Standard coding systems (SCS) for bill of quantities items simplify and encourage the use of computer-aided tendering (CAT) systems. In the United Kingdom the use of SCS is supported by both contractors and quantity surveyors. To achieve widespread acceptance of SCS in South Africa it is proposed that the standard method of measurement (SMM) be revised to incorporate such a coding system. This approach appears to have the support of contractors, but quantity surveyors seem hesitant about the concept In this paper the background to the introduction of SCS and CAT systems in the UK is given and the advantages gained by both contractors and quantity surveyors are illustrated. The effect that computers are likely to have on methods of communication between the professions and contractors is also descriptionbed and the impact that SCS is likely to have on this communication is stressed.
The roundabout has been the subject of limited research in South Africa and to date has received little serious allention as an alternative to existing traffic control methods. However, the research into program ARCADY2, permitting the analysis of the roundabout facility in comparable terms (namely capacity and delays) with other forms of intersection control, now provides a useful tool for the traffic engineer to assess the appropriateness of introducing such a facility to the road network. The roundabout is also particularly applicable in a rapidly developing community in terms of cost and safety advantages and further research is motivated to produce a non-computerized method of analysing potential roundabout sites.