Quote:
Originally Posted by rypinion
Which interchange in particular are you talking about?
At grade intersections as part of interchanges are quite popular in North America - they are called Partial Cloverleafs. They prevent the potential accidents where you have people leaving and entering the highway from the same lane (weaving).
http://en.wikipedia.org/wiki/Partial...af_interchange |
The cloverleafs with arterial roads (such as Portage Avenue, Pembina Highway and Main Street) should be converted to parclos to remove the weaving from the Perimeter, while the arterial road does not need to be free-flowing there. The only cloverleaf that needs to remain free-flowing is with Highway 1E (assuming Highway 1W is bypassed from Portage Avenue and Highway 75 is bypassed from Pembina Highway), and that should be done with additional flyover ramps.