We know that demand for travel is increasing and that it is expensive and difficult to add additional capacity to existing modes. I have long wondered why we aren't at least trialling airship travel for some routes/trips. The footprint required to run an airship port is very small and can be comfortably at the top of buildings. The routes do not require expensive engineering to provide rails/road surfaces between the start and end of journeys and the engineering required for a port and craft is less complicated than that for a new station. The operational energy required is minimal and clean if electric/solar and staffing requirement is similarly lean. There are a lot of journeys that are quite short as the crow (or airship) flies but which take time because of physical constraints to direct routing or are uncomfortable due to congestion and overheating. The technology is now far safer than previously and surely the time is right to take an innovative approach to adding capacity in a low carbon and quiet way? I can't see anything in the powers of the Mayor or TfL that would prevent this - or am I missing something?