Questions tagged [surveying]

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Autocad- Aligning 4 corners to 4 different lines

To explain the situation, I am creating a site plan (using Autocad 2022), I have a building that is angled within a complex property. The 4 corners of the building are dimensioned to a property line(...
Markitect's user avatar
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Probable error (Area) [closed]

Calculate the area of the triangular tract of land and its most
Wiiip's user avatar
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Is there a standard for where treelines are drawn?

On surveys and site plans, I've often found treelines. These look like the below image, and serve to delineate in a very approximate way the areas full of trees and those that aren't: Is there a ...
Dan Getz's user avatar
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3 answers
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Comparing the precision work of plane surveying and geodetic surveying

In geodetic surveying, we consider the spherical geometry of the surface though the surface is not perfectly spherical. In-plane surveying, we consider a small surface area which is considered as a ...
AScientist's user avatar
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How maps of globe, country or region were created few decades/centuries ago when modern technology like today did not exists?

What techniques were used to create the maps of a world, country or region when satellite or similar technology did not exists few decades or centuries ago?
parag's user avatar
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Why is North considered the reference direction in Surveying?

While Surveying, the North is always considered the reference direction, for the purposes of mapping. I have specifically the following issues: The magnetic compass, has a least count of 30 minutes, ...
Indian's user avatar
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What is the most accurate geometry to represent earth

Currently software and maps represent earth in many different ways, the latest is Point Clouds as this is the most common surveying tools currently available. For the needs of visualisation, ...
Rott's user avatar
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1 vote
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Establishing DGPS Communications With SurvCE and Novatel Recievers

I am trying to do a differential surveying project with some outdated equipment, specifically: An old AllegroCX personal handheld computer (Win 4.1) with SurvCE loaded on it to collect data and ...
AggroCrag's user avatar
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5 answers
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What instrument does a surveyor use to accurately find North?

The obvious answer is a compass. I have an old (1952) transit that has a compass which seems to be accurate to 15'. However, that doesn't seem too incredibly accurate at all. Furthermore, most modern ...
canadianer's user avatar
13 votes
3 answers
18k views

What is a Spiral Curve, and How is it Different from a Normal Curve?

I've heard the term spiral curve used to describe a section of highway that is more aesthetically pleasing to the driver's eye. However, I believe I've driven on enough road to say that I can't ...
gate_engineer's user avatar
5 votes
2 answers
2k views

How many decimal places of GPS should be stored to be accurate within a few feet?

I'm building a software application that uses GPS for a purpose related to roads. I'd like to know how many decimal places of GPS data should be stored to provide measurements that are accurate to ...
noɥʇʎԀʎzɐɹƆ's user avatar
13 votes
3 answers
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Measuring longer distances with high accuracy

I am involved right now in the fabrication of steel structures on the order of 5-50 feet long. Presently, we measure these structures with garden variety commercial tape measures. Most of the time, we ...
Ethan48's user avatar
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7 votes
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763 views

How was surveying for maps done before lasers?

I understand that you can have a device with angular measurements for rotation and elevation, and use trigonometry to calculate the distances... but only if you have some distances to start with. How ...
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