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REVIEW: Are we learning from China's experiences to minimize the negative impacts of concrete usage?

The use of concrete exploded to fuel China's rise. Now the costs of this weighty material are being counted. China's recent addiction to concrete stands in stark contrast to its historical reliance on timber as the primary building material. This shift, driven by rapid urbanization, has catapulted China to the forefront of global cement production, accounting for over half of the world's annual output. However, the majority of this concrete is consumed domestically, with little being exported. China's urban centers, despite their impressive growth, face a significant challenge—they are sinking. A recent study reveals that vast swathes of the population now reside in major cities experiencing subsidence at a rate exceeding 3mm per year. In certain areas, such as parts of Beijing, the sinking rate is even more pronounced, reaching over 45mm annually. The study also projects that by 2120, approximately a quarter of China's coastal land will be submerged below sea level

OPINION: Quality infrastructure lays foundation for growth

South Africa's government’s focus on infrastructure development could serve as the catalyst needed to reignite economic growth. However, to be successful, the private sector must urgently step up to play its part says Roelof van der Berg.


Much like building a skyscraper requires a sturdy foundation, infrastructure is often described as the backbone needed to build prosperous economies. With this in mind, there is reason for optimism looking ahead to 2024 and beyond as, much like China’s example has demonstrated, government’s focus on infrastructure development could serve as the catalyst needed to reignite economic growth. However, to be successful, the private sector must urgently step up to play its part.

Quality infrastructure is the driver of trade and commerce, facilitating the smooth transportation of goods, services and people across regions both within and past a country’s borders. It is also responsible for providing the energy needed to fuel industrial and manufacturing activities and the modern communication networks required by digital economies. Furthermore, infrastructure underpins human and socio-economic development, improving access to educational and healthcare facilities and economic opportunities.

Understanding the critical role of infrastructure as an engine for fuelling economic growth, infrastructure investment has formed a central pillar of China’s economic strategy for decades. Between 2002 and 2016, the Chinese government tripled its infrastructure investment as a share of GDP from 8% to almost 24%, during which time the country experienced an average annual real GDP growth of 9.6%.

By contrast, the Infrastructure Consortium of Africa (ICA) estimates that poor and ageing road, rail and harbour infrastructure in African countries generally may currently be adding as much as 30%-40% to the cost of goods traded across the continent. This is placing an undue burden on consumers and businesses and strangling growth.

So, by continuing its diligent efforts to lift the various logistics constraints facing the country, as well as to roll out world-class national infrastructure to support the needs of SA’s expanding population, government can achieve the 5% growth target needed to stimulate job creation and eliminate poverty and unemployment.

 As a result, South Africans should be comforted that government has allocated R8.47bn to public works and infrastructure in the 2023/24 year as evidence of its commitment, as outlined in the Medium-Term Budget Policy Statement (MTBPS). Furthermore, an additional R1.18bn was allocated this year for reconstructing and rehabilitating municipal infrastructure damaged by disastrous floods in KwaZulu-Natal, Eastern Cape, Limpopo and Mpumalanga.

Critically, however, infrastructure development and the task of reaching the 5% growth target cannot and should not be the responsibility of government alone. There is no denying that SA has suffered a difficult few years as the aftereffects of the Covid-19 pandemic, geopolitical shocks and what the International Monetary Fund has described as a “limping” world economy have weighed heavily upon our own economy and the fiscus.

 So, as government faces the enormous challenge of balancing the many urgent demands on its limited budget, the private sector must engage to seek where it can be of service in investing in vital infrastructure projects. Quality infrastructure acts to boost investment confidence in countries, which in turn attracts further investment in areas such as infrastructure. So, by leading the way in supporting infrastructure projects in SA, local investors can spark a virtuous economic cycle that benefits all.

Developers, too, have a role to play in nation-building by ensuring that infrastructure is delivered at a high standard, on time, and within budget. In many cases in the past, private companies have played a role in causing wastage and cost overruns in major projects. In response, the entire industry must make every effort to improve governance, transparency and accountability in public infrastructure projects.

Many governments across Africa have increased their infrastructure spending, and the Africa Finance Corporation has even described Africa as being on the precipice of a 30-year infrastructure boom. As the continent’s most industrialised nation, it is encouraging to see SA’s public sector and private developers at the forefront of this shift, working in tandem to address the formidable infrastructure and service delivery challenges in our path and unlock economic growth to enhance the welfare of our communities.

This hardhatOPINION was written for the Sowetan by Roelof Van der Berg is CEO of the Gap Infrastructure Corporation

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