UKTC Archive

RE: Windshield/Drive-by | Speed Limit Bankruptcy

Subject: RE: Windshield/Drive-by | Speed Limit Bankruptcy
From: Simon Jones
Date: Dec 03 2019 19:11:09
In the past I have done drive-by tree risk assessments on roads, but not 
using cars, using mountain bikes. So properly, “ride-by” assessments. This 
was significantly quicker than walking would have been, and significantly 
more thorough than driving.



Probably uneconomic on long stretches of Tasmanian highway, but for urban and 
suburban roads, I found it effective. Compared to a car it is slower, but we 
found we missed less, it didn’t need a driver, so reduced labour costs, it 
was easier to pull over when something about a tree suggested it would be 
prudent to look closer, and with trees in wide verges, we could specify a 
360° cycle round of the trunk. I remember we found more than one tree with 
defects or fungal fruiting bodies on the other side of the trunk, not visible 
from the road.



I haven’t seen any mention of bicycles in this interesting thread: is this 
because it’s been tried and discounted for good reasons I’m unaware of, or 
because we’ve all just been thinking cars? I’m inclined to think that in some 
circumstances, there would be an economic case for ride-by assessments. After 
all, how many miles a day can a fit man on a bicycle cover? Twenty? More?


Kind regards,

Simon

Simon Jones
Director

[cid:image002.jpg@01D5AA0D.5E20C3C0]
ARBORICULTURAL PLANNING CONSULTANTS

Surrey:  01737 XXXXXX
London: 0207 XXX XXXX

E-mail: simon@xxxxxxxxx.co.uk<mailto:jeff@xxxxxxxxx.co.uk>



-----Original Message-----
From: 
uktc-request@xxxxxx.tree-care.info<mailto:uktc-request@xxxxxx.tree-care.info> 
<uktc-request@xxxxxx.tree-care.info<mailto:uktc-request@xxxxxx.tree-care.info>>
 On Behalf Of Julian Morris
Sent: 03 December 2019 14:20
To: UK Tree Care 
<uktc@xxxxxx.tree-care.info<mailto:uktc@xxxxxx.tree-care.info>>
Subject: Re: Windshield/Drive-by | Speed Limit Bankruptcy



3700 miles x 2 sides = 7400 frontage miles. If 5 miles a day on average could 
be done by an inspector on foot, that works out as 1480 days, and based on 
250 working days a year that's a full time job for 6 inspectors a year. c. 
£200k. Not quite bankruptcy. Especially compared with the cost of one 
negligence fatality a year.



Julian A. Morris - Professional Tree Services jamtrees.co.uk  and  
highhedgesscotland.com

0778 XXX XXXX - 0141 XXX XXXX





Sent: Tuesday, November 26, 2019 at 10:42 AM

From: dlj@xxxxxxxxxxxxxxxxxx.com<mailto:dlj@xxxxxxxxxxxxxxxxxx.com>

To: "UK Tree Care" 
<uktc@xxxxxx.tree-care.info<mailto:uktc@xxxxxx.tree-care.info>>

Subject: Re: Windshield/Drive-by | Speed Limit



To have a look at the back of every tree that could fall onto the

highway could bankrupt the state government.



Really?



OK, you have an unusual situation of low population density and long

tree lined roads but even so your conclusion that walk by rather than

drive by tree assessment could "bankrupt the Government" seems like a

bit of a stretch, to me.



Hey, just thought of something.



What about Google Earth "Fly By" assessments?







On 2019-11-25 20:05, David Evans wrote:

<<It seems to me to be like scanning one side of a two sided piece

of paper and believing that you know the whole story.>>



Hi David



There's no belief that they know the whole story.  The design is

that one side of paper will be scanned at speed.



The context is Tasmania's Depart of State Growth has about 3700

miles of roads and millions of trees.  Trees provide many benefits

that they need, and the overall risk from tree failure is extremely

low.  Given this, to have a look at the back of every tree that

could fall onto the highway is not reasonable, proportionate, or

reasonably practicable tree risk-benefit management.  To do so might

bankrupt the state government, or mean they couldn't provide many

other important services.  The design is that they're trying to find

'obvious defects'.  To try and find defects that aren't obvious by

looking at the back of each tree would be grossly disproportionate

to the likely reduction in overall risk.



Cheers



Acer Ventura









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