Community-based road construction and maintenance models for problematic expansive soils have been developed.
1: TRIAL CONSTRUCTION
To gather information on occurrences of road disasters and the current state of countermeasures undertaken in South Omo zone.
2: SOCIAL IMPLEMENTATION
To develop maintenance method for roads on foundation of problematic soil processed with soil modifiers.
3: MANUAL & GUIDELINE
Establish operation model of construction measures for problematic soil, and road maintenance and management system.