A Trailer bus or articulated trailer bus is a
busformed out of a bus bodied semi-trailerpulled by a conventional tractor unitin the same way as a conventional articulated Semi-trailer truck.
Trailer buses are usually pulled by a conventional truck from various truck manufacturers, while others have larger space cabs. Trailer bus bodies are built by various local builders.
Early trailer bus designs emerged as early as 1924, with a large amount seeing service in the post war years. Several trailer buses continued in service in more remote and rugged areas such as
South Africa, possibly due to the terrain, and availability of specialist bus builders as opposed to truck dealers and basic body builders.
An early Trailer bus was designed in Amsterdam in the 1920s as bus designs got longer. As a solution to possible grounding hazards on humped bridges 3 prototypes were built in 1924, but proved to be problematic and later converted to rigid bodies in 1927 [ [http://homepages.cwi.nl/~dik/english/public_transport/odds_and_ends/bus.html An early articulated bus from Amsterdam] ] .
In the immediate post-war years after World War II, trailer buses were turned to as a cheap way of providing bus transport to replace worn out conventional bus fleets. The trailers were basic and uncomfortable, but served a purpose.
Even a double deck trailer bus was built [ [http://www.bestundertaking.com/gal_07b.asp Fan site] Image of an Indian double decker trailer bus] ] .
The American truck manufacturer White built a trailer bus in 1947, now located in Sydney Bus Museum along with its tractor unit, a 1943 White M3A1,
New South Wales, Australia[ [http://carole.lawrence.fotopic.net/p15833264.html Fotopic image of a White powered trailer bus] in Sydney Bus Museum, NSW] . 123 semi-trailer type buses built and operated in Australia between 1939 and 1984. The Sydney exhibit was the last trailer bus used in NSW, withdrawn in 1977 [ [http://www.sydneybusmuseum.com/exhibs/015.htm Sydney Bus Museum] Trailer bus exhibit] .
Trailer buses were also used in Perth, Australia, in 1952, purchased by
Western Australian Government Railwayswith the trailer bodies built by Scarbrough Bus Services [ [http://oo7.fotopic.net/c366883.html Perth semi-trailer buses] A Fotopic gallery of various trailer buses in Perth] .
In 1948,10 british built [ [http://www.lbpt.org/702b.html Cobham Bus Museum] Trailer Bus exhibit details] trailer buses saw service as a staff canteens for London Transport (in country green livery) [ [http://ccmv.fotopic.net/p27033125.html CCMV - Classic Commercial Motor Vehicles] A fotopic image of the London transport staff canteen trailer bus] with one passing to the Cobham Bus Museum in 1972.
A large order for 1175 buses from the Netherlands Railways for buses from Crossley included an order for 250 trailer buses to carry 52 seated and 28 standing passengers [ [http://www.crossley-motors.org.uk/history/postwarbus.html www.crossley-motors.org.uk] The Crossley Dutch buses] . The tractor units were delivered as short Crossley DD42's, and these were matched in Holland with DAF built trailer chassis fitted with bus bodies.
Trailer buses saw service until at least 1984 in South Africa [ [http://www.sa-transport.co.za/buses_and_coaches/sar_sats/sar_semi-trailers_umtata_sl.jpgwww.sa-transport.co.za] Image of trailer buses at a terminus in Umtata in 1984] , and are still in service in
Cuba, where they were introduced under the nickname of “camellos” (“camels”, from the twin-humped shape of the trailers) during the so-called “special period” after the fall of the Soviet Union. As of 2008, the trailer buses are reportedly being gradually retired from service in Havanacity, replaced by Chinese-made buses [cite news | last = Weissert | first = Will | title = Changing Cuba: Monster buses vanish from Havana streets | publisher = The Associated Press (reprinted in "The Guardian") | date = 2008-04-19| url = http://www2.guardian.co.uk/worldlatest/story/0,,-7473569,00.html | accessdate = 2008-05-28 ] .
* [http://gallery27995.fotopic.net/p2122261.html Fotopic image, an illustration of the Crossley Dutch trailer bus] "LIJNBUS 1947 trailer type Crossley DAF, "NZHVM"
* [http://www.sa-transport.co.za/buses_and_coaches/sar_sats/sar_sats.html Images of trailer buses in South Africa]
* [http://www.sa-transport.co.za/buses_and_coaches/semi-trailers/s-t.html Images of trailer buses in South Africa]
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