Trees in the Planning Process - Institute of Chartered ... · • Tree surgery schedule ......
Transcript of Trees in the Planning Process - Institute of Chartered ... · • Tree surgery schedule ......
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Trees in the Planning ProcessMerton College, Oxford
13 April 2018
Arboricultural Methods, Special Techniques
and Site Supervision
Sharon Hosegood FICFor FArborA BSc (Hons) Tech Cert (Arbor A)
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Arboricultural method
Statements
What are they and who are they really for?
What should you be looking for?
• Background - referencing the AIA and planning conditions
• Tree protection plans for each stage
• Tree protection specification
• Tree surgery schedule
• How works near trees will be carried out
• How the work will be supervised
• Key personnel and timeframe
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What to expect in a AMS –Tree protection plans
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What to expect in a AMS – Tree surgery
schedule and method statement
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Communication
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Special techniques for exploring
issues & working near trees
The main objective is to protect the crown, trunk and roots of trees to be
retained.
Protecting roots includes protecting soil, as well as the roots.
There are four main methods two of which are outlined:
- Root Protection Areas and gut feeling
- Trial pits
- Air spade
- TreeRadar
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What is it not great for?
• Noisy, messy and throws up dirt
• Affects the cambium and fine
feeder roots
• Difficult penetration in compacted
soils
• However- less invasive than
digging and, in good soil
conditions, relatively fast and
simple
Technique: Air spading
What is it great for?
• Finding the extent of a rooting
area, including fine roots
• Measuring root diameter
• Visually identifying roots between
species
• Finding decay and dead roots
• Root pruning
• Installing underground services
• Vertical mulching
• Being easy to understand
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Technique: Air spading for root pruning
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Technique: Air spading for vertical mulching
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TreeRadarTechnique – root exploration using TreeRadar
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Technique – root exploration using TreeRadar for a veteran tree near
proposed bypass
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Technique – root exploration using TreeRadar for a new structure &
dropped kerb
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Technique – root exploration using TreeRadar for a new
structure and dropped kerb
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Technique – root exploration using TreeRadar for a new
structure
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adfTechnique – demolition of structures and surfaces
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Technique – underground services (NJUG
4) using and open trenches. Other
techniques include underground moling
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adfTechnique – ground protection during demolition and
construction
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adf Technique – new hard surfaces
Considering levels and permeability
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The importance of team working and
site supervision
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Effective tree protection
Culture: understanding, respecting and influencing
Communication: listening, observing, relaying information
and soft skills
Clarity: avoiding jargon, tool box talks and use of visual aids
Control: enforcement action, health and safety and budgets
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Towards a new dimension:
Community collaboration
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