[Talk-us] Minimum standards for motorways?

[Nathan Edgars II]

On Mon, Jan 3, 2011 at 9:06 AM, Paul Johnson <baloo at ursamundi.org> wrote:
> On 01/03/2011 05:14 AM, Nathan Edgars II wrote:
>> On Sun, Jan 2, 2011 at 10:43 PM, Paul Johnson <baloo-PVOPTusIyP/srOwW+9ziJQ at public.gmane.org> wrote:
>>> On 01/01/2011 09:45 AM, Nathan Edgars II wrote:
>>>> Yes - Seattle's Alaskan Way Viaduct. It seems like a clear motorway to
>>>> me, but a local has tagged it as trunk.
>>>
>>> Alaska has intersections on at least one of it's three decks, though.
>>
>> The lower level is Alaskan Way, a surface street. Above it are two
>> levels of Alaskan Way Viaduct, one in each direction. It's the second
>> and third levels I'm talking about here.
>
> Given that ramps into and out of the viaduct hit at nearly-right angles
> from out between buildings with no merging room, I'm not sure they
> really qualify as what one would expect in motorway quality ramps.

http://www.youtube.com/watch?v=ZeGUSMssl7k&t=0m15s
There's not much merging room (no worse than on many Interstates), but
it's nowhere near a right angle.