Extant pillar total

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Extant pillar total

Postby Cootking » Sun Nov 18, 2018 1:56 pm

Hi all, Is there an easy way of getting my extant pillar total without going through them one by one? What counts as extant anyway? Remains?
Happy bagging.
Cootking - with thoughts of making the cloche of fame.
Cootking
 
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Re: Extant pillar total

Postby clochandighter » Sun Nov 18, 2018 9:22 pm

The last time I did a headcount of the 6590 OSGB36 pillar stations was a couple of years ago. From 6590, there were 6041 survivors, 5974 standing at their original site and 67 which have been moved or dumped but still retain their FB numbers.

The break down / figures I obtained were as follows:

...
ALL
Country Pillars Percent
England 3680, 55.9
Scotland 2211, 33.5
Wales 684, 10.4
Isle of Man 15, 0.2
Totals 6590, 100

SURVIVORS (at original site)
Country Pillars Percent
England 3201, 87.0
Scotland 2118, 95.7
Wales 640, 93.7
Isle of Man 15, 100

Totals 5974, 90.6

MOVED / DUMPED (with FB)
Country Pillars Percent
England 58, 1.58
Scotland 5, 0.23
Wales 4, 0.59
Isle of Man 0, 0
Totals 67, 1.0

DESTROYED (Gone or remains)
Country Pillars Percent
England 420, 11.4
Scotland 90, 4.1
Wales 39, 5.7
Isle of Man 0, 0
Totals 549, 8.3


Note, all 6590 OSGB36 triangulation pillars did not stand at the same time. The first was destruction was in 1937 and the last new builds were in 1986. There are 26 pillar stations which were each replaced by another pillar station nearby, these pairs would each count as 2 within the 6590 total. There are 87 situations where a pillar has had a flush bracket changed or added mid-life. These are only counted as 1. There are eleven situations where the same flush bracket has been used in two pillars, and four situations where a flush bracket number has been duplicated among the pillars, two flush brackets numbered S6502 exist, one pillar, one NPFB; these events do not affect the 6590 OSGB36 pillar headcount.

I need to do this exercise again soon because I suspect there are now less than 5974 (+67 M/R) survivors. That can be done just after I have been through all the TPUK pillar reports to date for every triangulation pillar and populated the main Trigonomy Spreadsheet with the findings. I am nearly half way through that process for the 2018 edition, due for upload on 31/12/2018.


Hope this helps, kind regards,

Graeme
(clochandighter)
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Re: Extant pillar total

Postby alansmeaton » Sun Nov 18, 2018 11:43 pm

Hi Graeme,
Big reply of great interest but I was also interested in checking how I can get my own pillar total. Is there a quick way or do I just have to go through my logs? Good and slightly damaged are OK but do I count remains in the total? (As others have done special events for their 1000th or other number of pillars what criteria do people use - if any?
Alan
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Re: Extant pillar total

Postby asbown » Fri Nov 30, 2018 12:41 pm

Hi Alan.

I count remains and converted, My current extant total also includes 18 none OS, project emily (8) Great glen (7) and 5 which come under others.
I am not sure if there is a correct counting method, if it's a pillar and I have been to it I count it.

Regards Andy.
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Re: Extant pillar total

Postby MAC.HAWK » Fri Nov 30, 2018 9:36 pm

To simply look at the numbers, once logged in select My Trigs and on the ensuing page click on MyTrigpointingUK Profile. This will show you your numbers for Current Use, By Historic Use, Type and Condition.

Personally I regard any pillar site I visit as a 'Tig' regardless of whether the pillar is still there or not. If a pillar has been moved I'd try to visit both the old and new site however common sense prevails if, for example, the new site is at the field edge and the old site is in a field full of growing crop I simply just visit the new site.
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Re: Extant pillar total

Postby Cootking » Sun Dec 02, 2018 5:10 pm

I assume this total includes all pillars, including those destroyed that I've visited plus 2 for those where the pillar has been replaced by a new one.
Hi
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Re: Extant pillar total

Postby MAC.HAWK » Mon Dec 03, 2018 7:58 pm

Your assumption would be correct.
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