• Deterioration has two general causes: environmental due to weathering and aging, and structural caused by repeated traffic loadings.
  • Poor drainage conditions also contribute to pavement deterioration. Surface drainage and lateral drainage are important.
  • Most funding is derived from Act 51 (gas & weight tax), which has been reduced as people drive less and cars become more efficient in MPG.
    • Lack of funds to provide for adequate maintenance (PASER 4-7)
    • Without proper maintenance, road fall into failure (PASER 1)

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