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"scale of survey"- exact implication
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Subject Author Date
"scale of survey"- exact implication Suraj Joneja 02-18-2005
Posted by Suraj Joneja on February 18, 2005, 4:23 pm
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 Hi All,

I want to know the exact implication of "scale of survey" for spatial data.

Taking an example- If I am "surveying" roads of a city by PHYSICALLY
traversing over them in car with a GPS- And loggin a point EVERY one second
in a database- And I'm traveling at a speed NOT GREATER THAN 10
Kilometers/Hour- And my GPS gives me a positional accuracy of 5 Metres; Then
what is my scale of survey? is it 1:10 or 1:100 ......

Thanks in advance
Suraj







Posted by Alaca on February 18, 2005, 2:21 pm
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 Suraj Joneja wrote in: 37lvsmF5beh73U1@individual.net,

> Hi All,
>
> I want to know the exact implication of "scale of survey" for
> spatial data.
>
> Taking an example- If I am "surveying" roads of a city by PHYSICALLY
> traversing over them in car with a GPS- And loggin a point EVERY
> one second in a database- And I'm traveling at a speed NOT GREATER
> THAN 10 Kilometers/Hour- And my GPS gives me a positional accuracy
> of 5 Metres; Then what is my scale of survey? is it 1:10 or 1:100
> ......
>
> Thanks in advance
> Suraj

1 km in 360 sec
360 point / km
1 point / 2.78m

--
P.A.



Posted by Suraj Joneja on February 19, 2005, 10:17 am
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Hi!
OK,
That's clear- one point in 2.78 Metres (And This point has an inaccuracy of
5 M (by my definition)- so what is the scale of surevey? 1:?? . PLease beat
this on my head!

Thanks
Suraj


> Suraj Joneja wrote in: 37lvsmF5beh73U1@individual.net,
>
> > Hi All,
> >
> > I want to know the exact implication of "scale of survey" for
> > spatial data.
> >
> > Taking an example- If I am "surveying" roads of a city by PHYSICALLY
> > traversing over them in car with a GPS- And loggin a point EVERY
> > one second in a database- And I'm traveling at a speed NOT GREATER
> > THAN 10 Kilometers/Hour- And my GPS gives me a positional accuracy
> > of 5 Metres; Then what is my scale of survey? is it 1:10 or 1:100
> > ......
> >
> > Thanks in advance
> > Suraj
>
> 1 km in 360 sec
> 360 point / km
> 1 point / 2.78m
>
> --
> P.A.
>




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