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RURAL CADASTRAL SURVEYS BEST PRACTICES CHALLENGES Neville L Brayley 28 th March 2008

RURAL CADASTRAL SURVEYS BEST PRACTICES CHALLENGES Neville L Brayley 28 th March 2008. A Definition of Re-establishment.

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RURAL CADASTRAL SURVEYS BEST PRACTICES CHALLENGES Neville L Brayley 28 th March 2008

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  1. RURAL CADASTRAL SURVEYSBEST PRACTICESCHALLENGESNeville L Brayley28th March 2008

  2. A Definition of Re-establishment • A cadastral re-establishment is the process of deduction from a field survey whereby part or all of an original survey is, as nearly as possible, within practical limits, re-established in relation to artificial features, such as survey pegs and other survey marks, fences, building corners which may be extant or may be traced through a chain of recent surveys. …con’t

  3. …reliable re-establishment may be effected beyond the bounds of conjecture… …con’t

  4. When re-establishing these titles, the Surveyor is obliged for his own protection to make an extensive survey of perhaps a whole section picking up all existing occupation in order that a comprehensive picture may be obtained…

  5. Rural Survey Issues • The scale or size of the survey. • The frequency of having to consider Crown Boundaries. • The topography of the land. • The original vegetation status of the land. • Date of alienation. • Age of the old survey. • Longevity of monuments. • Irregular boundaries. • Railway boundaries. • Durability of fencing material. …con’t

  6. Rural Survey Issues • The old Field Notes. • Crown Surveys. • The long Govt. Road alignment. • Un-surveyed boundaries. • Current Record Plan. • Soldier Settlement Surveys. • Large excesses. • Many sided and irregular allotments. • Time between surveys. • Rugged terrain and heavy bush • Road alignment fences. …con’t

  7. Rural Survey Issues • Wildlife and farm stock. • Vehicle access. • Communication. • OH & S.

  8. Old Equipment & Methods • Gunter’s Chain. • Steel band. • Circumferenter. • Theodolites. • Log tables. • Ranging. • Chainages and offsets. • Offsets only. • Classification of surveys as E5.

  9. Survey Search • It is vital that ALL survey information • be obtained. • This includes a recent title search

  10. Arriving at the Job • You will start to build up a picture • of how the fieldwork will progress.

  11. Morning Tea • Take the time. • Let stuff sink in. • A plan will evolve.

  12. Fieldwork • At the end of the day, it is the assistant’s job to make sure that all the equipment is in the vehicle. • It is your job to make sure that all the required information is in the field book and data recorder.

  13. Occupation • Draw the occupation in the field correctly,carefully and thoroughly. • Describe the occupation in the field correctly,carefully and thoroughly. …con’t

  14. Occupation • Estimate both the fence AND corner post ages. • A digital camera can provide useful memory joggers. …con’t

  15. Occupation • The old surveyor showed road widths of 100 links. What he means is 1 chain (ish).

  16. Reference Marks • The priority for the location of these should be their • longevity, NOT whether they are in good spots for • use as instrument points.

  17. Equipment • Always: read multiple faces of angles, obtain several distances (from either end of the traverse line), take offsets, check chain between things, use two base stations if using GNSS equipment. A single face, one distance radiation needs to be checked. • Check everything. Leave nothing to chance.

  18. Instincts • Trust your instincts – if you “feel” something is not quite right it probably isn’t.

  19. Office Stuff • Often, twisted, distorted, obscure, time consuming, horrible, hard to read and tricky mathematical gymnastics are required on old field notes to work things out. • You have NO choice, you must do them.

  20. Datums • Be exhaustive, not just thorough, in re-establishing your datums. • There is no such thing as a survey that went too far, or picked up too much data.

  21. Surveyor’s Report • This is the most important document you produce for the next surveyor.

  22. Abstract of Field Records • Present all information clearly, unambiguously and correctly.

  23. Responsibility • You should be able to look back and see that you are a better surveyor than you were a year ago. • This process never stops.

  24. Auditing of Surveys • The latest statistics in “Traverse” suggest that over the last 6 years, the average number of satisfactory audits is about 77%. • Practically 1/4 of audited surveys do not achieve compliance.

  25. Finding Mistakes in Your Work • You develop a horrible sinking feeling. • A feeling of impending doom descends on you. …con’t

  26. Finding Mistakes in Your Work • To rectify the problem, re-draw plans and Field Records, ring the client etc, may take you a day or two, but you will have success. …con’t

  27. Finding Mistakes in Your Work • To get rid of the stigma of being a poor, lazy, inept surveyor may take your whole career, and you might fail. …con’t

  28. Finding Mistakes in Your Work • You are not a fool if you make a mistake. • But you are a fool if you don’t find and fix it.

  29. Getting Rattled • Don’t compromise your professionalism.

  30. A Cadastral Surveyors Creed Do every survey to the absolute best of your ability. Be diligent, thorough and proud of the result. No-one can then challenge your decisions! Any subsequent defense of your survey in a Court of Law will then look after itself.

  31. Quality Control • Don’t compromise your professionalism

  32. Challenges • Openly discuss: • Techniques • Accuracies • Philosophies • Efficiencies • etc.. …con’t

  33. Challenges • Be accountable. • But remember to find the balance. • Profession. • Client. • Workplace/employer. • Family. • Community.

  34. Related Challenges • Grid to ground comps and scale factor. • MGA94 co-ords • Crown Boundaries • RE Plans. • Guidelines for Surveys needs to be updated to reflect modern equipment and techniques. • Practice Directives. • Surveyors (Cadastral Surveys) Regulations. • The audit process. • The Registration process. • Be proud to be an expert in a specialized field. • R & D. …con’t

  35. Related Challenges • Who is going to drive these challenges and changes? • Not anyone over 50, maybe not even 40. • Prove to the community that we have the professionalism to regulate ourselves. • You will not only enjoy the ride, but you will command enormous respect. • I envy what you can bring to the profession, and where you could take it. Exciting times.

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