Table 4

Distance and travel time to the nearest outlet versus the actual outlet visited, by modelled distance measure

Large urban (Nairobi)Medium urban (Nakuru)Small urban (Kilifi)Semiurban (Migori)Total
Euclidean distances (km)Mean distance to nearest outlet of same type offering method0.330.530.681.250.71
Mean distance to visited outlet0.50.990.911.931.07
Modelled least cost distances (km)Mean distance to nearest outlet of same type offering method0.350.560.741.340.76
Mean distance to visited outlet0.531.050.982.071.15
Modelled travel times (min:s)Mean time to nearest outlet of same type offering method3:544:366:429:486:24
Mean time to visited outlet5:427:308:4811:428:30
Mean time to visited outlet (among those going to nearest)3:545:246:189:546:30
Mean time to visited outlet (among those not going to nearest)7:248:5413:2413:2410:42
Self-report and modelled time differences, by transport type
Mean time to visited outlet (walked)Self-reported travel time (min:s)14:0511:5414:4120.0815:05
Modelled travel times (min:s)6:039:0410:0014.119:19
Difference8:02***2:50*4:41***5:57***5:47***
Mean time to visited outlet (other means of transport)Self-reported travel time (min:s)12:2510:2415:2016:3814:35
Modelled travel times (min:s)1:284:593:349:026:16
Difference10:57***5:25***11:46***7:36***8:19***
  • Significance levels: *p<0.05; **p<0.01; ***p<0.001.