasses to allow free flow through the diamond. Otherwise, I don't see it making much difference overall.

[dirtsniffer]

? One of the roads will be completely free flowing. And most of the traffic in the case of 162 and macleod will not stop and only a portion would stop at a light. 2 light stops won't e common. Great idea.

[pheoxs]

Originally posted by HiTempguy1
The only way this makes sense is with upper and lower overpasses to allow free flow through the diamond. Otherwise, I don't see it making much difference overall.

It reduces the number of lights from 4 to 2 and it also eliminates the problem of left turning traffic backing up against the third light.

Lets take 16th ave and deerfoot as an example. Coming westbound trying to turn south onto deerfoot, often you sit at a green light unable to turn left because traffic is waiting for the red light to cross the eastbound lane.

With this traffic can flow freely directly onto the ramp and no backlog.

[Gestalt]

City is not interested in traffic flow, only traffic easement

[max_boost]

Really cool. When is 162 expected to be done?

[speedog]

lmgtf...

Oh never mind.

[eglove]

Jeez... isn't there a thread talking about this for the last two years or so??

[HiTempguy1]

I now see that and you guys are right. Ma bad!

[ExtraSlow]

Originally posted by HiTempguy1
I now see that and you guys are right. Ma bad!

I think this may be the first time you've ever admitted to being wrong. Such personal growth, sniff, makes me proud . . .

[bjstare]

Originally posted by HiTempguy1
I now see that and you guys are right. Ma bad!

[HiTempguy1]

Originally posted by ExtraSlow
I think this may be the first time you've ever admitted to being wrong. Such personal growth, sniff, makes me proud . . .

Originally posted by cjblair

[ExtraSlow]

[Xtrema]

Originally posted by speedog
162nd Avenue and Macleod I believe is the first one in Calgary. First in Canada as well.

Suppose to be done this month?

NVM, Fall 2017.

http://www.calgary.ca/Transportation...terchange.aspx

[asp integra]

interesting

[jwslam]

Originally posted by Xtrema
video

What is the cross traffic car (GMC Jimmy?) doing at 2:41... Assuming it ran a red?

Also, 162 WB to Shawville South (4:45). Imagine how many people don't know to get into that barriered left turn lane, and try to force their way into a left turn from the through lane

[Masked Bandit]

Because I live & work in this area we use this intersection all the time. I'm looking forward to the new configuration coming online.

[NoPulp]

hmm interesting.


I'm probably the only one that noticed a sn95 at the 2:40 point

[bjstare]

That intersection looks fantastic.