2011 Census

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  Method of Travel to work dataFeb 14, 2013 12:51 PMTim Bounds
  RE:Method of Travel to work dataMar 01, 2013 10:55 AMPaul Brown
  RE:Method of Travel to work dataMar 04, 2013 9:47 AMCharles Arthurs
  RE:Method of Travel to work dataMay 14, 2013 3:59 PMrichard cameron
  RE:Method of Travel to work dataMay 15, 2013 7:50 AMTim Bounds
  RE:Method of Travel to work data
May 15, 2013 11:09 AMDavid Walker
 

1.
Method of Travel to work data
From: Tim Bounds
To: 2011 Census
Posted: Feb 14, 2013 12:51 PM
Subject: Method of Travel to work data
Message:
Most of you will have seen ONS' published method of Travel to Work table QS701. When we looked at it, we were puzzled that the apparent proportion of people working at home had fallen between 2001 and 2011  which wasn't what we would have expected.
ONS has just released a paper analysing Travel to Work data, which says that QS701 isn't completely compatible with KS015 from the 2001 Census in its treatment of people who work at home, but they have a released an additional table CT0015 which gives an alternative take on the data and is compatible with 2001 Census data.

However, CT0015 only has data at district level and I'm informed that ONS are not planning to release this table for smaller geographies. This would mean that we could obtain compatible data between 2001 and 2011 at district level, but 2011 district and small area figures wouldn't be compatible, OR we could have figures that are compatible beween districts and small areas at 2011, but which aren't comparable with 2001 data.

Surely this is unsatisfactory and reduces the usefulness of the data?

TIm Bounds
Tees Valley Unlimited
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2.
RE:Method of Travel to work data
From: Paul Brown
To: 2011 Census
Posted: Mar 01, 2013 10:55 AM
Subject: RE:Method of Travel to work data
Message:
Hi Tim,

Apologies for time taken for response, but here it is now:

The data on travel to work are not directly comparable between 2001 and 2011, because of a change to how they were processed.

In 2001, if a respondent recorded that their Workplace Address was "at home", it was assumed that they did not travel for work, and they were also recorded as working at home in the Travel data.

However, in 2011, this assumption has not been made. Therefore, any respondent who works at home, but also travels (e.g. a mobile hairdresser) is recorded as "Working at home" in data or Workplace (which has not yet been published) but as "Driving" (or whichever mode of travel they recorded) in the Travel data. This is more relevant to transport planners and other users.

As we are aware that some users will also want to compare these data with the 2001 Census, we published an additional table on 13th February, to present the 2011 data on the 2001 basis (so mobile hairdressers will count at working at home) at a Local Authority level. As these data are less accurate than those in the Quick Statistics table, we have no plans to produce this table at lower levels of geography as a standard product. However, those data could be commissioned, subject to Statistical Disclosure Control.

When we produce "flow data" outputs, respondents who have a method of travel to work but no destination (e.g. the mobile hairdressers) will not be included, as there is no flow that can be shown. These data will be on a comparable basis to outputs from the 2001 Census.

    

Regards

Paul






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3.
RE:Method of Travel to work data
From: Charles Arthurs
To: 2011 Census
Posted: Mar 04, 2013 9:47 AM
Subject: RE:Method of Travel to work data
Message:

Paul.

I'm still a little confused about the travel to work data. Let's suppose in Census 2011 someone indicates in Q41 that they work at or mainly from home but in Q40 gives a workplace address other than their home. In
2001  they would not be considered as travelling to work but in 2011 they would . But you have no way of knowing how they travel, when they do so,  because Q41 allows  for only one answer and they have selected the first (home) option. So are you assuming that the distribution of method  of travel for such persons follows that of those who don't work at or mainly from home and , if so, how do you justify that assumption?

Also, the assertion that Q41 in 2011 is "fully comparable" with the corresponding question in 2001 seems false.

Charles


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4.
RE:Method of Travel to work data
From: richard cameron
To: 2011 Census
Posted: May 14, 2013 3:59 PM
Subject: RE:Method of Travel to work data
Message:

I've just received a commissioned table of Travel to Work for wards and higher geographies in England and Wales produced on the same same basis as 2001. The table CT0045, is identical to CT0015 for districts and higher geographies. It can be found here: table CT0045 

Richard Cameron
Greater London Authority


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5.
RE:Method of Travel to work data
From: Tim Bounds
To: 2011 Census
Posted: May 15, 2013 7:50 AM
Subject: RE:Method of Travel to work data
Message:
Thank you Richard - very helpful

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6.
RE:Method of Travel to work data
From: David Walker
To: 2011 Census
Posted: May 15, 2013 11:09 AM
Subject: RE:Method of Travel to work data
Attachment(s):
Message:
Percentage page added to the spreadsheet (easily done, but may save some work).

David 


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