As freight traffic grew, several sidings and loops were added to the main line to serve harbourside businesses.
Regular passenger services ceased in 1987 when the South West Main Line into Weymouth was provided with third rail electrification, which was incompatible with street running and then diesel locos would have to be stationed there to switch over.
During operation of services by Class 33 locomotives, two warning units were built and housed in a cabinet at the track side entrance to the tramway at the throat of Weymouth yard.
This equipment comprised a yellow box which fitted on a lamp bracket on the cab front, and had an amber rotating beacon and bell which served to warn thoroughfare users.
Each member of Class 33/1 and all TC stock had a small socket where the bell/beacon units plugged in to draw power from the train systems.
On arrival at the quay terminus the guard would move the warning equipment to the other end of the train in readiness for the return journey.
[3] In February 2009, the council agreed to purchase the line from Network Rail for £50,000, prior to a final decision on its future.
[4] However, it was reported in July 2014 that the sale of the line never went through and a campaign started to reopen the tram route claiming it would help with tourism and reduce car usage in the town.