News
2021 Census flow data released
2023-11-02
We are pleased to announce that the 2021 Census public and safeguarded flow data for England and Wales are now accessible through the WICID bulk downloads page.In total, there are 66 public tables and 37 safeguarded tables, which include datasets at various geographical levels.
We are working hard on introducing new, modern tools for the delivery and analysis of census flow data with advanced subsetting capabilities. Updates regarding these new tools will be posted here and shared through the official UK Data Service channels.We are pleased to announce that the 2021 Census public and safeguarded flow data for England and Wales are now accessible through the WICID bulk downloads page.
In total, there are 66 public tables and 37 safeguarded tables, which include datasets at various geographical levels.
We are working hard on introducing new, modern tools for the delivery and analysis of census flow data with advanced subsetting capabilities. Updates regarding these new tools will be posted here and shared through the official UK Data Service channels.
Online services during the Christmas and New Year period
Season’s Greetings to all our users.The UK Data Service will be closed from 5 pm Friday 22 December 2023. All services will fully resume on Tuesday 2 January 2024. Online services will run unattended during this period.
Season’s Greetings to all our users.
Online services during the Christmas and New Year period
2022-12-09
The UK Data Service will be restricted from Thursday 22 December 2022 and closed from Friday 23 December 2022. All services will fully resume on Wednesday 4 January 2023. Online services will run unattended during this period. Season’s Greetings to all our users.The UK Data Service will be restricted from Thursday 22 December 2022 and closed from Friday 23 December 2022. All services will fully resume on Wednesday 4 January 2023. Online services will run unattended during this period. Season’s Greetings to all our users.Online services during the Christmas and New Year period
2021-12-13
Services will be restricted from Thursday 23 December 2021 and closed from Friday 24 December 2021. All services will fully resume on Wednesday 5 January 2022. Online services will run unattended during this period. Season’s Greetings to all our users.2020-03-19
We expect to run as normal a service as possible during this COVID-19 (Coronavirus) emergency. Please visit our COVID-19 page for the latest information.2021-04-19
WICID will be unavailable for scheduled maintenance on Tuesday, 4 May 2021 from 10am to 6pm. We apologise for any inconvenience this may cause.Online services during the Christmas and New Year period
2020-12-11
Services will be restricted from 18 December 2020. Support services will be closed from Wednesday 23 December 2020 and will fully re-open on Monday 4 January 2021. Online services will run unattended during this period. Season’s Greetings to all our users.Online services during the Christmas and New Year period
2019-12-16
The UK Data Service is closed from Tuesday 24 December 2019 and will re-open on Thursday 2 January 2020. Online services will run unattended during this period. Season’s Greetings to all our users.Online services during the Christmas and New Year period
2018-12-11
The UK Data Service is closed from 17:00 on Friday 21 December 2018 and will re-open 09:00 on Wednesday 2 January 2019. Online services will run unattended during this period. Season
Possible website downtime and temporary non-availability of safeguarded data
2018-08-16
The UK Data Service will be undergoing an upgrade to its systems from Thursday 23 August until Wednesday 29 August inclusive. This will also affect the availability of Census Flow-Data website. Normal services are expected to resume on 30 August 2018, but we may require additional days to restore access to our safeguarded datasets. We apologise for any inconvenience.The UK Data Service will be undergoing an upgrade to its systems from Thursday 23 August until Wednesday 29 August inclusive. This will also affect the availability of Census Flow-Data website. Normal services are expected to resume on 30 August 2018, but we may require additional days to restore access to our safeguarded datasets. We apologise for any inconvenience.Online services during the Christmas and New Year period
2017-12-18
The UK Data Service offices are closed from 12.30 GMT Friday 22 December 2017 and will re-open on Tuesday 2 January 2018. Online services will run unattended during this period. Season's Greetings to all our users.The UK Data Service offices are closed from 12.30 GMT Friday 22 December 2017 and will re-open on Tuesday 2 January 2018. Online services will run unattended during this period. Season's Greetings to all our users.Workshop: Accessing census aggregate and flow data
2017-11-02
This half-day workshop will focus on both the aggregate and flow outputs from recent censuses.Aggregate data provide area counts, usually of individuals or households with particular characteristics. Flow data is a special type of data about flows between an origin and destination; examples include migration data, commuting data, movements associated with a second residence or journeys to school.
This workshop will include:
- - an introduction concerning the census and the outputs available through UK Data Service
- - overview of the Census, and specifically aggregate and flow data demonstration of both the InFuse and WICID interfaces hands-on exercises using InFuse and WICID interfaces opportunity to use our older interface, Casweb, which provides access to data from the 1971, 1981,1991 and 2001 censuses
- - opportunities for participants to ask the presenters questions about their own use of census aggregate and flow data
£15 - UK registered students
£30 - Staff - UK academic institutions and research centres, ESRC funded researchers, UK registered charity and voluntary organisations, staff - public sector and government.
£75 - All other participants including commercial organisations and non-UK individuals.
Issues with our authentication service
2017-04-21
We are currently experiencing issues with our authentication system and registered users may not be identified properly. We are working to resolve this problem as soon as possible. Guest users are unaffected. Apologies for any inconvenience caused.Logging in issues due to system upgrade
2017-04-05
Please be aware that from 15.00 BST on Tuesday 18 April users may experience difficulties logging in to the UK Data Service. Please be aware that from 15.00 BST on Tuesday 18 April users may experience difficulties logging in to the UK Data Service. This is because of work being undertaken to upgrade our technical infrastructure. Any access issues should be of short duration and we apologise for any inconvenience this may cause.2016-01-15
From Friday 5th February 5.00pm GMT to Monday 8th February 9.00am GMT, the Flow Data website might be inaccessible at times due to planned maintenance server works that will be taking place. We apologise for any inconvenience this may cause.From Friday 5th February 5.00pm GMT to Monday 8th February 9.00am GMT, the Flow Data website might be inaccessible at times due to planned maintenance server works that will be taking place. We apologise for any inconvenience this may cause.2015-10-22
We are pleased to announce that NOMIS has developed a new table finder tool that is now available to anyone interested in 2011 Census flow data. With this tool you can search using free text, multiple parameters and criteria. A button to the table finder is available in the main WICID selection page. All safeguarded tables will redirect back to WICID as it is the main access route for certain types of users.SASPAC safeguarded batch 4 released
2015-04-22
Following the release of safeguarded batch 4 csv downloads in March, the data is now also available in SASPAC format via the Downloads page.Third batch of 2011 Census safeguarded data released
2015-03-10
We are happy to announce that the third batch of 2011 Census safeguarded data in csv format is now available to qualified researchers through the Downloads page.Fourth batch of 2011 Census safeguarded data released
2015-03-13
Another big batch of 2011 Census safeguarded data sets has been released in csv format for download. This batch includes 107 tables and is the final major release through the 2011 Census safeguarded channel. Downloads in SASPAC format and queryable access via WICID will follow in the near future.SASPAC safeguarded batch 3 released
2015-03-11
Following the release of safeguarded batch 3 csv downloads, the data is now also available in SASPAC format via the Downloads page.Second batch of 2011 Census safeguarded data for SASPAC is released as download
2015-01-15
The second batch of 2011 Census safeguarded data for SASPAC is now available through the Downloads page. This complements the CSV and WICID releases of the 2011 census second safeguarded batch in December 2014.Second batch of 2011 Census safeguarded data is released via WICID
2014-12-19
The second batch of 2011 Census safeguarded data is now available via the Web-based Interface to Census Interaction Data (WICID) system. As with all the safeguarded data sets, to gain access you will need to have your institutional account registered with the UK Data Service before logging in.The second batch of 2011 Census safeguarded data is now available via the Web-based Interface to Census Interaction Data (WICID) system. As with all the safeguarded data sets, to gain access you will need to have your institutional account registered with the UK Data Service before logging in.Possible downtime on 16 December
2014-12-08
On Tuesday 16th December, the Flow Data website might be inaccessible at times -especially during early morning- due to planned maintenance server works that will be taking place. We apologise for any inconvenience this may cause.Second batch of 2011 Census safeguarded flow data available for download
2014-12-08
Another set of safeguarded data has been released for download. In order to access it you will need to login using your institutional account that is registered with UK Data Service. The data sets will be also made available through WICID in the next weeks.First batch of 2011 Census safeguarded flow data released
2014-12-03
The first of a series of safeguarded origin destination statistics from the 2011 Census are available to academic and public sector researchers from today. Data is available as CSV and SASPAC downloads and via the Web-based Interface to Census Interaction Data (WICID) system.Currently 4 tables are available for England and Wales and 4 for Northern Ireland. The service will extend in the next few months to provide over 180 files to registered users of the UK Data Service who are able to satisfy terms and conditions of access.
Researchers wishing to use the UK Data Service will need to register and accept terms and conditions before accessing and downloading data.
All members of UK Higher Education (HE) belong to the UK Access Federation and these credentials enable access to the UK Data Service by academic researchers in HE. Public sector users need to obtain a UK Data Archive username and password and then use these to register with the UK Data Service at http://ukdataservice.ac.uk/get-data/how-to-access/registration.aspx. The first of a series of safeguarded origin destination statistics from the 2011 Census are available to academic and public sector researchers from today. Data is available as CSV and SASPAC downloads and via the Web-based Interface to Census Interaction Data (WICID) system.
Currently 4 tables are available for England and Wales and 4 for Northern Ireland. The service will extend in the next few months to provide over 180 files to registered users of the UK Data Service who are able to satisfy terms and conditions of access.
Researchers wishing to use the UK Data Service will need to register and accept terms and conditions before accessing and downloading data.
All members of UK Higher Education (HE) belong to the UK Access Federation and these credentials enable access to the UK Data Service by academic researchers in HE. Public sector users need to obtain a UK Data Archive username and password and then use these to register with the UK Data Service at http://ukdataservice.ac.uk/get-data/how-to-access/registration.aspx.
2014-09-17
On Thursday 18th September there might be some downtime due to maintenance work taking place. We will try to keep it as short as possible. We apologise in advance for any inconvenience this may cause.2014-08-15
The first batch of 2011 datasets have been added to WICID; more to be added soon.2014-07-30
The first batch of 2011 UK Census flow-data was released by ONS on 25th July 2014. We are in the final steps of processing and doing some quality control checks. A separate announcement will be posted once we make the data public on WICID.2014-07-24
The UK Data Service Census Support Flow Data website has moved server and changed domain. Update your bookmarks to point at https://wicid.ukdataservice.ac.uk. SSL is now supported for safer access.2014-02-14
We are currently awaiting information about the release schedule for the 2011 data sets. We currently expect to see the first releases in quarter 2, 2014, but note that this is provisional.2013-10-22
The CIDER website was unavailable from approx 12pm-12:30pm today (22/10/13) due to a database failure and restart - we apologise for any inconvenience2012-09-20
Users were unable to use CIDER and other services for a period today (Sept 20th) due to a power failure at Essex, with the result that Shibboleth authentication was not possible. All services should now be restored, and we apologise for any inconvenience.2012-01-16
There was a server reboot at MIMAS today (16th). Our service is back up but there are problems with authentication which we hope will clear shortly...2011-09-27
Updates are being made to the Shibboleth authentication system - WICID may be unavailable for periods today (Sept 27th); apologies for any inconvenience.2011-06-28
We have been advised of the following periods when Census services will not be available due to work on authentication systems.- 9th August: Services unavailable 08:00 to 13:00
- 27th August: Services unavailable all day
- 28th-29th August: this has been notified as an at risk period
2011-07-15
There have been problems recently with the mapping functions and with downloading large data sets; these seem to have been different manifestations of the same web-server configuration issue but should now be solved!2011-06-13
As of this morning (June 13th) there are problems logging in to CIDER and some other Census services. We hope that this problem will be solved shortly. Update: These problems still remain as of the morning of June 14th. Staff at MIMAS at working to resolve the problem; we apologise for any inconvenience.2010-12-20
The CIDER website and associated servers will be running unattended from December 24th until Jan 4th; there will be no support over this period.
Thanks, and Merry Christmas to our users.
2010-07-28
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A new book - Technologies for Migration and Commuting Analysis: Spatial Interaction Data Applications - edited by and with significant contributions from the CIDER team, is now available to purchase from IGI Global. A detailed book summary including chapter outlines and details of contributing authors can be found on IGI Global's website. Copies of the book can also be ordered from here along with other electronic purchasing options. |
2010-11-08
The CIDER website was unavailable for a time this morning, following a server failure at MIMAS. We apologise for any inconvenience.2010-10-20
20/10/10 c. 4pm - Shibboleth authentication currently seems to be running very slowly - we are investigating the problem. Please allow several minutes(!) for authentication to complete.2010-10-15
We have transitioned the CIDER service to new hardware at MIMAS. If you are reading this, then the move was a success! All features should work exactly as before, although the mapping facility is currently being updated and is not available.Time series of inter-district migration estimates now available
2010-04-23
A new ten-year time series of inter-district migration estimates, disaggregated by broad age-groups are now available for both registered and unregistered users.For information about the data and how to gain access see Getting the data below... For information about the data and how to gain access see Getting the data below...
New time series of inter-regional and inter-county migration estimates now online
2010-02-12
The first in a series of new data sets from the ESRC-funded Combining Migration Data in England and Wales project is now available to access from
. The project, recently completed by James Raymer, Peter Smith and Corrado Giulietti at the Southampton Statistical Sciences Research Institute (S3RI), has produced several datasets at regional, county and ONS local authority classification Group levels, which cross tabulate age, sex, ethnicity and employment status variables. These data are available for time series ranging from 1991 to 2007. For detailed information on the datasets and methodology used to produce the estimates, a PowerPoint presentation given by James can be accessed here and the final project report can be accessed here. For detailed information on the datasets and methodology used to produce the estimates, a PowerPoint presentation given by James can be accessed here and the final project report can be accessed here.
New CIDER Migration Classification Geography Available
2009-12-16
A geodemographic district level classification based upon migration variables is now available as a new geography in. The classification has been developed by CIDER as a new framework for analysing migration flows. For full details, read the associated working paper here.New UK time series estimates added
2009-10-12
Two sets of inter-NUTS2 region migration estimates for the whole UK have been added to WICID. The first mid 1999 to mid 2007; the second calendar year 2000 to 2007. These data have been created as part of the ESPON DEMIFER project and enable sub-national, inter-regional migration flows to be examined for a consistent time series for the first time. DEMIFER NUTS2 estimates These data were created as part of the European Spatial Planning Observation Network (ESPON) 13 programme. One of the applied research projects under the ESPON 13 programme, known as DEMIFER (DEmographic and MIgratory Flows affecting European Regions and Cities), produced a database of time-series demographic data for the 27 member states of the EU, plus 4 other European States at the NUTS2 geography.Where a time-series of UK internal migration flows were not previously available, the DEMIFER team at the University of Leeds produced a set of estimates based principally on publicly available inter district Patient Register flows (supplied by ONS), but also incorporating inter-government office region UK migration data from the National Health Service Central Register (NHSCR - also supplied by ONS) and distributions from the 2001 Census Special Migration Statistics.
DEMIFER have produced two sets of estimates - one set running from mid-year to mid-year and one set covering calendar years.
For a detailed methodology describing the exact estimation process, see Dennett, A and Rees, P. (2009) Estimates of internal migration flows for the UK, 2000-2007 - details in the Papers section of this website
* Note - as these data are estimates not all flows will be integers, some will be decimal values *
Additional 2001 commuting data added
2009-09-29
Two additional data sets have been added to WICID, which show commuting flows to Output Areas in London
- 2001 C0310 details flows from wards in London to OAs in London
- 2001 C0311 details flows from districts in England and Wales to OAs in London
Users interested in total inflows to distinct OAs in London will find that these are more reliable than the original SWS data, as they are less affected by Small Cell Adjustment.
Both sets contain a single mode-of-transport table, identical in form to that used in the original 2001 SWS Level 3.
Both sets were originally commissioned by the Greater London Authority.
2009-09-14
New 2008 migration data derived from Patient Registers have been added to the system. This now creates a time series of mid-year, rounded, migration flows between districts in England and Wales from 1999-2008. Also available to download with these data are accompanying populations at risk (see the WICID help system for details on how to download population data with your flows).2009-09-14
We have suffered from a service loss today (9/7/09), following the failure of a shared storage controller early this morning.
Staff at MIMAS are working to restore service to CIDER and other MIMAS hosted services.
2007-08-01
The CIDER website has been updated in accordance with the new Census Portal. Amongst the new features are a revised (and easier) general query builder. Please contact a member of the CIDER team if you have any queries about the site revision, or come across anything that does not appear to work as expected.Research Assistant/Fellow required
2006-06-29
2006-03-03
Please take a few minutes to complete the Census User Survey; your feedback is highly valued. Note that the Survey enables you to fulfill your obligations as a Census data user to report research outputs that have used the data2005-11-02
WICID was unavailable yesterday (Nov 1st) when the database server crashed and failed to restart properly after a seperate failure at MIMAS. We apologise for any inconvenience caused to users.2001 data: Local Authority data sets
2004-10-21
Interaction data sets at local authority level were formally released on 21st October, 2004. They will be available through WICID shortly.CIDS have received these data sets and are in the process of adding them to WICID. More information about the data can be found via ONS and GRO(S):2004-07-21
Output area level data sets from the 2001 Census are now available through WICID.The 2001 Special Migration Statistics, Special Travel Statistics and Special Workplace Statistics are now available via WICID. Formal news about these data will be circulated within the next few days. Detailed descriptions of each data set can be found via the 'About the data' page in WICID.
Ward level data are expected to be made available before the end of July 2004.
Users should note that small cell adjustment has had a significant effect on the output area level data. Anyone wishing to generate aggregate counts for larger areas are advised to wait until ward or district level data are available. Users are also advised that these data sets are extremely large - sets of origins and destinations should be picked carefully!
2004-05-18
CIDS have taken delivery of the first origin-destination data sets from the 2001 Census, and these will be available shortly.The following data sets were released on May 7th:- SMS Level 3 - Output Area level migration data (UK)
- SWS Level 3 - Output Area level journey-to-work data (England and Wales)
- STS Level 3 - Output Area level travel data (Scotland)
1991 SWS Sets A and B available
2004-05-18
The Special Workplace Statistics Sets A and B, from the 1991 Census, are now available through WICID. Both sets contain ward-level journey-to-work flow data. Set A contains data on wards of residence, whilst Set B contains data on wards of workplaces. Both sets contain 9 tables disaggregating the flows. The data in both sets is taken from a 10% sample.2004-03-09
The SWS are now scheduled for release in stages over the period April-July 2004, starting with the Output Area level data.Full details can be found in Census News. No official news has been released regarding the SMS, although CIDS understands that it is likely to follow a similar release schedule. Users should note that we are envisaging a delay of up to two months between receipt of the data at CIDS and release via WICID, whilst we load and check the data.2004-02-02
Emergency downtime has been scheduled for February 3rd. The irwell server (on which our software runs) will be down for two hours (or more) from 9am to replace cooling fans. WICID will be unavailable during this time.
Temporary problems logging in to WICID
2003-11-05
Users may have experienced problems logging in to WICID around 2:30 - 2:45pm on 5/11/03. We apologise for this fault.1981 Data sets expanded and renamed
2003-06-27
The 1981 data sets have been given revised, more useful names. In addition an extra 1981 SWS data set has been added, with more data to be added over the summer.The 1981 data sets have been renamed as follows. The set previously labelled 1981 SWS data is now labelled 1981 SWS Set C (1991 geog) (inc. pro-rate workplace unstated). This should make the use of geography in the data more obvious, and makes clear that the estimation process used to create the data set included the pro-rate redistribution of workers with 'workplace unstated' across all wards.
A further data set has been added: 1981 SWS Set C (1991 geog). Again, this has been re-estimated for the 1991 ward boundaries, but in this case no re-distribution was done of the workplace unstated category. Counts for workplace unstated, workplace overseas and no fixed workplace are available as a distinct geography type 1981 SWS other workplaces
It is intended to add some further 1981 data sets over this summer
MIMAS "At Risk" period - 1st July 2003
2003-06-23
Due to a network router upgrade taking place at Manchester Computing on Tuesday July 1st, all MIMAS services will be "at risk" from 7.30 am until 9.00am.2002-12-20
Restoration of WICID service 20th December 2002Due to a database fault, the WICID service was lost on December 17th. The system has been restored from a backup, but some inconsistencies may exist. Unfortunately, these are unlikely to be corrected until after the Christmas break.In particular, saved user queries are not available - we apologise for this problem.
We hope to restore a full service as soon as possible after January 2nd, 2003.
