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Lesson Learned

Continue to refine the use of investment decision models: The cost benefit analysis that underlies MCC’s investment decisions on roads projects relies on the quality and completeness of road economic models, such as the Highway Development and Management (HDM-4) Model or the Roads Economic Decision (RED) Model.

Continue to refine the use of investment decision models: The cost benefit analysis that underlies MCC’s investment decisions on roads projects relies on the quality and completeness of road economic models, such as the Highway Development and Management (HDM-4) Model or the Roads Economic Decision (RED) Model. It is important to ensure that complete and high quality data is collected both for HDM-4/RED ERR modeling purposes that feed into project selection and design and for M&E purposes during and after implementation.  The HDM-4/RED models must be well developed and calibrated at the feasibility study stage and continue to be updated as costs and other design parameters change throughout the construction stages and post-project completion.