CIDER’s interaction data sets

Census Origin-Destination Statistics

• 1981 SMS Set 2 and SWS Set C (county/region level)

• 1991 SMS Sets 1 and 2; SWS Sets A-C (ward level) and Table 100 (students flows at district level)

• 2001 SMS Sets 1 and 2; SWS (levels 1-3: districts, wards, output areas in England & Wales) STS (levels 1-3 and postal sectors in Scotland)

• Some very large matrices