1. RED Model Case Study: Economically Justified Levels of Road Works Expenditures on Unpaved Roads January Rodrigo Archondo-Callao Senior Highway Engineer, ETWTR The World Bank

2. Rural Transport Infrastructure Notes
RT1 - Typical Unpaved Roads: Roughness Predicted by the HDM-III Model
RT2 - Unpaved Roads: Roughness Estimation by Subjective Evaluation
RT3 - Paving of Unpaved Roads: Economically Justified Paving Costs
RT4 – Designing a Rural Basic Access Road Project:
The Case of Andhra Pradesh, India
RT5 - Economic Analysis of a Rural Basic Access Road Project: The Case of Andhra Pradesh, India
TN2 - Economically Justified Levels of Road Works Expenditures on Unpaved Roads

3. Economically Justified Levels of Road Works Expenditures on Unpaved Roads
Unpaved roads require periodic road works to maintain a certain road condition over time that require planning and economic justification.
A main concern is defining a proper level of investments and quality of maintenance on these roads.
This note presents a methodology for an analytical study done to access economically justified levels of road works expenditures on unpaved roads with different traffic levels.
The results should be considered no more than a first approximation of country specific results.

4. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

5. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

6. Economically Justified Levels of Road Works Expenditures on Unpaved Roads
TN2

7. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

8. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

9. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

10. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

11. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

12. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

13. Economically Justified Levels of Road Works Expenditures on Unpaved Roads

14. Economically Justified Levels of Road Works Expenditures on Unpaved Roads