This started the gradual process of replacing the ageing trams with the Grimsby trolleybus system.
It was being tested as part of a bid to replace the current trams.
Biel City started to replace the trams with buses in 1930.
But by 1959 it was all abandoned, bus service had replaced the trams.
Motorbuses replaced horse buses and, from 1949 onwards, the trams.
The Board's Riccarton bus service did not come until nearly five decades later when they replaced the trams on 15 June 1953.
Several lines were closed at the beginning of the 1960s as buses replaced the trams.
In the late 1920s the Corporation decided to replace the trams with motor buses rather than renew the infrastructure.
By the 1950s the decision had been taken to replace the trams with trolleybuses.
In 1930 the council finally decide to replace the trams with double-decker buses.