Table 1 Travel speed assigned to different land surfaces and their respective mode of transportation

Primary road (Motorized)

A

Roads connecting international boundaries at specific border points.

B

Connects county headquarters and other national economic centres or towns to class A road.

Secondary road (Motorized)

C

Link county headquarters to each other and to either class A or class B.

D

Link town centers and other sub county centers to each other and links them to Class A, B or C.

County road (Cycling)

E

Major feeder roads that link constituency centers

G

Serve to transport farm produce to the markets

Rural roads (walking)

L

Connects local roads to the arterial roads

R

Roads in rural areas

U

Unclassified rural roads

Dense Forest (walking)

Grassland (walking)

Cropland (walking)

Bare land (walking)

Wetland (walking)