May 19, 2009
A Field Guide to Highway Interchanges - which one is your favorite? I think Austin and Houston have a lot of the "stacked" varieties. Of course I had never seen this "frontage road" concept outside of Texas (except very limitedly)...I wonder if we could use more Lofthouses or Spooeys.
The Braid, the 95/695 interchange on the north side of Baltimore, is pretty cool, and like they say, really rare. The photo they have is the interchange undergoing an expansion for hot lanes. It will have left and right off ramps AND on ramps north south east and west. It ups the stacking by at least two levels, and the complexity by a factor of about 4. However, they managed to maintain the original symmetry of the entire interchange. It will end up looking like a complex flower from above. Anyway, I commute through it every day.
But not for long, the Aberdeen job is complete http://www.baltimoresun.com/news/local/harford/bal-md.ha.gate11may11,0,6223844.story and I am off to Tyson's Corner VA to work on Metro.
What would you call the colossal disaster where 360, 290, MoPac and 71 all intersect at a point in southwest austin?
The intersection of MoPac & 360 is pretty much a diamond, but stretched apart into a teardrop shape and with an extra ramp on the left from south on MoPac to SE on 360.
The intersection of 360 and 290/71 (and Lamar) looks like the full Y but with Lamar coming in on the side.
The intersection of MoPac and 290/71 is sort of a stacked intersection.
You can always tell how old the Google maps satellite images are by the missing highways. There's a big section of MoPac missing in the image between 290/71 and south of William Cannon Dr.
495 on Long Island has frontage roads. Except They call them "service roads" there.
Tyson's metro? Should be interesting.
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Also, what do you call 35th St. at Mopac? The Crippled Cloverleaf?
posted by natedogg at 04:17PM CST on May 19