Split Milwuakee B Interchange

[tradephoric]

Does an interchange like this exist?  I'm calling it the Split Milwaukee B interchange as it resembles a Milwaukee B but just inside the median of the arterial.  Here is a Synchro model of the interchange in action.

https://www.youtube.com/watch?v=HFlo90vZxmM

[Brandon]

That might work well when combined with service drives instead of just a plain interchange.

[tradephoric]

Here are some of the benefits of the Split Milwaukee B Interchange:

1.  Flyover ramps are not needed as the loop ramps use the arterial bridge decks.
2.  Pedestrian exposure is minimized as all of the freeway's off-ramps are contained inside the median of the arterial street. 
3.  Traffic signals are simple 2-phase signals that only stop one direction of traffic along the main arterial.  Arterial traffic moves much smoother in this design compared to a DDI. 

While this wont fit at just any interchange, this does become a practical alternative when you consider the massive DDIs that Florida is starting to build.  Below is the required footprint of the Split Milwaukee B interchange juxtaposed over the University Parkway DDI built in Florida.  As long as you can spread the arterial street about 600-700 feet apart (IE. the yellow lines), this design could work. 





 

[NE2]

http://www.arizonaroads.com/urban/papago.html

[kphoger]

http://www.arizonaroads.com/urban/papago.html

Your ability to dig up historical information never ceases to amaze me.

[Anthony_JK]

Why would this work any better than a classic slip-ramp diamond with Texas-style U-turns, or a split diamond interchange?


Or, for that matter, a displaced left turn diamond using one-way parallel frontage roads along the freeway?