Micheline
Encyclopedia
Michelines were a series of rubber-tyred trains developed in France in the 1930s by various rail companies and rubber-tyre manufacturer Michelin
Michelin
Michelin is a tyre manufacturer based in Clermont-Ferrand in the Auvergne région of France. It is one of the two largest tyre manufacturers in the world along with Bridgestone. In addition to the Michelin brand, it also owns the BFGoodrich, Kleber, Riken, Kormoran and Uniroyal tyre brands...

. Some Michelines were built in the United States by the Budd Company
Budd Company
The Budd Company is a metal fabricator and major supplier of body components to the automobile industry, and was formerly a manufacturer of stainless steel passenger rail cars during the 20th century....

.

Most Michelines were self-propelled, but a number of locomotive
Locomotive
A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...

-hauled trainsets were also produced.

Michelines offered unprecedented ride smoothness, but they soon proved to be problematic because the low load that the wheels could bear limited railcar sizes and demanded a high number of tyres (up to 20) per car. Furthermore, they were subject to flat tyres, unlike cars with steel wheels.

Eventually, the Michelines gave way to rubber-tyred metro
Rubber-tyred metro
A rubber-tyred metro is a form of rapid transit system that uses a mix of road and rail technology. The vehicles have wheels with rubber tyres which run on rolling pads inside guide bars for traction, as well as traditional railway steel wheels with deep flanges on steel tracks for guidance through...

s, pioneered by the RATP (Paris transit authority) which introduced them for their superior acceleration characteristics, in order to increase the capacity of their subway lines.

However, as time went by, the extra complexity of rubber-tyred rolling stock meant that they were superseded by conventional steel-wheel rolling stock.
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