A review of road maintenance by the South African National Roads Agency
In South Africa, a review of road maintenance by the South African National Roads Agency indicates that delaying road maintenance for three years leads to increased costs of six times the original costs of preventative maintenance. If road maintenance is delayed for five years, costs rise to 18 times the preventive cost.
ZA. 2004b. Annual Report 2004. Pretoria: The South African National Roads Agency. [#2224]