 GEOG: In the first Cambridge scene, set in 1919, passengers are seen  on the railway stations footbridge. In fact, pressure from 19th  century Cambridge University leaders opposed to railways led to  special conditions being imposed on the station before it was  constructed, and one of these was that it must have no footbridges;  although one was added later, it was demolished again in 1863 and  since then the station has had level access to all platforms.