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Browsing Research Publications/Outputs by Cluster "Smart Mobility"

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African case studies: Developing pavement temperature maps for performance-graded asphalt bitumen selection

Author: Mokoena, Refiloe ; Mturi, George AJ ; Maritz, Johan ; Mateyisi, Mohau ; Klein, Pieter Date: Jan 2022 The reliable performance of roads is crucial for service delivery, and it is a catalyst for domestic and cross-border spatial development. Paved national roads are expected to carry higher traffic volumes over time as a result of urbanization ... Read more
Analytical techniques to quantify modifiers in bitumen for the South African asphalt pavement industry

Author: Makhari, A ; Hawes, Nomashaka BN ; Mturi, George AJ ; Ojijo, Vincent O Date: Jul 2021 Modifying bitumen is currently a common practice in South Africa. The asphalt pavement industry has seen an increase in use of different types of modifiers in an attempt to improve or extend the properties of bitumen. Common modifiers used ... Read more
Application of drones and image processing for bridge inspections in South Africa

Author: Kemp, Lana ; Roux, Michael P ; Kemp, Mauritz J ; Kock, R Date: Jul 2021 In South Africa, visual inspections for all bridge structures are required every five years. A need was identified to establish if it would be practical to utilise technologies, such as drones and photogrammetry, to improve inspections and ... Read more
Best practices in support of vulnerable road user protection in South Africa

Author: Barnard, HC ; Venter, Karien Date: Jul 2023 Vulnerable road user fatalities continue to make up the bulk of road traffic related deaths in South Africa. Safe System-based measures aim to improve the safety of the road environment for all road users including vulnerable road users. Safe ... Read more
Bridge CNN defect prediction models using existing image data

Author: Kemp, Lana ; Roux, Michael P ; Steyn, WJvdM Date: Nov 2022 In South Africa, it is a requirement for all road agencies to conduct principal visual inspections of all bridge structures every five years. Smaller municipalities do not always have the necessary funds available for principal bridge ... Read more
The Circular Economy as Development Opportunity: Exploring Circular Economy Opportunities across South Africa’s Economic Sectors

Author: Godfrey, Linda K ; Nahman, Anton ; Oelofse, Suzanna HH ; Trotter, Douglas ; Khan, Sumaya ; Nontso, Zintle ; Magweregwede, Fleckson ; Sereme, Busisiwe V ; Okole, Blessed N ; Gordon, Gregory ER ; Brown, Bernadette ; Pillay, Boyse ; Schoeman, Chanel ; Fazluddin, Shahed ; Ojijo, Vincent O ; Cooper, Antony K ; Kruger, Daniel M ; Napier, Mark ; Mokoena, Refiloe ; Steenkamp, Anton J ; Msimanga, Xolile P ; North, Brian C ; Seetal, Ashwin R ; Mathye, Salamina M Date: Dec 2021 The intention of this book is to present the CSIR’s position and interpretation of the circular economy, and to use it to drive discussions on where immediate circular economy opportunities are achievable in South Africa. Opportunities that ... Read more
Climate change adaptation in the African roads sector: Constraints, opportunities and policy challenges [poster]

Author: Maritz, Johan ; Arnold, Kathryn A ; Roux, Michael P ; Le Roux, Alize ; Verhaeghe, Benoit MJA Date: Oct 2019 Roads play a vital role in strengthening the socio-economic development of regions in Sub-Saharan Africa by providing local communities with critical connections between essential market points, service towns and infrastructure. The United ... Read more c b
Community perspectives as an essential element of resilience thinking: Resilience from a view of inequality

Author: Dlamini, Sifiso B ; Meyer, Isabella A Date: Dec 2020 Resilience is a popular concept in development studies, particularly in research and development on how Information and Communication Technologies (ICTs) can be used to improve livelihoods. As much as the primary focus is on using ICTs to ... Read more
Comparing dynamic road wear of a performance-based standards and baseline vehicle

Author: Steenkamp, Anton J ; De Saxe, CC ; Kienhöfer, F ; Kemp, Lana Date: Jul 2021 The paved road network is a critical asset to any country and its economy. South Africa's paved road network has an estimated value in excess of R2 trillion. This asset is threatened by a backlog in maintenance of more than R416.6 billion, ... Read more
Conceptualising a benefit assessment framework for the South African National Roads Agency Ltd SOC research and development programme

Author: Rust, FC ; Sono, P ; Van Dijk, G G ; Fourie, H ; Smit, Michelle A Date: Sep 2021 In low-income countries Research and Development funding is limited and has to be invested with a view of optimum return, both economic return but also “softer” benefits such as human resource development. The assessment of these benefits is ... Read more
Contiguous aggregate packing as common principle for benchmarking asphalt density, stiffness and permeability control

Author: Horak, E ; Komba, Julius J ; Maina, J ; Sebaaly, H ; Muller, J Date: Mar 2022 Contiguous aggregates are aggregate sizes that consecutively follow a typical aggregate grading curve. Porosity calculation is possible for a binary or longer ranges of contiguous aggregates. Porosity is a fundamental density indicator and ... Read more
Correlating the asphalt-binder high-temperature properties (DSR) to HMA permanent deformation (RLPD) and field rutting: A laboratory-field study

Author: Walubita, LF ; Mahmoud, E ; Fuentes, L ; Prakoso, A ; Lee, SI ; Souliman, M ; Komba, Julius J Date: Nov 2020 Asphalt-binders are part of the key material constituents affecting the performance of hot-mix asphalt (HMA), and ultimately, the field performance of flexible pavement structures. Quite often, it is desired/useful to predict the HMA permanent ... Read more
Correlating the asphalt-binder MSCR test results to the HMA HWTT and field rutting performance

Author: Walubita, LF ; Ling, M ; Fuentes, L ; Komba, Julius J ; Mabrouk, GM Date: Sep 2022 Asphalt binder is one of the key constitutive components of hot-mix asphalt (HMA) that considerably affects its rutting performance. In particular, the high-temperature rheological properties measured from the multiple stress creep and recovery ... Read more
Creating pathways to impact: Investing in supply chain and logistics capacity development in Africa

Author: Grobbelaar, S ; Meyer, Isabella A ; Van Eeden, J ; Vandaele, N ; Van Wassenhove, L ; Besiou, M ; Decouterre, C ; Rafter, S ; Nolting, C ; Dondofema, Richmore A Date: Mar 2023 African logistics and supply chain management capabilities are essential to the performance of the continent's commercial and humanitarian supply chains. This study reviewed the challenges for researchers and practitioners in advancing logistics ... Read more
Design and construction of sustainable climate resilient rural access road infrastructures

Author: Komba, Julius J ; Langa, R ; Paige-Green, P ; Verhaeghe, Benoit MJA ; Mokoena, Refiloe Date: Dec 2021 The chapter is organized and structured as follows; the introduction section is followed by an overview of climate change-related challenges affecting Mozambique. The study methodology (approach) is then described, followed by a discussion ... Read more
Design and manufacturing of an aggregate abrasion test device for testing in high acceleration field

Author: Xungu, Sipho ; Mgangira, Martin B ; Giani, John C Date: Nov 2021 This paper describes the design and manufacturing of a mechanical system, the Aggregate Abrasion Test Device (AATD), which comprises of a rolling model drum, with the purpose of obtaining experimental data that is subsequently used to quantify ... Read more
Developing a truck rollover risk calculator for South Africa

Author: Ferreira, A ; De Saxe, C ; Steenkamp, Anton J ; Nordengen, P Date: Jul 2022 The Static Rollover Threshold (SRT) is an important metric for characterising a heavy vehicle’s inherent stability and risk of rollover. Current methods of assessing SRT include a tilt-table test and multi-body dynamics simulation which can ... Read more
Developments in Sustainable Geomaterials and Environmental Geotechnics

Author: Yao, K ; Zhenyu, M ; Komba, Julius Date: Jul 2021 This book presents the advancements in the field of sustainable materials in pavement engineering and related geotechnical engineering issues and sheds light on recent developments and advancements in characterization, design, construction, ... Read more
Enhanced methodology for visual bridge inspections in South Africa

Author: Kemp, Lana ; Steyn, W ; Roux, Michael P Date: Sep 2022 This paper introduces the application of technology solutions into the realm of bridge inspection methodologies in South Africa, aiming to enhance the current visual bridge inspection methodology. Unmanned Aerial Vehicles (UAVs) can be used ... Read more
A framework of key growth factors for small enterprises operating at the base of the pyramid

Author: Van der Merwe, MD ; Grobbelaar, SS ; Meyer, Isabella A ; Schutte, CL ; Von Leipzig, KH Date: Nov 2020 Enterprises operating at the Base of the Pyramid (BoP) find it difficult to simultaneously achieve economic (profitable growth) and social (poverty alleviation) outcomes. This study builds on a previously published systematic literature review ... Read more

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