Public Works (TP) indices are cost indices for different  public works activities, apprehended from 7 line-items in a cost accounting approach: "capital goods", "labour costs" once called "salaries and costs", "energy", "materials", "miscellaneous expenses", "transport", “waste” similar to the productivity economists' approach called "KLEMST" (K = capital for "material", L = Labour ," E = energy, M = materials, S = Service for "miscellaneous expenses" T = transport). The structure and weights of various construction indices have been reviewed on the occasion of new base and reference 2010.

(See also methodological note)