1887

n Journal of the South African Institution of Civil Engineers - Road construction by contractors in South Africa : technical paper

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Abstract

Although South African road construction contracting is a R1,5 billion industry with 20 000 employees, it is functioning only at about one-fifth of its top capacity in 1974. Apart from this structural decrease in demand, the industry has to contend with cyclical changes in demand as well as unconscionably high random changes in funding. The extreme volatility of funding for contractor-built roads is compared with the volatilities of 26 other indicators in the macroeconomy, general construction and road construction sectors. A questionnaire showed that contractors are most concerned with the effects of funding fluctuations on equipment productivity, profitability and training, and support the concept of an independent state roads corporation for the planning, funding and management of all primary roads.


Primary road contract tender rates for the past 16 years are analysed and compared with input costs, labour complement and funding levels to compute trends in labour productivity on contractor-built road construction. It is shown that average turnover per labour unit has been remarkably constant over time, which means that labour productivity has to be inversely proportional to the level of tender rates. The questionnaire revealed that eminent road contractors considered the business cycles to have an adverse effect mainly on profitability, training and unity in industry during recessions, and on research at all times.

Hoewel padkonstruksie deur kontrakteurs in Suid-Afrika 'n R1,5 biljoenindustrie met 20 000 werknemers is, het dit gekrimp tot slegs een-vyfde van 1974 se hoogtepunt en, benewens die strukturele afname in vraag, stoei die industrie ook met sikliese veranderings in vraag en onaanvaarbaar groot toevallige wisselings in befondsing. Die uiterste onbestendigheid in befondsing vir padbou deur kontrakteurs word vergelyk met die wisselings in 26 ander indikators in die makro-ekonomie, algemene konstruksie- en padkonstruksiesektore. 'n Vraelysondersoek toon ook dat kontrakteurs besorg is oor die uitwerking wat die wisselende befondsingsvlakke op toerustingproduktiwiteit, winsgewendheid en opleiding het, en die idee van 'n onafhanklike staatspadkorporasie vir die beplanning, befondsing en bestuur van alle primere paaie steun.


Tendertariewe vir primere padkontrakte oor die afgelope 16 jaar word ontleed en vergelyk met insetkoste en arbeids- en befondsingsvlakke om neigings in die arbeidsproduktiwiteit van padkontrakteurs te beraam. Dit blyk dat gemiddelde omset per arbeider merkwaardig konstant gebly het, wat beteken dat arbeiderproduktiwiteit omgekeerd eweredig is aan die vlak van tendertariewe. Die vraelys toon ook dat die voorste padboukontrakteurs reken dat die sakesiklusse nadelig inwerk op hoofsaaklik winsgewendheid, opleiding en samehorigheid van die industrie tydens resessies, en deurlopend op navorsing.

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/content/civileng1/38/2/EJC26786
1996-01-01
2016-12-08
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