First Drafted 2006-02-20, Last Changed 2006-02-20, Version 0.2.2.
ONS/ENCAMS Pilot Study Notes
ASAP Research Cluster
meeting 2006-02-08 to ask for Expressions of Interest on an ONS/ENCAMS Pilot Study.
expressed interest and met to discuss details. These notes document this meeting
and provide a platform for further collaboration.
Hugh produced the following briefing document:
Additionally, for background Hugh provided the following document on a broader study:
The LEQSE has been done yearly since 2001. ONS and ENCAMS are seeking advice not
on the National LEQ Survey itself, but in relation to the Pilot Study described in
There has been criticism of the sampling schemes employed. ONS and ENCAMS are
seeking expert statistical advice in a Pilot Study. The idea is to compare
the variability and uncertainties associated with random, systematic and
existing LEQSE sampling methodologies, and to assess the implications of
weighting the survey results by land use.
Upto £10K is available to fund this work.
The work must be backed up by a recognised expert in sampling methodology.
What is being done:
54 Local Authorities are being surveyed for litter/environmental dammage. For each
LA 5 wards are surveyed by means of transects. In each ward level survey, a transect
of each land use is surveyed (generally 4 land uses). Each transect is 50 meter in
length and the width depends on private property boundaries.
ONS Want to incorporate metrics into neighbourhood statistics.
Pilot Study datasets are being complied and should be ready to play with by April.
All transects in an area are surveyed. Independently a set of transects are chosen as
representative by ENCAMS officials. Retrospectively the question is asked: How
representative were the chosen transects given the complete survey.
What ENCAMS want:
A spatial statistician to examine the data and indicate how well the sampling method
works in practice (compared say to a random sample, stratified random sample based on
land use and proportional weightings).
Someone lined up by 2006-03-03 to take on the work during the period 2006-04-01 to
A study of sampling methods.
Andy to email Hugh and Gordon and point them to this note. Done.
If no expertise is forthcoming from University of Leeds. Andy and Gordon to provide
details of experts in UK academia that may be interested/able to help.