Hi Bill,
The temptation is always there to offset the RPA and I'm sure that we have
all tweaked them on the odd occasion. The bit in brackets of Section 5.2.4
a) of the standard says:
"For individual open grown trees only, it may be acceptable to offset the
distance by up to 20% in one direction)."
What is your interpretation of that. Is the tree in the central
reservation open grown if there are no other trees close to it. I, maybe
incorrectly, always understood it to mean open grown trees with equally
rootable soil in all directions.
Regards
Luke Steer
Chartered Forester - Arboricultural Consultant
Treescapes Consultancy Ltd.
Melbourne
17 Millans Park
Ambleside
Cumbria
LA22 9AG
Tel/Fax: 015394 34698
Mobile: 07734 113964
Email: luketreescapes@xxxxxxxxxxx.com
Andersonarb@xxxx.com wrote:
In a message dated 27/02/2008 18:58:36 GMT Standard Time,
mjc@xxxxxxxxxxxxxxxx.co.uk writes:
But
when the RPA is set on the TCP, it stays where it is. It cannot be modified
to accommodate a proposed layout. If the layout encroaches the RPA, the
layout must accommodate the RPA, not the other way around.
I appreciate your sentiments Mark but the offset rule is the flexible bit,
surely. You set off with it being in the middle of the circle but then can
nudge that around depending on the sites other constraints. We don't know
what
these might be, the designer has to deal with that.
Even if you've got Richard Nicholsons hypothetical tree in a central
reservation, where two of the RPA boundaries are set in concrete you can
still
jiggle the other two limits 20% either way. Notwithstanding it's probably an
R of
course.
Bill.
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______________________________________________________________________
South Oxfordshire District Council is looking for a Tree Officer on Grade
6, £28,506 - £32,569 per annum (as from 1 April 2008), plus essential user
car allowance. To find out more or apply online, log on to
www.southoxon.gov.uk/jobs where you can look at and download all the job
details and our application form (we don't accept cvs). Alternatively
please call Caron Bourton on 01491 823424 for a job pack.
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