Depreciation

Memo describing modelling issues and how addressed in HDM-4

How capital costs were to be modelled in HDM-4

Paper by John Hine on the proposed modelling of utilization and service life.

Memo on issues with capital cost modelling in HDM-4

Memo on capital costs modelling.

Comprehensive review of procedures and preliminary recommendations for HDM-4

FORTRAN code for predicting Optimal Life deterioration.

FORTRAN code for predicting Optimal Life deterioration.

Memo from Clive Daniels on the proposed utilization modelling in HDM-4.

National Roads Board Road Research Unit Bulletin. Detailed analysis on the modelling of vehicle depreciation costs.