Links

Buchanan Order Management

Traffic orders consultancy, data capture, map schedules advice and ParkMap implementation
www.buchananorders.co.uk 

Software and data 

MapInfo
Desktop mapping software used within TraffMap systems
MapInfo 

Ordnance Survey
Digital mapping of Great Britain for use with our systems
www.ordnancesurvey.co.uk 

Other useful sites

Department for Transport
Traffic signs overview page
Road and street works overview page (includes the Red Book)
2016 TSRGD working drawings for traffic signs
Working drawings for 2002-2011 TSRGDs (mostly still current) by diagram no.
TSRGD 2016 Traffic signs regulations: full Statutory Instrument
    Corrections to TSRGD 2016: [England & Wales] [Scotland]
Circular 01/2016 – an overview of TSRGD 2016 and cross-reference from old diagram numbers
Individual traffic sign authorisations granted since January 2011
National Highways (Highways England) documents on directional signing 
   (withdrawn advice: IAN 144,  IAN 145, TA 93/04, TA 94/04, DMRB archive)

Wales, Scotland and Northern Ireland
Welsh Government working drawings of bilingual signs
Scottish 2022 TSRGD Amendment Notes & guidance on this amendment
Transport Scotland working drawings (links at the bottom)
Scottish traffic sign authorisations granted since 1987 (list only: no drawings)
Northern Ireland traffic sign authorisations since c 2005

Institute of Highway Engineers
Traffic signing annual conference, Professional Certificate in traffic signing