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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

ageing process

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Asset Management and Maintenance Asset Management
  • Definition : Third or last portion of the bathtub curve, which identifies the increasing probability of failure of a system, equipment or component as it approaches the end of its service life.