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Gross errors in measurements will manifest themselves in a traverse misclose. These gross errors are typically a distance and/or bearing error. How would you identify individual bearing and distance measurement errors by analysing a traverse misclose.
This Content Originally Published by a land surveyor to Land Surveyors United Network
I can offer one method of reducing error while traversing in the field - a low, stabile prism will keep residuals low and errors within budget. One way to do achieve these repeatable results is by using The Marksman Prism Tripod, a product specifically designed for accurate measurement which can be used with any type of prism for Total Station measurement. Check out www.themarksman.ca
Most of my work was relative to engineering surveying which included setting up of and monitoring control. All these points were initially set up by GPS and then Traditionally traversed in for greater precision. I wouldn't leave site unless I new everything that I had established was right. I too used to use programmable calculators (Ti 83 to be more precise) but then I discovered the power of Android (Not MS) which has a better visual affect and all the data can be sent out via the internet for further processing if needs be.
Just about everybody carries a mobile phone around with them these days.
Unfortunately a lot of the work I did was night shifts, i.e Road Closures, Tunnelling, Bridge and Gantry work where survey and setting out during day time shifts was sometimes impossible. I'm not saying what I'm doing with mobile phones is the best thing since sliced bread, I've just put it out there as another alternative. Something that's always at hand if needs be. All the software that you use on your desktop Charlie could be re- written to go on a mobile phone either as a native app or cranked onto a server and run as a web app. The only thing restricting mobile phones these days is the screen size. The last instrument I used (About 10 years ago now) was the Leica 1200 series and even then that was configured for uploading CSV files and had Bluetooth built in. MS Office is now available on mobile phone's and Bluetooth is a function that is considered quite old, but you could in reality interface your mobile phone with instruments for data exchange. I've got a feeling that this has been the case for sometime now?
Thanks for taking the time to give me some feed back Charlie.
This has been a very interesting and helpful discussion to read! I am a 4th year geomatics student and currently studying the Least Squares method. Thanks!