[Talk-us] United States Roadway Classification Guidelines

[Nathan Edgars II]

On Thu, Jul 29, 2010 at 9:40 AM, McGuire, Matthew
<Matt.McGuire at metc.state.mn.us> wrote:
>> Can you show me an area of the US that's tagged completely objectively?
>
> For example: Interstate 99 near Altoona, PA is coded (AFAIK appropriately) a motorway. Over the entire length of the Interstate, it looks like it serves a max average daily traffic of 37,000 vehicles per day (http://www.interstate-guide.com/i-099.html), which is equivalent to many "primary" roads.
>
> Given this volume, it is reasonable to imagine Interstate 99 was never built. Instead there is a four lane, at-grade highway. The road would still serve the same interregional travel purpose in the area network. It could have the same traffic volume. But it wouldn't be a motorway.
>
> Interstate 99 doesn't share other qualities of Interstates (traffic volume, Interstate Travel, connecting large cities) Therefore, the current classification of motorway is based on the physical quality of the road.

I know that motorway is based on physical characteristics. I'm asking
for an area where every road is tagged objectively.