[3] Adelaide's horse tram era was briefly punctuated by a technology that foreshadowed the direction in which public transport would be transformed around the world.
Since most of the line was in a private reservation, the MTT designed an interurban-style high-speed (for the time) end-loading saloon tram with power-operated doors and folding steps.
By year's end the 1929-vintage trams had been largely phased out of normal revenue service (the last being in 2008), only running occasionally on special occasions.
On 9 March 1909, a balmy South Australian autumn day, many thousands turned out to see a procession of 14 trams going slowly along the thoroughfares of Adelaide and nearby eastern suburbs for the official opening of the city's electric tramway system.
[note 16] However, when the building was required by the Royal Agricultural and Horticultural Society of South Australia the work was moved to Hackney Depot, delaying construction of cars and preventing electric services from beginning on the planned date of 23 December 1908.
[2]: 38 Type A trams were the work-horses of the newly opened lines, including those to Kensington, Marryatville, Maylands, Payneham, Walkerville, North Adelaide, Parkside, Unley and Hyde Park.
[27] For normal stopping the Adelaide trams had a handbrake, operated by the motorman manually winding a wheel in the cab, and electromagnetic track brakes, energised by power generated by the motors as the cars slowed down, for emergencies.
[18] However, only pull-down canvas blinds offered weather protection and they were inadequate for Adelaide's rainy winter months, which are cooler than in southern California.
One "toastrack" was retained for use by the MTT band on the Port Adelaide system[2]: 60 and in 1929 one was substantially converted for use during construction of the electrification infrastructure of the Glenelg tram line.
Rebuilding involved removing six cross-bench seats and their pillars from the centre of the car, then installing a heavily constructed saloon in their place.
[30] The trams were essentially the same as the Type A1, but easily distinguishable in having three large windows instead of five small arched ones, and heavy, riveted steel sides.
Noyes Brothers then negotiated with Adelaide coachbuilders A. Pengelley & Co. to erect the bodies under their supervision at the same tendered price, reported in The Register as being £36,673 and 13 shillings.
When 20 had been completed, a change was made to the design of the remaining 30 (subsequently increased to 50): sliding doors were fitted to enclose each row of bench seats to give for protection from inclement weather.
They entered or left the tram's open section, which had a lower floor than the enclosed saloons on either side, made possible by more modern running gear that took up less space.
As John Radcliffe and Christopher Steele observed:[2]: 65 These cars were important in the development of an unusual custom by passengers of practising the de facto segregation of the sexes.
The dropcentre cars had the leading role over the entire Adelaide street tram network for 37 years until the system, with the exception of the Glenelg line, was shut down on 22 November 1958.
The trams filled a niche demand for economic operation over the lightly patronised Port Adelaide system,[note 22] carrying only 50 passengers.
They incorporated folding doors and steps and several safety features, and used little power, but due to their small wheelbase tended to "ride like a rowboat out to sea".
[2]: 86–89 [note 24] To provide a fast service on the 10.9 km (6.8 mi) line between Adelaide and the beachside suburb of Glenelg – 85% of it in an exclusive corridor – 30 long, fully enclosed end-loading saloon cars were designed and built.
From the entry vestibule, a step up led to a saloon with reversible leather seats, with a mid-car, full-height partition, originally to separate smokers and non-smokers.
Brill Company built of lightweight steel, and despite the higher-than-normal speed of the Type H trams, the MTT did not incorporate this inexpensive feature in its design.
[47][48][49]: 39 [50][note 31] Ten of the cars underwent their first-ever major refurbishment at the State Transport Authority's workshops, based at the time in Regency Park.
[note 34] In 2006, when the first of the new trams purchased for Adelaide's tramways revival began operation, a numerical "series" classification replaced the old alphabetical system.
Their subsequent uses were as varied as a restaurant, an attraction at a bed-and-breakfast venue, a tourism display at Glenelg, and a media studies classroom in a Riverland high school.
Although it captured the public's imagination, commonly being known as "the streamliner", it incorporated only marginal improvements over the Type H. It was introduced in January 1953 and for most of its short operational life it ran on the through-routed Kensington and Henley North lines.
[2]: 128, 133 The board initiated a complete re-examination of the transport system, and plans were made to replace all the existing tramways, including the Glenelg line, with bus operation.
Starting in January 2006, eleven Bombardier Flexity Classic vehicles began operation, progressively replacing the Type H trams, by then 77 years old.
[65][note 41] Initially the trams' air conditioning systems, built for the Hamburg climate, failed to cope with Adelaide's high summer temperatures, but they were rectified by engineering changes in 2007.
[71] Alstom built the first of what became Adelaide's 200 Series trams as part of an order of 70 Citadis model 302 units from Spanish operator Metro Ligero for service in Madrid.
The Tramway Museum, St Kilda, 24 km (15 mi) north of the centre of Adelaide, has at least one example of every principal tram type to have been in service on a city street system.