n Journal of the South African Institution of Civil Engineering = Joernaal van die Suid-Afrikaanse Instituut van Siviele Ingenieurswese - Choice of technique analysis of the drainage structures component of a road construction project : technical paper

Volume 42, Issue 1
  • ISSN : 1021-2019



The viability of employment-intensive (EI) techniques in road construction has been confirmed through research for a range of activities. This paper focuses on the drainage structures component of road construction, as this has not been considered to the same depth in previous research. It consists of two elements, namely the development of a technique selection methodology based on COTA (Choice Of Technique Analysis) and a subsequent analysis to select appropriate techniques based on case study projects. The output comprises the appropriate mix of labour- and machine-based techniques along with the appropriate design type for different sets of circumstances, which can be referred to as appropriate practice, or EI practice per definition. It was concluded that under most circumstances the substitution of EI practice for current practice almost doubles the local content of expenditure without extra cost. EI practice is recommended as the norm in the execution of such projects - not only for isolated low-level bridges and maintenance on low-traffic rural roads, but also for the drainage structures component of road construction projects. Whereas general guidelines are provided, it is recommended to practitioners that the selected mix of techniques for individual projects be based on a COTA analysis.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error