This series consists of files from the Highways Engineering Division concerning roads and highways in England and Wales. They include files concerning the routeing of motorways and trunk roads, the design and layout of roads, motorways, bridges and tunnels; experimental road works; planning proposals; routes for abnormal loads; traffic censuses; pedestrian crossings; the authorization and design of traffic signs; installation and maintenance of traffic signals; accident statistics; road classification and parking requirements. The series includes plans and photographs.
The HE file series was instituted in 1949 to accommodate the papers of the Highways Engineering Staff formerly registered in various file series (including RA, RC, RG, RPW, RTS, TRA, TRK, TRR, TRW and Z7) of the Roads Department. Many files in this series have therefore been re-registered or have earlier files attached to them. They cover in the main, the period 1943-1969, though later papers have been added to some files in the series.
This series also contains some files from the GPH series (otherwise in MT 120) which have been re-registered to the HE file series.