In a frayed black-and-white photograph of the Standard 3 Class of 1960, of the rustic Umdhloti State Aided Indian Primary School, there are 33 pairs of hopeful fledgling eyes staring out of the picture. At a closer examination of the frame, a handsome face arrests my attention - the face of one named Cram, a countenance of innocence and deep contemplation, beyond his years. The child stands in the front row, in uninterrupted sight of the camera, wearing a short-sleeved white shirt, grey short pants and his feet bare.
The article "You can but you may not" in the feature "From the CEO's Desk" (Civil Engineering, July 2012) is misleading and ill-informed in its references to the Engineering Council of South Africa (ECSA) and the registration of engineering practitioners. The response below by ECSA seeks to place the matter in its true perspective.
Needless to say, civil engineering has been an aspect of life since the beginning of human existence. The earliest practice of civil engineering may have commenced between 4000 and 2000 BC when humans started to abandon their nomadic lifestyles, creating a need for the construction of shelter. For a long time there was no clear distinction between civil engineers, scientists, mathematicians, businessmen or even farmers. Still today the civil engineering industry extends its reach so broadly that we, as civil engineers, often find ourselves to be in an 'identity crisis'.
A lot has been said in the press over the last few months about e-tolling. This article does not aim to give another summary about what happened in Gauteng, but aims to provide a view on tolling and explain which aspects work well, and which are more problematic. The article also suggests some points that could be considered as a way forward for the Gauteng highway system.
Imagine a city without cars. Imagine traffic-free precincts where people can move about freely and in complete safety without vehicles, noise or smells to disturb them. Is such a city possible? Yes - and here's how.
In most urban areas the demand for road space has increased to a point where the traffic demand during peak periods far exceeds the available road capacity, or supply, resulting in congestion. The higher the levels of congestion, the longer it takes to reach one's destination. This gets to the point where road users make certain decisions regarding their travel plans, such as to start their trips earlier or later to miss the peak periods, which results in peak spreading. Prior to the upgrading of the Gauteng freeways it was recorded that the peak period (this being the period where the freeways were running at their maximum capacity) was extending by 15 minutes every year.
Internationally, the trend is to provide real-time information through the implementation of Advanced Traveller Information Systems (ATIS). This article provides a summary of the ATIS system for the Jammie Shuttle service at the University of Cape Town (UCT).
The City of Johannesburg has adopted an urban development policy which focuses on the need to create compact cities and limit urban sprawl in order to use urban infrastructure effectively. The primary measure to support this policy is the Rea Vaya Bus Rapid Transit (BRT) system.
The South African National Roads Agency SOC Limited (SANRAL) recognised the need to reduce the potential for accidents on a section of the N2 near Mtubatuba which passes through the township of KwaMsane. Goba (Pty) Ltd were appointed by SANRAL as the consulting engineers for the design and construction supervision of the KwaMsane Community Access Roads and Pedestrian Facilities, Phase 2. The project lies within the Mtubatuba Local Municipality and is situated adjacent to National Route 2, Section 30, near Mtubatuba in Northern KwaZulu-Natal.
The seashore marks a phase change in the nature of the surface of the earth from solid to liquid. Since the liquid phase, the surface of the sea, is in a constant state of agitation, the physical boundary is in constant motion, but it does so within a defined fuzzy zone. There are two independent drivers: tidal waves (equinoctial spring tides in the extreme) which are deterministic, and wind waves (storm waves in the extreme) that are probabilistic. The magnitude of each varies enormously, from negligible to extreme in different parts of the world, and does so each independently of the other, although there is some tendency for coastal morphology to induce inverse correlation. It becomes a matter of policy, within the constraints of the natural physical processes, how to assess, select from and combine these two to demarcate a seashore boundary.
A number of innovations were introduced by Maccaferri Southern Africa during the construction of mechanically stabilised earth walls (MSEW) at a multilevel road intersection near Richards Bay in KwaZulu-Natal. Following a presentation on MacForce, an enquiry was received from the consultants regarding its possible use on this project.
According to Landelahni CEO Sandra Burmeister, crucial infrastructure schemes across the world are competing for a dwindling skills pool amid fears that the skills shortage could delay projects in major markets. Driven largely by China and India, construction is expected to grow globally by 67% over the next eight years.
Cordless inspection camera from Bosch looks into hard-to reach places
Cutting-edge technology and reliability with Voith's eco-friendly water-operated turbo couplings
New directory published by the GMBA
New category format for CMA awards takes off
Esorfranki geotechnical begins continuous jacking project
American accolade for UCT trio
The traditional approach to civil engineering contracts is set out in the following documents (which were published during the 1970s and early 1980s):
■ General Conditions of Contract for Use in Connection with Works of Civil Engineering Construction (fifth edition) (GCC 1982).
■ South African Association of Consulting Model Form 1 All Disciplines, Articles and Conditions of Agreement
■ Civil Engineering Quantities (third edition) (CEQ73)
■ SABS 1200, Standardised specification for civil engineering construction
■ SABS 0120, Code of practice for use with standardised specifications for civil engineering and contract documents