Esther Bayiga Zziwa , Milton Mutto , David Guwatudde
{"title":"Pedestrian injury, land use, roadway design, and population density in Kampala City, Uganda","authors":"Esther Bayiga Zziwa , Milton Mutto , David Guwatudde","doi":"10.1016/j.aftran.2025.100036","DOIUrl":"10.1016/j.aftran.2025.100036","url":null,"abstract":"<div><h3>Introduction</h3><div>The way different built environment factors influence pedestrian deaths and injuries in urban areas requires further empirical analysis. This study examines the relationship between pedestrian deaths and injuries, land use, roadway design, and population density among the parishes of Kampala City, Uganda.</div></div><div><h3>Methods</h3><div>Data on the number of pedestrian injuries and deaths, land use, roadway design, population density, and socioeconomic status were collected from archival or documentary sources such as the police, relevant government ministries, and respective directorates within the Kampala Capital City Authority as well as the Uganda Bureau of Statistics. Factor analysis was used to reduce the 52 built environment variables to a few factors. Factors with low reliability were dropped off leaving 3 factors, “Socio-economic status (vulnerable populations)”, “Industrial land-use”, and “Traffic volumes”. Statistical analysis was conducted using negative binomial regression.</div></div><div><h3>Results</h3><div>Under the Socio-economic status (vulnerable populations) category, only percentage of population with walking disability was found positively associated with fatal crashes at the 95 % confidential interval (<em>P</em>-value = 0.028). Under the Socio-economic status (vulnerable populations) category, proportion of arterial roads (P-value = 0.033) and percentage of population with walking disability (P-value = 0.05) were found positively associated with serious pedestrian crashes. Additionally, under the industrial land-use category, the number of warehouses/depot businesses were positively associated (<em>P</em>-value = 0.003). Lastly, the proportion of local roads was found inversely associated (P-value = 0.031) with serious pedestrian crashes under the traffic volumes' category.</div></div><div><h3>Discussion</h3><div>These results show some similarities and dissimilarities with findings from previous studies. The findings confirm that industrial land use (warehouse depots) and arterial roads are associated with increased pedestrian crashes while local roads have less pedestrian crashes; similar to previous studies regardless of settings. This study also highlights that people with walking disabilities are at an increased risk of pedestrian crashes.</div></div><div><h3>Conclusion</h3><div>This study not only extends existing work on the relationship between pedestrian crash risk and the built environment but also contributes to the micro-level influence of land use, roadway design and population density, and socioeconomic and demographic variables at the ward unit in Kampala City, Uganda thus facilitating the development of urban interventions. The findings of this study have implications for land use and transportation planning at the parish/ward level in African cities with similar settings.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100036"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716138","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 narratives on the factors explaining the use of tricycles for commercial transportation, and leading indicators for road safety in Ghana","authors":"Joana Eva Dodoo , Lydia Aframea Dankyi , 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}
Samuel A. Ajayi , Charles A. Adams , Gift Dumedah , Obiora A. Nnene , Fidelma Ibili
{"title":"On-road vehicular traffic emissions inventory and air quality on major roadways in Lagos City","authors":"Samuel A. Ajayi , Charles A. Adams , Gift Dumedah , Obiora A. Nnene , Fidelma Ibili","doi":"10.1016/j.aftran.2025.100034","DOIUrl":"10.1016/j.aftran.2025.100034","url":null,"abstract":"<div><div>Traffic-related air pollution (TRAP) is a serious public health risk in today's cities, causing premature death and a wide range of global diseases such as respiratory, cardiovascular, and neurological disorders. This study evaluated a local emission inventory and monitored ambient air quality in the Lagos metropolis through roadside observations of five traffic air pollutants using portable emission devices on selected roadways. Traffic mobility metrics, such as flow, speed, and vehicle fleet composition, were recorded over eleven (11) hours daily. Geospatial analysis identified pollution hotspots across various emission monitoring points on each corridor. Findings revealed that arterial composition and traffic flow significantly influence emission levels. The highest traffic volumes were recorded during the morning (7–9 a.m.) and evening (4–8 p.m.) peak periods, while the lowest pollutant concentrations occurred during the afternoon (12–2 p.m.). Pollutant levels were notably higher at bottlenecks near intersections or in traffic jams compared to points farther from the road corridors. SO₂ and NO₂ concentrations indicated moderate pollution across all routes. However, CO, PM₂.₅, and PM₁₀ concentrations on commercial and industrial routes posed severe health risks, rendering the air quality unsafe to health. Enhancing air quality monitoring across Sub-Saharan Africa (SSA) is essential for developing robust national responses to combat air pollution and safeguard public health.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"3 ","pages":"Article 100034"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529202","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}
Charles Atombo , Gideon Pappoe , Maxwell Selase Akple , David Adzah
{"title":"Evaluating the adoption of electric vehicles: Insights from Ghana","authors":"Charles Atombo , Gideon Pappoe , Maxwell Selase Akple , David Adzah","doi":"10.1016/j.aftran.2024.100007","DOIUrl":"10.1016/j.aftran.2024.100007","url":null,"abstract":"<div><p>Electric vehicles (EVs) are eco-friendly automobile innovation and is evolving as a promising solution to global challenges such as energy scarcity and environmental pollution. However, adoption of EVs in Ghana remains limited. Hence, the study examined the underlying factors affecting EVs adoption in Ghana using web-based survey involving 902 participants across Ghana. The study employed Innovation Diffusion Theory and Binary Logistic Regression to address the objective. The result shows that gender, driving license, driving experience, vehicle ownership, source of information on EVs, and knowledge of EVs were significant demographic factors related to the adoption of EVs. Apparently, being male, middle age, driving experience ranging from 6 to 20 years, higher-income earners, private car owners, familiarity with EVs, and those with knowledge of EVs from sources like internet and school were more inclined to adopt EVs. Moreover, factors such as economic benefits, availability of charging infrastructure, environmental concerns, and self-image are more likely to increase EVs adoption. Categorically, the perception that EVs: save fuel, provide economic advantages, reduced air pollution, produced low carbon emissions, protect the environment, are easy to maintain and availability of repair resources are more likely to motivate the adoption of EVs. Furthermore, charging stations availability, personal image enhancement, and peer influence are closely related to the adoption of EVs. However, not opting to adopt EVs is closely related to concerns about tax incentives associated with owning an EV, the distance traveled before recharging, and the belief that EVs have low noise levels. Policy implications were also discussed.</p></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100007"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950196224000061/pdfft?md5=97b3bfc0c23232c1b10c4bc78742f4fb&pid=1-s2.0-S2950196224000061-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639376","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}
A.K. Milku , F. Attiogbe , C. Atombo , N.S.A. Derkyi , E.L. Asuako
{"title":"Evaluating the categorical effect of vehicle characteristics on exhaust emissions","authors":"A.K. Milku , F. Attiogbe , C. Atombo , N.S.A. Derkyi , E.L. Asuako","doi":"10.1016/j.aftran.2024.100008","DOIUrl":"10.1016/j.aftran.2024.100008","url":null,"abstract":"<div><p>The study assessed the categorical effect of <em>vehicle age, frequency of maintenance and emission technology</em> on vehicle emissions. Concentrations of carbon dioxide, hydrocarbons, carbon monoxide, and nitrogen oxide samples were taken from one thousand and two (1002) light-duty gasoline vehicles at three vehicle inspection centers in the city of Accra. Vehicle age was positively related to CO and HC emissions. The use of emission technology was negatively related to CO and HC emissions, but positively related to NO<sub>x</sub>. Vehicle maintenance had a significant negative relationship with HC but no significant relationship with CO, CO<sub>2</sub>, or NO<sub>x</sub>. Categorically, moderate and over-aged vehicles were positively related to CO and HC with over-aged vehicles being more so. Furthermore, 2-way and 3-way converter were negatively related to exhaust emissions, but 2-way converter was positively related to NO<sub>x</sub>. However, the coefficient value of the significant relationship between 3-way converter and CO (β = −0.374) as well as HC (β = −0.460) emissions was higher than 2-way converter. Regular maintenance of vehicles showed significant negative relations with HC, with insignificant relation with CO, CO<sub>2</sub> and NO<sub>x</sub> emissions. The findings suggest that vehicle age, regular maintenance and use of emission technology are critical factors to consider when reducing vehicle emissions.</p></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100008"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950196224000073/pdfft?md5=c8442b346f0b0e56a82a81c30fd5be48&pid=1-s2.0-S2950196224000073-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639375","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}
Cailis Bullard , Emmanuel Kofi Adanu , Jun Liu , William Agyemang , Steven Jones
{"title":"Segmenting and investigating pedestrian-vehicle crashes in Ghana: A latent class clustering approach","authors":"Cailis Bullard , Emmanuel Kofi Adanu , Jun Liu , William Agyemang , Steven Jones","doi":"10.1016/j.aftran.2024.100010","DOIUrl":"10.1016/j.aftran.2024.100010","url":null,"abstract":"<div><p>In low- and middle-income countries (LMIC) pedestrians and cyclists account for approximately 26 % of the road traffic deaths, which is a considerable amount as it is well known that the majority (90 %) of the world's road traffic deaths occur in these countries. In Africa however, pedestrian and cyclist deaths account for 44 % of their yearly road related deaths. Ghana is no exception to this trend; in fact, it has been estimated that pedestrian crashes alone account for 36.7 % of road related deaths in the country. Therefore, the objective of this study is to use historical crash records from 2018 to 2020 to explore pedestrian-vehicle crashes in Ghana, to identify the groups of pedestrians represented in pedestrian-vehicle crashes by use of a latent class analysis (LCA) model, then conduct injury severity analyses using a mixed logit approach on each pedestrian group found in the LCA modeling. Results indicate that by segmenting the pedestrian crash data into homogenous groups, some variables were found to only be significantly associated with injury severity within some classes. Other variables were found to be significant across multiple classes yet experience different trends within each. For example, no traffic control was found to be significant within three subgroups but affect severity levels differently across classes. Further the darker hours of the day were more likely to be associated with fatal and major injury outcomes across multiple classes. This study provides new direction for studying different types of pedestrian crashes, particularly in LMICs and provides targeted interventions.</p></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100010"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950196224000097/pdfft?md5=97a15531dea439b5a46eb9de020e9c44&pid=1-s2.0-S2950196224000097-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272412","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}
Evelyn Amekudzi , Emmanuel Amponsah , Michael Poku-Boansi , Obaa Yaa Aninwaa Anin-Yeboah , Michael Osei Asibey
{"title":"Decarbonizing Ghanaian cities through the lens of sustainable transportation planning: Policy and institutional response","authors":"Evelyn Amekudzi , Emmanuel Amponsah , Michael Poku-Boansi , Obaa Yaa Aninwaa Anin-Yeboah , Michael Osei Asibey","doi":"10.1016/j.aftran.2024.100013","DOIUrl":"10.1016/j.aftran.2024.100013","url":null,"abstract":"<div><div>The global emphasis on decarbonization has intensified in response to urban struggles with climate change. The growing demand for mobility in urban areas intensifies climate change crisis, requiring a reevaluation and transformation of current transportation systems. This study investigates the role of policy frameworks and institutional responses in the connection between sustainable transportation planning and decarbonization in Ghanaian cities. The study relied on both primary and secondary data sources. Primary data was obtained from eight respondents from the Development Planning Department, and the Transport Department of the Kumasi Metropolitan Assembly, Department of Urban Roads and the Environmental Protection Agency through face-to-face interviews. The findings showed that the existing policy landscape of Ghana does not sufficiently provide for transport decarbonization. Consequently, this neglect of the policies and other socio-cultural issues holistically constrains efforts by the institutional structures to decarbonize the city's transportation system. A holistic approach combining policy innovation, institutional capacity building, and community engagement is crucial for effectively decarbonizing Ghanaian cities and developing a more sustainable and resilient urban environment.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100013"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705571","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}
Kwasi Kwafo Adarkwa, Michael Ayertey Nanor, Michael Osei Asibey, Gideon Adu Sarfo Atta
{"title":"The contribution of cargo tricycles to the urban economy of Ghanaian cities; A case study of greater Kumasi metropolitan area","authors":"Kwasi Kwafo Adarkwa, Michael Ayertey Nanor, Michael Osei Asibey, Gideon Adu Sarfo Atta","doi":"10.1016/j.aftran.2024.100005","DOIUrl":"https://doi.org/10.1016/j.aftran.2024.100005","url":null,"abstract":"<div><p>The introduction of cargo tricycles into the modal mix has significantly impacted the movement of freight in Ghana's large and medium-sized towns. However, this has not been adequately studied. In this paper, we explore the operations of freight hauliers using cargo tricycles within the Greater Kumasi Metropolitan Area (GKMA), and their contribution to the city's economy. Surveys of 173 cargo tricycle operators, 105 patrons or end-users, relevant institutions (the Driver and Vehicle Licensing Authority [DVLA], the Urban Transport Department of the Kumasi Metropolitan Assembly and the Roads Department of the Asokore-Mampong Municipal Assembly), and operator unions were undertaken. These category of respondents were selected and interviewed at five identified tricycle head stations, using semi-structured questionnaires and interview guides. The surveys revealed that cargo tricycles grew at a rate of nearly 13% per annum over the 2015–2021 period. Nearly 40% of these tricycles had a total round-trip length of between 10 and 30 km with seven round trips per day while transporting an average of between 480 and 600 kg of different types of freight including foodstuffs, construction materials, machinery, and refuse. The study estimated that they contribute about GH₵ 205 million annually, to the local economy while employing nearly 3000 operators and assistants. The average value of freight hauled was also estimated at GH₵ 693 million annually. The tricycles offered cheaper means of transport, were convenient, and manoeuvred easily to difficult destinations. However, they posed major safety challenges in the study area, which require prudent interventions.</p></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100005"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950196224000048/pdfft?md5=4292292281bd30d0769f4ba9c71c07ad&pid=1-s2.0-S2950196224000048-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141481479","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":"Macroeconomic impacts of African transport transitions: on the case of electric two-wheelers in Kenya","authors":"Emmanuel Uzim , James Dixon","doi":"10.1016/j.aftran.2024.100009","DOIUrl":"10.1016/j.aftran.2024.100009","url":null,"abstract":"<div><p>The impact of the e-mobility transition on a national economy will depend strongly on that nation's set of fiscal policies regarding vehicle, fuel and electricity taxation. Here, we present a framework and online open-access tool to evaluate the macroeconomic impacts of vehicle electrification in any national context. By applying the framework to the booming electric two-wheeler sector in Kenya, we provide a set of context-specific recommendations regarding the impacts of transport electrification on Kenya's fiscal position, given a set of scenarios relating to vehicle market size and fiscal policy. It was found that in the Kenyan case, the e-mobility transition is unlikely to result in a significant black hole in government finances: for a given two-wheeler market size, it is predicted that the loss in revenue resulting from a business-as-usual shift to electric two-wheelers would result in the loss of only 3% of government revenue from the sector by 2040, totalling approx. KSh1.4bn (under 0.1% of Kenyan GDP in 2023). However, carbon taxation is a significant source of government revenue when applied to polluting technologies such as petrol-powered two-wheelers, potentially doubling the revenue returned from the Kenyan two-wheeler sector by the mid-2030s, relative to what it would be without carbon taxation, if IMF recommendations regarding carbon tax are followed. However, revenue from carbon taxation will dry up as the transition to e-mobility hastens. Of course, any intervention regarding taxation, including carbon tax, must be subject to careful policy analysis. Taxation policy should direct consumers towards desired behaviours (in this case, the uptake of electric over internal combustion-powered two-wheelers) and allow the redistribution of wealth to those most affected by transport poverty.</p></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100009"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950196224000085/pdfft?md5=c3a9ca797ba0966d7cbb11052c05546c&pid=1-s2.0-S2950196224000085-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141984711","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}
Kwame Kwakwa Osei , Zakari Abdul Karim Awini , Williams Ackaah
{"title":"Modelling lane flow distribution on multi-lane highways: Insights from built-up and non-built-up areas","authors":"Kwame Kwakwa Osei , Zakari Abdul Karim Awini , Williams Ackaah","doi":"10.1016/j.aftran.2024.100011","DOIUrl":"10.1016/j.aftran.2024.100011","url":null,"abstract":"<div><div>This study investigated lane flow distribution on selected sections on the Kumasi – Accra multilane highway, with a specific focus on a section located in a built-up area, characterized by side frictions and driveways, and another in a non-built up area, characterized by flat terrain with no access or side friction. The study sought to (1) explore the lane flow distribution patterns under varying traffic conditions and roadway environmental types (urban and non-urban), and (2) investigate the combined effect of roadway and traffic conditions on lane flow distribution. Traffic volume data was extracted from video recordings made at the two study sites for two days. At the same time, vehicular speeds were measured with the use of a radar speed gun. The data were explored descriptively, after which multiple linear regression was employed to model the lane flow distribution in the median lane. The results indicated pronounced disparities in lane utilization between the two sites with different vehicle categories exhibiting distinct lane preferences. The model suggested that roadway environment type, proportion of motorcycles in the traffic stream, and total link flow significantly determine the proportion of traffic flow that travel in the median lane whereas the proportion of trotros and the average link speed have marginal influence. The findings emphasize the importance of considering local contextual factors and driver behaviors in modelling lane flow distribution, particularly in developing countries with heterogeneous roadway and traffic conditions.</div></div>","PeriodicalId":100058,"journal":{"name":"African Transport Studies","volume":"2 ","pages":"Article 100011"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529695","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}