Northern Ireland Travel to Work Areas Date published: 16 March 2017 Research and support: Northern Ireland Travel to Work Areas (TTWAs) Documents Loookup table- SOA to TTWA 2011 Comma-separated values (40 KB) ESRI-TTWA2011 ZIP archive (4 MB) ESRI-TTWA2007 ZIP archive (2 MB) Mapinfo-TTWA2007 ZIP archive (3 MB) Help viewing documents