The following classification is used:
Equivalent to Dept. of Transport “B” roads. Generally, these are tarred roads that link large towns in Namibia .
Dept. of Transport “C” roads. These form secondary links between major towns, smaller towns and places of interest.
Dept. of Transport “D” roads. These normally form minor links between higher order roads and between small settlements. Generally these are the lowest order roads that are maintained by the Dept. of Transport and therefore road signs are still in evidence as well as road maintenance.
These are roads that are generally not maintained by the Dept. of Transport, but that have communication value for villages and farmsteads.
Dirt roads and prominent footpaths that are not classified “other roads”. In an area where there are many interconnected footpaths, and it becomes impractical to map them all, the idea is to indicate that there is a link between the places in question.
In densely populated area, you can find a nearly infinite number of small tracks and footpaths. Displaying all these lines on the map is impossible (or would completely clutter the map). Accordingly, a selection was done. The principle of this selection is to indicate that a place (village, group of huts, waterpoint) is or is not accessible by a track. The track indicated on the map to reach this point from a main road is not necessarily the only one, and not necessarily the most important one. This is especially important to remember when using 1:250'000 maps, because the simplification is more important on these maps.
It is also important to note that in many areas, tracks are changing very often: some tracks are abandoned and quickly come impracticable, new tracks are created, and portions of tracks are adapted to flooded area, etc. Keep in mind also that some tracks (and even roads) are not practicable during some season.
The roads classification comes from the Roads Authorities and do not necessarily gives a good indication of the practicability of the road. Note also that the numbers associated to the roads on the map are “Road Numbers” and not “Route Numbers”. Road numbers are those usually indicated on signs placed along the roads on the ground.
In many places, railways are very close to roads, and their symbol would be superimposed to those of roads. In such situation, the symbol of railways was moved on the map to enhance readability (the position of the road is kept unchanged), but the relative position of both elements is always preserved (if the rail is on the left side of the road, the same is indicated on the map).