African Transport Studies最新文献

{"title":"Accessibility planning: Overlooked or absent by design in medium-term development plans? A catalog of the policy orientations for 52 diverse municipalities in Ghana","authors":"Justice P. Tuffour ,&nbsp;Jones Adu-Mensah ,&nbsp;Tracy Morrison ,&nbsp;Ransmond Opoku Berchie","doi":"10.1016/j.aftran.2024.100015","DOIUrl":"10.1016/j.aftran.2024.100015","url":null,"abstract":"<div><div>Metrics for cataloging regional transportation planning success are quickly evolving from the business-as-usual mobility measures like roadway level of service towards more sustainable accessibility indicators. Indicators that connect people to opportunities. While this conventional shift gains momentum in modern planning, the exhibition of accessibility planning strategies appear to be a hit-or-miss endeavor – either supplanted by the age-old \"build first, make amends later\" paradigm or vaguely referenced in policy documents. This rhetoric of mobility <em>versus</em> accessibility-centered planning <em>(which we call AVM orientation)</em> and its application often grapples with uncertainties and remains inconsistent in many developing regions, limiting a clearer understanding of their current planning orientation. Our paper addresses this gap by using normalized accessibility score indexing to capture the orientation and integration of accessibility planning for 52 diverse municipalities in Ghana. By syllogizing data from the most recent medium-term development plans of selected Metropolitan, Municipal, and District assemblies (MMDAs) nationwide and the National Transportation Policy framework, the study examines the current planning orientations, gaps in performance measures, and policy directions for adopting more sustainable metrics. We find that development planning only loosely acknowledges the principles of accessibility planning, often using performance metrics incongruent with conventional sustainable outcomes. Less than a third of MTDPs include any land use and transportation integration measures, and fewer still account for vehicle miles traveled (VMT) reduction. Among the MMDAs that capture accessibility goals, development strategies still prioritize road infrastructure expansion, especially evident in small-sized Districts where the underdeveloped transportation network necessitates these prerequisite measures. The paper discusses implications for planning policy and practice while offering recommendations for bridging the crossroads for accessibility in long-range development planning.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100015"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of injury severity levels and contributory factors in traffic crashes at signalized intersections under mixed traffic conditions in a low- and middle-income country","authors":"John H. Kodi ,&nbsp;Evans Msaki ,&nbsp;Angela E. Kitali ,&nbsp;Henrick J. Haule ,&nbsp;Sultan Ali","doi":"10.1016/j.aftran.2024.100019","DOIUrl":"10.1016/j.aftran.2024.100019","url":null,"abstract":"<div><div>Traffic crashes are more likely to occur at intersections due to the complex nature of the traffic movement. This study explored the relationship between the injury severity outcome of intersection-related crashes and the contributing factors such as roadway, environmental, temporal, traffic, and land use characteristics. The analysis was based on five years (2016–2020) of three-legged and four-legged intersection-related crashes in Dar es Salaam, Tanzania. The study used a hybrid approach combining the latent class cluster analysis (LCA) and a logistic regression model in analyzing the injury severity of intersection-related crashes. Three clusters were identified for the three-legged intersection crashes based on traffic volume, lane width, number of lanes, and median type. For four-legged intersections, three clusters were identified based on land use, lane width, and time of the day. A logistic model was developed to identify factors contributing to the injury severity of intersection-related crashes. The results indicated that adverse weather conditions were associated with a lower likelihood of fatal/severe injury for both three-legged and four-legged intersections in the whole dataset and each specific cluster. This study provides an insightful understanding of the effects of these variables on the severity of intersection-related crashes and beneficial references for developing effective countermeasures for severe crash prevention. Also, the results of this study can help developing nations like Tanzania develop a strategic safety plan focusing on improving safety across all signalized intersections.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100019"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using commercial floating car data to remotely infer the presence of potholes along rural road segments","authors":"Megan M. Bruwer,&nbsp;S.J. Andersen","doi":"10.1016/j.aftran.2024.100017","DOIUrl":"10.1016/j.aftran.2024.100017","url":null,"abstract":"<div><div>Potholes contribute to crashes, cause extensive damage to vehicles, and lead to further deterioration of road infrastructure. Remote detection of potholes is of great interest to travelers wishing to avoid pothole riddled routes, and to roads authorities for timeous protection of infrastructure. This study developed a method that can automatically and remotely infer that potholes exist along road segments using readily available traffic data. A simple <em>Pothole Occurrence Probability (POP) Model</em> is proposed that uses only commercial floating car data (FCD) as input. Commercial FCD are anonymized, widespread, and passively collected by GPS enabled devices, making FCD particularly appropriate for input to remote traffic monitoring. The application of FCD to infer pothole presence is unique and has not been previously investigated. Pothole presence is shown in this paper to significantly impact harmonic mean speeds reported by FCD along rural roads in South Africa. The relationship between pothole severity, evaluated from test-vehicle GPS data and dashboard-camera footage, and FCD-reported speed profiles, were empirically investigated along 69 km of training routes to develop the <em>POP Model</em>. The model was evaluated along six testing routes, with a total length of 189 km. 85 % of the testing routes were correctly categorized as either having or not having potholes, while 96 % of potholed road segments were correctly identified. The <em>POP Model</em> has wide application potential, firstly as input to navigation applications for travelers, and secondly through incorporation into pavement management systems to continuously monitor vast rural road networks.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The aftermath of Covid-19: Changes in travel mode attributes for young males and females in Cape Town","authors":"Jennifer Louisa Baufeldt,&nbsp;Marianne Vanderschuren","doi":"10.1016/j.aftran.2024.100016","DOIUrl":"10.1016/j.aftran.2024.100016","url":null,"abstract":"<div><h3>Introduction</h3><div>The effects of considering different COVID-19 pandemic scenarios on attributes of transport modes for females and males are explored in this paper.</div></div><div><h3>Background</h3><div>The COVID-19 pandemic heavily affected the transport system of Cape Town, South Africa. Young adults, in particular, experienced high uncertainty, stress, and anxiety levels, due to the COVID-19 pandemic.</div></div><div><h3>Methods</h3><div>Data was collected from University of Cape Town students in online surveys. Individuals were assigned to one of three COVID-19 scenarios: ‘before’ (n=192), ‘during’ (n=210) and ‘after COVID-19’ (<em>n</em> = 229).</div></div><div><h3>Results</h3><div>Females and males consistently differed significantly in their perceived personal security, regardless of the COVID-19 scenarios.</div></div><div><h3>Conclusion and recommendations</h3><div>This paper shows that some transport modal attributes were affected differently per gender, ‘before’, ‘during’, and ‘after COVID-19’ scenarios. This provides insights into how the COVID-19 pandemic affected the transport attributes of young adults in Cape Town in the ‘missing middle’ and higher-income groups. Personal security is a main priority, especially for females, but is also relevant for males. This should be addressed in shared transport modes if young adults are to be drawn away from car ownership.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100016"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring road users' awareness and perceptions of advanced traveler information systems (ATIS) in Kumasi, Ghana","authors":"Williams Ackaah ,&nbsp;Alexander Yao Segbefia ,&nbsp;Isaac Dela Segbefia ,&nbsp;Zakari Abdul Karim Awini","doi":"10.1016/j.aftran.2025.100027","DOIUrl":"10.1016/j.aftran.2025.100027","url":null,"abstract":"<div><div>Traffic congestion, mobility challenges, and CO₂ emissions are global issues that require innovative solutions. This study explores the potential of Advanced Traveler Information Systems (ATIS) to alleviate congestion in Kumasi, Ghana, by leveraging Information and Communication Technologies (ICT) to encourage voluntary travel behavior change. It also aims to assess road users' attitudes towards ATIS in Ghana. A cross-sectional design was used, with closed-ended questionnaires sampling 1206 respondents through a multi-stage technique. A binary logistic regression model identified significant factors influencing ATIS use, including driver type, sex, age, education, income, and length of stay in the city (<em>P</em> &lt; 0.05). Despite 98 % of road users being aware of ATIS, actual usage remains low, with only 61 % utilizing the technology for trip planning. The study recommends building a robust ATIS infrastructure while ensuring data privacy. These findings emphasize the need to explore factors beyond awareness, such as usability, perceived benefits, and trust in the system.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100027"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dealing with public transport dissatisfaction. Mobility challenges and adaptations in Dakar, Senegal","authors":"Gaele Lesteven ,&nbsp;Momar Diongue ,&nbsp;Pascal Pochet ,&nbsp;Dramane Cissokho ,&nbsp;Pape Sakho","doi":"10.1016/j.aftran.2024.100014","DOIUrl":"10.1016/j.aftran.2024.100014","url":null,"abstract":"<div><div>West African cities are undergoing rapid demographic growth and spatial expansion. The satisfaction of essential needs depends on everyday mobility and the conditions under which it is performed. The majority of the population relies on walking and public transport (PT) services, whether formal or informal. Based on a study conducted in Dakar, Senegal, this paper investigates the difficulties urban dwellers encounter when using PT and how they adapt their travel behavior to overcome these difficulties and fulfill their mobility needs. A mixed method is employed, utilizing a Household Travel Survey carried out in 2015 and 38 semi-structured interviews with Dakar residents conducted in 2022–23. In a context where all PT services have major shortcomings, these deficiencies in the PT system reinforce the difficulties urban dwellers face in their daily travels. They must adjust their trips in real-time by changing mode, time or even destination, or plan their trips in advance in order to have enough money to cover travel expenses or to limit financial and temporal costs. Otherwise, they might be staying at home, which impacts their economic and social integration. Modal choice is thus not determined by the formality or informality of PT modes but by what the modes offer in terms of practical solutions access to the city. These findings emphasize the necessity of considering mobility needs of urban residents into transport public policies.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100014"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of paratransit system performance in mixed traffic using a two-stage bootstrap-DEA and ordinary Least Square approach","authors":"Simeon Stevenson Turay,&nbsp;Charles Anum Adams,&nbsp;Augustus-Ababio Donkor","doi":"10.1016/j.aftran.2024.100021","DOIUrl":"10.1016/j.aftran.2024.100021","url":null,"abstract":"<div><div>There has been a surge in the use of paratransit services including minibuses, two and three-wheelers, and other variants in Sub-Saharan African cities. Despite being characterized as unsafe; they continue to address a greater percentage of urban travel demand. Amidst the ongoing debate to integrate formalized public transport (FPT) and paratransit services, there is a need to understand the current performance of the existing modes operating in mixed traffic. The present study attempts to evaluate the performance measures of paratransit services in Freetown, Republic of Sierra Leone using a two-stage approach. In the first stage, efficiency and effectiveness scores for paratransit services along two corridors were estimated and corrected for bias by bootstrapping using data envelopment analysis (DEA). In the second stage, the bias-corrected DEA efficiency scores were regressed against a set of service and operational indicators. Data collection included videography, onboard vehicle, user perception, and operator surveys. A total of 1119 drivers and 1010 passengers were intercepted, and 300 onboard trips were made. Data were analyzed in STATA and R package (deaR) software programs. Findings revealed that as compared to low-capacity modes, relatively high-capacity modes are more efficient and effective in terms of revenue-generating vehicle kilometers travelled and daily ridership. Efficiency was found to be positively influenced by passenger density, speed density, and vehicle capacity. Stop density, capacity utilization ratio, in-vehicle travel time, trip delay and fuel consumption had a significant negative impact on paratransit services. These findings provide an opportunity to develop more precise planning strategies aimed at improving paratransit service performance especially for cities moving toward public transport system integration.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A framework for assessing the financial sustainability of minibus taxi route typologies by means of onboard trip data cluster analysis","authors":"Dirk du Preez","doi":"10.1016/j.aftran.2024.100022","DOIUrl":"10.1016/j.aftran.2024.100022","url":null,"abstract":"<div><div>In the Global South, including many African countries, informal paratransit plays a critical part in the economies of cities, transporting a major proportion of the workforce each day while providing employment, directly and indirectly, to thousands. In South Africa, paratransit refers to minibus taxis which mainly operate with fifteen-seater minibuses. In Cape Town minibus taxis dominate the public transport sector, servicing around two-thirds of the daily public transport commuter demand. It has previously been identified that minibus taxis in Cape Town have organically arranged themselves into a range of service typologies and in many cases operate within de facto ‘hybrid’ public-para transit service networks. This study builds on prior route classification evidence and analyses a more recent minibus onboard survey dataset collected by the City of Cape Town as part of the ongoing Integrated Public Transport Network planning data collection project. The focus of this study is on providing a framework for the assessment of the financial sustainability of the respective route typologies, and how this information can be leveraged to encourage improved cooperation between the industry and government to implement effective hybrid network arrangements, and to support the policy formulation and legislative changes required for a sustainable transition.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100022"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety evaluation of Dar Es Salaam Bus Rapid Transit facilities in accommodating non-motorists: A behavior study","authors":"Assery F. Msangi ,&nbsp;Angel C. Lucian ,&nbsp;Philbert Mwandepa ,&nbsp;Geophrey Mbatta ,&nbsp;Boniphace Kutela","doi":"10.1016/j.aftran.2025.100029","DOIUrl":"10.1016/j.aftran.2025.100029","url":null,"abstract":"<div><div>The Dar es Salaam Bus Rapid Transit (DART) became operational in 2016, aiming to mitigate traffic congestion and enhance public transportation in the rapidly growing city of Dar es Salaam, Tanzania. However, integrating BRT infrastructure into existing urban environments raises critical safety concerns, particularly for non-motorists, including pedestrians and cyclists. This study evaluates the safety of DART infrastructures in accommodating non-motorized users, identifying risks and mitigation strategies to enhance their safety and accessibility. Using interviews, Pedestrian Behavior Scale (PBS), and observation survey approaches, the study examines four specific hotspot locations along the BRT corridor, Msimbazi A, Msimbazi B, Kisutu, and Ubungo, to collect the field data. A total of 182 participants responded to PBS, with results showing behaviors needing more attention are violations, such as crossing in undesignated areas for convenience, and lapses due to low attention, such as following other people crossing without paying attention. Also, binary logistics analysis using 1444 observed non-motorists showed non-motorist compliance is influenced by age, type of crosswalk, fence, refuge islands, number of lanes, approaching traffic, and land use, while gender showed no significant influence. Integrating interview responses, observed behaviors, and logistic regression results provides a comprehensive understanding of pedestrian behaviors and their safety implications. Based on these insights, targeted intervention measures such as proper design and improved mass education on traffic safety can significantly enhance pedestrian safety, reduce risky behaviors, and promote positive behaviors across different locations.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100029"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143299189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring narratives on the factors explaining the use of tricycles for commercial transportation, and leading indicators for road safety in Ghana","authors":"Joana Eva Dodoo ,&nbsp;Lydia Aframea Dankyi ,&nbsp;Joyce Kwakyewaa Dankyi","doi":"10.1016/j.aftran.2024.100020","DOIUrl":"10.1016/j.aftran.2024.100020","url":null,"abstract":"<div><div>Dominant narratives on the increasing road accidents in Ghana highlight the activities of tricycles taxis (popularly referred to as pragia) as a major contributory factor. Yet, the conversation surrounding this issue in terms of solutions to curb the increasing rate of accidents has mainly remained in the media space. This study seeks to fill this gap in knowledge by exploring the underpinning factors and leading indicators for road safety in Ghana. Specifically, the study seeks to (a) explore the motivating factors for continual usage of tricycles in Ghana; (b) find out riders' awareness about their contribution to road safety threats in Ghana; and (c) potential leading indicators for addressing road safety. To achieve these objectives, the qualitative research approach, specifically the phenomenological design was adopted for this study. The target population included all commercial tricycle riders, customers, trade association, and regulators at Cape Coast (Motor Traffic and Transport Unit (MTTU), Cape Coast Metropolitan Assembly, Driver Vehicle and Licensing Authority (DVLA). The convenience sampling technique was deployed to select commercial tricycle riders and customers while the purposive sampling technique was used to select the regulators (MTTU, trade Association and DVLA). Semi structured interview guide was the main tool for data collection. Data analysis was performed using the thematic content analysis. The findings show that causal factors for continued use of tricycles irrespective of the associated safety risks were mainly due to financial and social benefits, availability of customers and convenience, and the fun element. Further, unsafe behaviour, nature of the tricycle, and lack of regulations on the use of tricycles were identified as the causes of the increasing accidents. The findings further revealed that leading indicators for promoting road safety include making the tricycles safe by design, laws and regulations, education and sustainability plans. This study contributes to the body of knowledge on road safety and rural transportation, and provides evidence-based findings and recommendations for researchers and policy makers. It is envisaged that the findings will serve as bases for further research as well as provide grounds for industry players and manufacturers, and state actors to collaborate in the promotion of road safety through the design of safe systems.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100020"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}