Quote:
Originally Posted by CoryB
Pretty sure 101/190 is what the kids call a parclo. A true coverleaf has traffic entering the flow and exiting the flow share a lane. This is especially dangerous as you have acceleration and deceleration occurring in the same physical space. The parclo mostly moves them to their own spaces although south bound 101 has west traffic entering and south traffic exiting sharing a space.
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I'm no engineer, but I didn't think having a separate lane to access the ramps and weaving lanes disqualified an interchange from being a cloverleaf. I thought a parclo was a cloverleaf that had some of the elements (like loop ramps) missing... Pembina/Bishop Grandin being a good example.
If you look at an aerial view of 101/190, it's clear that most of the elements of a cloverleaf are there... the SB to WB and EB to SB ramps are graded in. The only thing that's missing are the NB to WB and EB to NB loop ramps, although there is clearly enough room for them to be added.