Evaluation of Cost-Effectiveness and Value-for-Money of DCP-DN Pavement Design Method for Low Volume Roads in Comparison with Conventional Designs, Final Report
This project evaluates unpaved road sections in selected African countries that were upgraded to a paved standard using DCP-DN method
Abstract
The main purpose of the project is to evaluate, in terms of cost-effectiveness (upfront cost savings and life-cycle costs) and value-for-money, a number of unpaved road sections located in selected African countries that were upgraded to a paved standard using the DCP-DN method. Additional objectives are to evaluate the outcome (uptake) and potential impact of the DCP-DN method. The conclusion to be drawn from the very wide range of design evaluations is that, in general, the DCP-DN method is the most cost-effective design option at relatively low TLCs, up to about 0.7 MESA and across all subgrade strengths. However, at TLCs above 0.7 MESA the method gradually becomes less cost effective than the other methods, particularly ORN31, which become more cost-effective in many situations.
This work is part of the Applied Research on Rural Roads and Transport Services through Community Access Programmes in Africa and Asia (AFCAP2 and AsCAP)
Citation
Pinard, M., et al (2019). Evaluation of Cost-Effectiveness and Value-for-Money of DCP-DN Pavement Design Method for Low Volume Roads in Comparison with Conventional Designs, Final Report.London: ReCAP for DFID.
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