[1][2] During World War II, he served with the Royal Australian Air Force, primarily in New Guinea.
[2] In 1953, Snell left the SEC, and moved to the Melbourne & Metropolitan Tramways Board (MMTB) as an electrical engineer.
[1][2] As Chairman of the MMTB, Snell faced the same financial challenges as Kirby, but nonetheless managed some reforms.
[4] New ticketing systems, which arrested patronage declines by making public transport more cost effective, were implemented under his administration.
[3][4][6] Snell was critical to the MMTB's successful involvement in the construction and operation of Hong Kong's Tuen Mun light rail systems.
[7] Public transport in Victoria was reorganised on 1 July 1983, with Melbourne's railway services and MMTB tram and bus services amalgamated into the Metropolitan Transit Authority (MTA), leaving Snell the MMTB's final chairman.
[2] In this capacity, he aided in the creation of Light Rail Transit standards,[9] and was one of a group of three Members of the Commission who presented at the UITP 46th International Congress in Brussels in May 1985.