Quote:
Originally Posted by ken0042
I guess they have done their homework on this from other cities. If you notice, the bottlenecks are where there is weaving. Take Southland and Anderson. If you could get the people exiting onto Southland to exit before the people at Anderson exit, you would have two sets of "off" exits followed by one "on" entrance. Even though Deerfoot narrows to two lanes there, it would flow much better.
Also look at larger cities where they have metered onramps. The point being to limit the number of cars going on, to make the overall merging easier.
Another point, NB Deerfoot gets better right after 64th in the afternoons. You could make the argument that most people have exited by then, but 64th isn't a very busy interchange and the number of cars exiting is less than the previous exits. The point that works is there isn't another onramp until Airport Trail; which is 3.6 km away. Beddinton doesn't count as there isn't an onramp NB.
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Sticking with the 64th example, there's a large volume of vehciles entering NB Deerfoot from McKnight, and they don't have enough room to merge onto the heavy amount of traffic on Deerfoot at the posted speed limit. This creates a bottleneck.
I think one of the short term solutions to this is to make the on ramp turn into a new lane altogether, that turns off onto 64th ave exit.
http://www.calgary.ca/Transportation...rect=/deerfoot