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ashton
@ashton
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Joined: July 21, 2010 4:18 am
Last seen: November 18, 2024 2:07 pm
Topics: 41 / Replies: 521
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RE: Low Distortion Projections and ITRF (long)

Businesses, including surveying businesses, data collector manufacturers, and software vendors, are generally quite a bit more fragile and subject to ...

12 years ago
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RE: My favorite subdivision plat

I became suspicious when a new subdivision next to where I used to live was named after the chairman of the development review board.

12 years ago
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RE: Likelihood of Incompetence +/-0.10 ft.

OK, if we hypothesize that the Texas rules cannot be rigorously enforced on the majority of monuments, and we are asking how a professional who wants ...

12 years ago
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RE: Likelihood of Incompetence +/-0.10 ft.

A related question is how could the standard be enforced. Looking at some guidance for control measurements, it would appear the typical pipe driven i...

12 years ago
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RE: Likelihood of Incompetence +/-0.10 ft.

A person competent with probability and statistics will understand that the slightest change in the requirement may lead to a change in the methodolog...

12 years ago
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RE: Using Differences in Two Repeats to Estimate Uncertainty

I used all 1000 values from each source. Each bin was 0.01 wide. The lowest bin was from -0.08 to -0.07. The highest bin was from 0.07 to 0.08. I used...

12 years ago
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RE: Using Differences in Two Repeats to Estimate Uncertainty

I wondered if it was really necessary to get values from a website, rather than just using a minor modification of what Excel provides. I know spreads...

12 years ago
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RE: Staking a line of longitude

After following the lines of investigation suggested above, you will probably find several plausible options. So I would be investigating the politica...

12 years ago
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RE: Expected Error in Survey Repeatibility

There are situations where an absolute position is more helpful than relative positions among marks. For example, if all your carefully set marks get ...

12 years ago
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RE: Saw this Math Problem on Facebook this Morning

The use of a * rather than a × indicate this is to be input to a computer (in some computer language) or a calculator. The result will depend on the c...

12 years ago
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RE: Repeatability of a Survey with RTK

OK, I recognize "expected value" as a probability term of art with a definite definition. For nicely shaped distributions, it would coincide with the ...

12 years ago
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RE: Repeatability of a Survey with RTK

There is something that bothers me about the original statement of the problem:"What is the most probable error that you will make in remarking the co...

12 years ago
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RE: Repeatability of a Survey with RTK

When ability to remember the right words to look up in the index of a statistics book fail, there is always virtual experimentation.Using Excel, defin...

12 years ago
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RE: Quebec

It's been around 8 years since I went to Montreal. You can use US dollars most places, but you might get a better rate if you use your debit card in a...

12 years ago
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RE: The GPS Dot: Privacy vs. GNSS Integrity

True, it's the cell phone that communicates your location to the voyeurs. Also, cell phones seem to still work in locations where GPS is not readable ...

12 years ago
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Replies: 0
Views: 3
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RE: How do you describe a dirt road

How do you describe a dirt road>Curious discussionMy guess would be the correct position of the boundary is the center line at the time the easemen...

13 years ago
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RE: How do you describe a dirt road

True about the difficulty of putting a monument in the center of a dirt road. However monumenting the edge of the right-of-way would allow the landown...

13 years ago
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Replies: 24
Views: 13
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