Video Timeline Guide: 00:00 Introduction. 00:31 Surveying field book table for recording. 00:38 Table difference between HOC and Rise and Fall. 00:53 The instrument needed for the levelling (Auto Level). 01:02 The difference between Auto level and dumpy level. 01:10 Auto level, surveying tripod stand, survey levelling staff or rod. 01:30 Plumb bob in surveying (what it's used for). 01:55 What is surveying benchmark (How to identify site benchmark). 02:44 GPS and GIS with site benchmark. 03:23 How to record surveying field data. 03:27 How to record the benchmark values on table. 03:43 What is Backsight in surveying and how to record backsight. 04:31 What is Intersight (intermediate sight) in surveying and how to record intersight. 05:30 What is a foresight and how to record foresight. 09:42 How to read the cross hair in surveying. 10:38 Staff or rod movements and points to measure. 10:53 Manhole, marked points on site, curbs, gutters, permanent site structures, etc. 11:59 Foundation setting out with theodolite, total station or measuring tape. 12:11 Difference between a total station and a theodolite. 12:20 Purpose of levelling in surveying. 12:50 How to calculate levels using height of collimation. 19:33 How to check for Height of Collimation with formulas. 19:43 Sum of backsight and foresight. 20:15 Last reduced level minus first reduced level. 22:51 How to calculate levels using Rise and Fall methods. 31:13 Formulas for checking the accuracy of rise and fall in surveying. 34:31 Conclusion of Height of Collimation and Rise and Fall surveying.
This video was made for people like me with no background. Sir i really do appreciate mostly on how to read the staff and filling the table. May God continue to lift you up
Hi Kelvin. This video "saved my life". I last did this at university almost 20 years ago and I am teaching this course to Architecture Technology students this year. You can imagine! Thank you very much. Your illustrations are clear and straight forward.
Watching from Zambia is video just made me understand the explanation that a so call land surveyor lecture here explained for 2hrs and yet no one understood 😅. Thank you 👏👏
best tutor . God bless you. your lecturing help me. i wish am close to you. by the way please load more videos on surveying for me especially basic level. because am beginner
Wow thank you brother...this was the best explanation I saw so far.I feel its a concept which requires a thorough explanation.And even nearly all videos I saw did not explain what these headers like Fs Hoc and Rl mean in detail thanks
This site is very amazing and is helping cleared most of us doubt with respect to site surveying and congratulation for this knowledge shearing program. Regarding the first step for the last level calculation, please note that the reduce level is 86.846 instead of 88.846.
Talk to a practicing surveyor in the area, or visit the engineering survey office of your local council. If there are no national established control points, then there will be Temporal Benchmarks or some sort of recognized secondary or tertiary control networks.
please to have complete videos for beginners' i mean level 100 students cause i dont understand what what lecture is teaching so if you have please leave link behind