“I need a tree survey”

1. “I need a tree survey” Jonathan Hazell 3 April 2013

2. Where else to start, but with the 3 Ds • Design • Define • Deliver “I need a tree survey”

3. Define • From my experience . . . • this can be a very complicated step • your client will need firm guidance • the process flow chart will be tortured • ensure that you end up as the data collector, not the data manager • take time to record what you will, and will not, provide “I need a tree survey”

4. Define • DDuration • E Evidence • F Finance • I Intention • N Need • E Equipment “I need a tree survey”

5. D Duration of survey exercise • cyclical, new, one-off, repeat • E Evidence required to deliver the brief • data fields, EPS, hazard assessment, mitigation, targets • F Finance available, for the survey or for remediation • lump sum, unit rate, Schedule of Rates linked to survey • I Intention of the outputs • asset management, budgeting, duty of care, work programming • N Need for the survey • consent, compliance, discharge a condition • E Equipment required, and available • pen and paper, hardware, software “I need a tree survey”

6. Design • From my experience . . . • start by looking the wrong way down the telescope • what outputs will be used/are required? • this will guide you toward the data that you need to collect and manipulate on your client’s behalf “I need a tree survey”

7. Design • D Details • E Extent • S Strategy • I Information • G GPS • N Names “I need a tree survey”

8. D Detail the outputs that will deliver the brief • PDF, report, SHP file, spreadsheet • E Extent of the survey • complete estate, trees that might influence • S Strategy documents • which existing enterprise-wide policies and strategies must be followed • I Information to be gathered or researched • absolute data, hazard assessment protocol, qualitative judgements, size classes • G GPS, GIS or A-Z • survey to use GPS or GIS enabled software, or pen, paper and the A-Z • N Names, authority and responsibility • individuals’ roles, post-processing, project manager, qualifications, team structure “I need a tree survey”

9. Deliver • From my experience . . . • this can be fraught • control is vital • a timetable is important • flexibility can be a strenght “I need a tree survey”

10. Deliver • D Data • E Employees • L Liability • I Information • V Verification • E Events • R Re-survey “I need a tree survey”

11. D Data set • complete, consistent, current; timely reporting • E Employees • equipment, experience, organisation, payment, qualifications, training • L Liability discharged by the survey • brief delivered, client fully informed • I Information update • how to ensure currency once works completed • V Verification or post-processing • what will be done, how will it be done, when will it be done, who will do it • E Events • how to treat extreme weather events as they arise • R Re-survey regime • consistency, evidence lead criteria, frequency, periodicity “I need a tree survey”