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Table 1 Data used to estimate travel time to public health facilities in Swaziland

From: Fine-scale malaria risk mapping from routine aggregated case data

Data layer Category Speed (km/h)
Land cover Tree cover, broad leaved deciduous or evergreen 5
  Tree cover, needle leaved, deciduous or evergreen 5
  Tree cover, other 2
  Shrub cover 5
  Herbaceous cover 3
  Sparse herbaceous 4
  Cultivated and managed areas 5
  Bare areas/desert 2
  Water bodies/rivers 0
Digital elevation (slope) 0° (flat) 5.00
  -5° 5.27
Roads Motorway/trunk 80
  Primary/secondary 60
  Tertiary/unclassified 10