Point Nemo of Interstates?

[corco]

I think you are confusing shape preservation with distance preservation. Those aren't the same thing. To maintain shape, you have to distort both distance and area. Mercator is a conformal projection, though exaggerated- and while it does show dhape accurately, area and distance are way distorted, and just by looking at a Mercator you can see that you wouldn't want to use that for this sort of analysis.

Here is a link to what I am talking about:
www.pasda.PSU.edu/help/projection.asp

[vtk]

I think you are confusing shape preservation with distance preservation. Those aren't the same thing. To maintain shape, you have to distort both distance and area.

No, I am not.  I understand that distances are "distorted" on a conformal projection.  But they're distorted by the same amount in every direction in any given neighborhood on the map; in other words, it's a simple error of scale.  (Yes I know I oversimplified that last statement.  I'm talking about infinitesimal neighborhoods in the mathematical sense.)  Finding the location of "nemo points" involves comparing distances in different directions, and a change of scale does not change the position of the nemo point.

[mcdonaat]

Vidalia, Louisiana - 71.5 miles from I-49, 71.9 miles from I-20, 64 miles from I-55.

I thought about the deepest swamps of Louisiana, but the furthest spot with a road was only 45 miles from I-310 in Boutte.

[hotdogPi]

Vidalia, Louisiana - 71.5 miles from I-49, 71.9 miles from I-20, 64 miles from I-55.

I thought about the deepest swamps of Louisiana, but the furthest spot with a road was only 45 miles from I-310 in Boutte.

What about the mouth of the Mississippi River?

[mcdonaat]

Vidalia, Louisiana - 71.5 miles from I-49, 71.9 miles from I-20, 64 miles from I-55.

I thought about the deepest swamps of Louisiana, but the furthest spot with a road was only 45 miles from I-310 in Boutte.

What about the mouth of the Mississippi River?

No roads leading right into the mouth of the Mississippi. However, I'm seeing 70.8 miles from the nearest Interstate, I-910, in Gretna, along a winding road. That's from the southern terminus of LA 29.

[roadman65]

Venice, LA is over 70 miles from I-910.  That is the furthest south you can get to the mouth of the Mississippi River by road.

[mcdonaat]

Should we use I-910, then, if it's an unsigned Interstate? If not, it's at least 75 miles from I-10's curve at the 'Dome.

[tidecat]

If you exclude future I-66 in Kentucky, which is currently the Cumberland Parkway, it should be roughly near the intersection of 2 lines: one from I-75/64 in Lexington to the downtown loop in Nashville, and the other line from I-265 on the southeast side of Louisville to I-75 near Knoxville.  This should put it somewhere near Campbellsville.

If you count the Cumberland Parkway as an Interstate, it should be somewhere southwest of Danville.

You may get a similar result somewhere west of Pikeville (I-64, I-75, I-77, I-81), but that will fall away if I-126 is extended further, or if I-66 ever makes it into eastern Kentucky.

[KEVIN_224]

For Connecticut, I'd guess either northern or northwestern Litchfield County. Look for the center point of the "doughnut" (if applicable) that's north of I-84, east of I-87, west of I-91 and south of I-90.

[jp the roadgeek]

Rhode Island would have to be either Block Island, or Sachuset Point in Newport.  NY state would have to be somewhere around Massena (the center point between I-87, I-90 and I-81).  New Jersey is Cape May.  Delaware is Fenwick Island at the MD line, which would be about the same for MD (take the midway point between I-95 in DE and I-64 in Norfolk along the Delmarva).  New Hampshire is the point where NH, ME, and Quebec all meet.  Maine is somewhere out in the Allagash.  For PA, it's somewhere near Wellsboro (I-79, I-81, I-80, and I-86 as the boundaries), although that will shift somewhere west of Coudersport once I-99 is signed along US 15 up to Painted Post.