Plating", was installed on naval vessels, army landing craft, mobile anti-aircraft batteries and coastal defence emplacements. Post-war Terrell shared a £9,500 government award for the invention with Glanville. He also led investigations into the effects of explosions on earth and concrete structures, becoming a pioneer in the wider use of scale models in this field. In the early war years much of this work was focussed on the effect of German bombs on buildings so that civil defence could be better planned. Work in this field included the testing of anti-shatter treatments for windows, assessing the performance of walls and trenches of different constructions and studying the passage of blast pressures which can cause death without structural damage. Glanville's department also developed smoke screens to protect high-priority targets (such as factories) from bombardment and studied how vibrations, for example from digging equipment used by bomb disposal teams, could trigger German anti-handling devices. Glanville's most famous contribution to the war effort was his work, with Barnes Wallis, on the bouncing bombs used in the famous Dambusters raids. Glanville was responsible for calculating the correct explosives charge and for the use of scale models to test the theory on. Post-war analysis of the raids has shown that Glanville's breach size forecasts were accurate to within 10%. His experiments with scale models of the dams provided the targeting point for the raids on the Möhne and Eder dams. He also worked on bituminous surfacing materials and settlement in embankment which he continued after the war, leading to Road Note 29, the structural design standard for roads. In 1943 the road safety research question resurfaced and Glanville held discussions with DSIR on the role that the RRL could play in post-war road safety research. The following year the parliamentary secretary to the Ministry of War Transport, Philip Noel-Baker, visited the RRL and reached the opinion that road safety research should be the responsibility of the RRL. Glanville sought to make the Road Research Board more independent of the MOT and successfully proposed Sir Clement Hindley as chair in 1943, though he died in May 1944. Also in 1943 he proposed that the RRL meet monthly with representatives from the Ministry of War Transport, though such meetings were not implemented until 1945 and equivalents with the MOT on traffic and road safety were not implemented until 1953; this was partly because Glanville's deputy Reuben Smeed