Highway roads
design involves application of grading, surface texture, and sight distance
concepts.
These concepts
are vital in providing road facilities which are safe, efficient, comfortable,
economical and structurally sound.
Road design is
controlled by the following factors
- Reduction of environmental pollution in terms of noise and air pollution.
- Reduction of number and severity of accidents road safety measure
- Traffic volume and Directional distribution.
- The maximum safe speed that can be maintained over a section of road when design or ideal or favourable operation condition exists.
- Topography and land use.
The various elements of highway location and design are;
