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Table 1 Description of data types, mode of travel (motorized, cycling and walking) and speeds used in the modelling travel time to public health facilities distributing LLINs in Western region of Kenya

From: Spatial models for the rational allocation of routinely distributed bed nets to public health facilities in Western Kenya

Data (mode of transport) Road class Description Speed (km/hr)
Primary road (vehicular) A Strategic corridors connecting international boundaries at specific immigration and entry points 50
B Link national trading and economic hubs, county headquarters, important national centers and connects to class A road 50
Secondary road (vehicular) C Link county and regional headquarters to each other and to roads of class A or B 30
D Link constituency headquarters, town centers and other municipal centers to each other and to higher-class roads 30
County road (bicycling) E Major feeder roads linking important constituency centers They carry local traffic and link constituency centers 11
G Carry’s farm produce/inputs to and from the markets 11
L Collect traffic from the local roads to the arterial roads 11
Rural roads (walking) R Roads accessing rural areas 5
S Roads accessing sugarcane growing areas 5
T Roads accessing tea growing areas 5
U Unclassified rural roads 5
Wetland (walking) Include inland marsh lake, floodplain wetland, forest/shrub wetland, peat bogs, mangrove and salt marsh etc 1
Shrub land (walking) Covered with shrubs (>30%) including deciduous and evergreen shrubs, and desert steppe (>10%) 4
Grassland (walking) Lands covered by natural grass cover over 10% 3
Cultivated land (walking) Lands used for agriculture, horticulture gardens, including paddy fields, irrigated and dry farmland, vegetation and fruit gardens 5
Artificial surfaces (walking) Lands modified by human activities, including all kinds of habitation, industrial and mining area, transportation facilities and interior urban green zones 5
  1. The travel speeds are based on previous comparable studies