NGS Webinar Apr 25 on the fate of the US Survey foot
I think that NGS and Surveyors should be using the Meter or/and stay with the US Survey Foot. International foot will create more mess that system used now due mentioned by others small difference US Survey FT v. International FT. If we can't adopt more practical Metric System than we need to stick with US Survey Feet. Meter is already adopted in all surveying CAD, GIS, point cloud and least square adjustment software products so it is no cost to switch if needed. Also carpenters may use Decimeter = 1/10 of meters if they want smaller units for convenience. If we adopt now International Foot ("new" foot) then after 10 years we will have to adopt meter anyway, so double transition cost (double whammy). Maybe it is my bias opinion due to the fact I used meter 15 years ago in Europe.
About 20 years ago, Arizona decided they were going metric with their highway design. I don't know how many projects that they did in metric, but they did one here on State Highway 90, approximately 20 miles worth of new construction. That was the end of their going metric regarding highway design work and went back to the way it should be.
This country has almost 500 years of records based on the foot/pound and chain/link measurement system and has worked just fine. Why toss a monkey wrench into mix and make things confusing?
Another thing that shouldn't be done is to survey properties down onto a grid. People are buying what they see up here in the real world, not down on something they can't see or comprehend.
I never could figure out how grid bearings can be brought up on the surface when bring in ground distances. I shake my head on this. Things just don't work that way.
Watch the webinar. Going to all International Feet will not be painful. The states have to update their laws anyway, since all those that refer to US Survey Feet also refer to the outgoing NAD83. Survey Foot vs International foot really only matters when converting meter coordinates to feet, or importing state plane coordinates (with large false eastings, for instance) into CAD. Distance-wise the difference is 2ppm, which means that the difference is withing the measuring error of your instruments. You will never notice the difference when putting plans or legal descriptions on the ground (and if you do, just make the conversion like with rods or chains or whatever).
Straight meters everywhere would be best for our industry, but there would be a lot of friction in that change.
Why on earth should NGS be talking in terms of feet in the first place? Can't they make up their minds? They made the decision, years ago, I might add, that all positions and results would be reported in meters with the individual states mandating what ever foot they wished. NGS is a Geodesy organization and they need to stay within their lane, and let the rest of the world make their own decision as to the final form. they use on a day to day basis.