Road Inventory & Condition Surveys 2022

Our team conducted a comprehensive road inventory and condition assessment in Cluster 1 Counties using QGIS-based geospatial tools. The objective was to help Road Agencies to make informed, data-driven decisions for road maintenance and infrastructure planning.

Location: Project involved 10 counties – Nairobi, Nakuru, Uasin Gishu, Nyahururu, Kiambu, Elgeyo Marakwet, Turkana, Baringo, Laikipia and Samburu

Client Needs:

• A reliable, up-to-date road inventory
• Classification of road segments by surface type and condition
• Easy-to-interpret visualizations for maintenance prioritization
• A scalable, low-cost GIS approach that can be replicated across other counties

Our Approach

Using QGIS, our GIS and civil engineering team developed a streamlined workflow to collect, process, and visualize road condition data:

Data Collection:

• Mobile GPS tracking using QField
• Road condition ratings: Good, Fair, Poor
• Surface type: Bitumen, Gravel, Earth
• Drainage and shoulder status
• Geotagged photographs of each road segment

 GIS Mapping & Analysis:

• Integrated field data into QGIS for spatial analysis
• Classified roads using symbology for quick visual insight
• Created heat maps of deteriorating segments
• Overlaid road data with critical infrastructure (schools, health centers) for impact analysis

Reporting:

• Delivered detailed PDF maps and interactive web maps
• Generated actionable road maintenance priority lists
• Provided a replicable QGIS template for future surveys