Airfield Safeguarding & Development © ASD,2012                                                                                                                                                Contact ASD Helping Airfields Develop Safely ASD Typical of the many projects undertaken are those for, and around, London City Airport, which, because of its position close to  the City of London, is protected by a unique set of safeguarded surfaces. These include the ExCel extension, Silvertown  Quays, the Docklands Light Railway, and the University of East London.  This does not mean, however, that all projects undertaken are this large. ASD has advised many aerodromes, large and  small, licensed and unlicensed, on the safeguarding implications of individual structures, including internal developments,  buildings, cellphone masts and wind turbines. In addition, ASD  has completed many safeguarding charts for all types of  airfield. PROJECTS