The dataset represents an estimated cumulative travel time/cost (raster grid) accessibility map, for Kenya's major cities. The map is an output of the sub-Saharan African Corridor, Mobile Warehouse Location pilot project.
Modeled cities are: Nairobi (7,626,752); Mombasa (1,535,899); Nakuru (610,637); Kisumu (567,963)
The calculation of cost/time distance surfaces is based on some assumptions:
A. Road travel time/cost is computed for large trucks, it is assumed accessibility for large cargo freight vehicles, tertiary and local traffic roads are not included;
B. Lake and river navigation are treated as a surface (polygons) not taking into consideration navigation infrastructure (points).
The production of the travel time surfaces followed the steps: rasterization of transportation network vector layers and surfaces; production of cost/time layer; computation of a cumulative cost/time layer from cities (Major Cities Accessibility Map).
Data publication: 2020-08-04
Contact points:
Metadata Contact: FAO-Data
Resource Contact: Nelson Ribeiro
Data lineage:
Produced using OpenStreetMap data for road, railways, cities; GAUL country border; FAO Inland Waters in Africa; FAO Major Rivers in Africa;
Resource constraints:
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 IGO (CC BY-NC- SA 3.0 IGO)
Online resources:
