scholarly journals Societal context-dependent multi-modal transportation network augmentation in Johannesburg, South Africa

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249014
Author(s):  
Thembani Moyo ◽  
Alain Y. Kibangou ◽  
Walter Musakwa
Keyword(s):  
South African ◽  
Transportation Network ◽  
Routing Algorithm ◽  
Minimum Cost ◽  
Weighted Graphs ◽  
Graph Augmentation ◽  
Transportation Services ◽  
Societal Context ◽  
African Context ◽  
The City

In most developing countries, formal and informal transportation schemes coexist without effective and smart integration. In this paper, the authors show how to leverage opportunities offered by formal and informal transportation schemes to build an integrated multi-modal network. Precisely, the authors consider integration of rickshaws to a bus-train network, by taking into account accessibility and societal constraints. By modelling the respective networks with weighted graphs, a graph augmentation problem is solved with respect to a composite cost taking into account constraints on the use of rickshaws. The solution, is based on finding a minimum cost spanning tree of a merged graph. The method is applied in the South African context, in the city of Johannesburg where rickshaws are not yet a significant part of the transportation system. The implications of the study reveal that using non-motorised transportation services is a viable option of improving mobility in the city. The composite cost introduced herein could be used for new routing algorithm including societal, environmental, architectural contexts and commuter experiences through rating.

Spatial and Temporal Differences in Weekday Travel Durations Between Private-for-Hire Transportation Services and Transit in the City Center

2021 ◽  
pp. 036119812110197
Author(s):  
Baxter Shandobil ◽  
Ty Lazarchik ◽  
Kelly Clifton
Keyword(s):  
Transportation Network ◽  
Central City ◽  
Temporal Analysis ◽  
Time Of Day ◽  
City Center ◽  
Transportation Services ◽  
Regulatory Frameworks ◽  
Transit Services ◽  
Level Information ◽  
The City

There is increasing evidence that ridehailing and other private-for-hire (PfH) services such as taxis and limousines are diverting trips from transit services. One question that arises is where and when PfH services are filling gaps in transit services and where they are competing with transit services that are publicly subsidized. Using weekday trip-level information for trips originating in or destined for the city center of Portland, OR from PfH transportation services (taxis, transportation network companies, limousines) and transit trip data collected from OpenTripPlanner, this study investigated the temporal and spatial differences in travel durations between actual PfH trips and comparable transit trips (the same origin–destination and time of day). This paper contributes to this question and to a growing body of research about the use of ridehailing and other on-demand services. Specifically, it provides a spatial and temporal analysis of the demand for PfH transportation using an actual census of trips for a given 2 week period. The comparison of trip durations of actual PfH trips to hypothetical transit trips for the same origin–destination pairs into or out of the central city gives insights for policy making around pricing and other regulatory frameworks that could be implemented in time and space.

scholarly journals Cartographies génériques, spatiales et identitaires en Afrique du Sud : Margie Orford, Lauren Beukes, Henrietta Rose-Innes

2015 ◽  
pp. 69-82
Author(s):  
Mélanie Joseph-Vilain
Keyword(s):  
Science Fiction ◽  
South African ◽  
Rapid Development ◽  
Crime Fiction ◽  
Afrique Du Sud ◽  
The Feminine ◽  
African Context ◽  
Respective Contribution ◽  
Feminine Body ◽  
The City

This article examines how three South African novelists, Margie Orford, Lauren Beukes and Henrietta Rose-Innes, use crime fiction to write their country. After a brief survey of the rapid development of crime fiction in South Africa and of the critical response it received, the article proposes a reading of Like Clockwork, Zoo City and Nineveh, whereby their respective contribution to crime fiction displays three major features : first, Orford’s novel chimes in with generic conventions ; second, Beukes’s novel combines features borrowed from both crime fiction and science fiction ; and last, Rose-Innes’s novel displaces the detective story narrative into a context where « murder » is invested with a symbolic meaning. By handling the investigation theme in a variety of ways, the three novelists adapt it to the South African context and besides show that the feminine body fits in more or less problematically within the space of the city and of the nation.

scholarly journals Towards a fusion of horizons: Thematic contours for an urban public theological praxis-agenda in South Africa

2014 ◽  
Vol 70 (3) ◽  
Author(s):  
Stephan De Beer ◽  
Ignatius Swart
Keyword(s):  
South Africa ◽  
South African ◽  
Social Life ◽  
Right To The City ◽  
Public Theology ◽  
Urban Migration ◽  
Fusion Of Horizons ◽  
The Commons ◽  
African Context ◽  
The City

This article proposes a ‘fusion of horizons’ in constructing urban public theologies in South Africa. This is done through the introduction of five interrelated themes that have emerged from the on-going knowledge and idea production by a distinguishable counterpoint in contemporary scholarly, intellectual and activist engagement with the urban, in the authors’ own South African context but also wider internationally. In advancing a praxis-agenda for urban public theology, the authors subsequently identify the following, albeit not exhaustive, themes: southern urbanisms and the factor of unprecedented urban migration; ‘right to the city’ and urbanisation from below; a reclaiming of the commons; the making of ‘good cities’; and actors of faith in relation to urban social life.

Exploring recidivism in the South African context.

1998 ◽  
Author(s):  
Belinda Bedell ◽  
Nicholas Challis ◽  
Charl Cilliers ◽  
Joy Cole ◽  
Wendy Corry ◽  
...  
Keyword(s):  
South African ◽  
South African Context ◽  
The South ◽  
African Context

What Matters to South African Bank Customers? A Case Study of four Main South African Banks

2015 ◽  
Vol 6 (1and2) ◽  
Author(s):  
Kingstone Mutsonziwa
Keyword(s):  
Customer Satisfaction ◽  
South African ◽  
Language Usage ◽  
Face To Face ◽  
Bank Resolution ◽  
African Context ◽  
Key Drivers ◽  
Investment Advice

This paper is a follow-up article based on the first article titled Customers speak for themselves: A case of Customer Satisfaction in the four Main South African Banks. Customer satisfaction within the banking industry is very important in the South African context. Although banks are trying their best to give their customers the best service, it is important to continuously measure customer satisfaction and identify service attributes that contribute to overall customer satisfaction for the banks. The data used in the analysis is based on a quantitative survey of 500 randomly selected customers in Pretoria, Johannesburg, Durban and Cape Town were interviewed using a face to face methodology. The key drivers of overall customer satisfaction based on regression analysis for the different banks were helpfulness and innovativeness (ABSA), helpfulness, innovativeness of the bank, resolution of problems and investment advice (FNB), language usage and friendliness of service consultants (Nedbank), innovativeness of the bank, investment advice and use of language (Standard bank). These attributes were important to the overall customer satisfaction and need to be closely monitored by the management of these banks.

‘Limping, Yet Made to Climb a Mountain!’ Re-Reading the Vashti Character in the Hiv And Aids South African Context

2018 ◽  
Author(s):  
Madipoane Masenya (Ngwan’A Mphahlele)
Keyword(s):  
South Africa ◽  
South African ◽  
External Factor ◽  
Hiv And Aids ◽  
African Women ◽  
South African Context ◽  
Land Grabbing ◽  
The Bible ◽  
History Of ◽  
African Context

The history of the Christian Bible’s reception in South Africa was part of a package that included among others, the importation of European patriarchy, land grabbing and its impoverishment of Africans and challenged masculinities of African men. The preceding factors, together with the history of the marginalization of African women in bible and theology, and how the Bible was and continues to be used in our HIV and AIDS contexts, have only made the proverbial limping animal to climb a mountain. Wa re o e bona a e hlotša, wa e nametša thaba (while limping, you still let it climb a mountain) simply means that a certain situation is being aggravated (by an external factor). In this chapter the preceding Northern Sotho proverb is used as a hermeneutical lens to present an HIV and AIDS gender sensitive re-reading of the Vashti character in the Hebrew Bible within the South African context.

Barriers to Entry and Implications for Competition Policy

2018 ◽  
Author(s):  
Simon Roberts
Keyword(s):  
South African ◽  
Vertical Integration ◽  
Competition Policy ◽  
Economies Of Scale ◽  
Productive Capacity ◽  
Barriers To Entry ◽  
Access To Finance ◽  
African Context ◽  
Regulatory Barriers ◽  
Consumer Switching

Competition requires rivals. While this rivalry may come from imports, the development of local capabilities and productive capacity for rivalry, including by black industrialists in the South African context, means understanding the barriers to entry that local producers must overcome. Barriers to entry are also critical for the correct balance between the risks of over- and under-enforcement and are one reason why it has been recommended that countries should adopt different standards for competition evaluation. This chapter draws on studies of barriers to entry in different markets in South Africa to consider the nature and extent of these barriers and the implications for competition policy. It highlights issues related to regulatory barriers, consumer switching costs and branding, routes to market, and vertical integration, as well as economies of scale and access to finance.

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