A Transportation System Performance and Safety Analysis of Juba, South Sudan

A Transportation System Performance and Safety Analysis of Juba, South Sudan | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A Transportation System Performance and Safety Analysis of Juba, South Sudan William F. Lyons, Moses Tefe This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8833063/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 12 You are reading this latest preprint version Abstract This study presents a comprehensive analysis of the transportation system in Juba, South Sudan, examining traffic flows, infrastructure capacity, and road safety at critical urban intersections. This research reveals significant challenges in urban mobility and safety through systematic data collection and analysis of traffic patterns at major intersections including Gudele Road at Rock City Road, University of Juba Roundabout, Custom Roundabout, and Seventh Day Roundabout. The study finds severe capacity constraints with volume-to-capacity ratios exceeding 1.6 during peak hours at major intersections, while safety analysis indicates concerning crash patterns with motorbikes involved in 54.6% of all traffic movements yet representing the highest risk category. Annual crash data shows 113 recorded incidents with a 77.8% injury rate, concentrated among drivers aged 26–35 years. The research contextualizes these findings within the broader East African transport landscape and South Sudan's post-conflict infrastructure development trajectory. Key recommendations include immediate traffic signal implementation, dedicated motorcycle infrastructure, enhanced enforcement mechanisms, and comprehensive road safety education programs targeting high-risk demographics. Transportation systems traffic safety infrastructure capacity South Sudan urban mobility post-conflict development Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Reviews received at journal 29 Apr, 2026 Reviewers agreed at journal 19 Apr, 2026 Reviews received at journal 19 Apr, 2026 Reviewers agreed at journal 16 Apr, 2026 Reviewers agreed at journal 14 Apr, 2026 Reviews received at journal 11 Apr, 2026 Reviewers agreed at journal 10 Apr, 2026 Reviewers invited by journal 09 Apr, 2026 Editor invited by journal 30 Mar, 2026 Editor assigned by journal 25 Mar, 2026 Submission checks completed at journal 21 Mar, 2026 First submitted to journal 21 Mar, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8833063","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":624322278,"identity":"d386a55d-a746-4aa8-ba59-503c0c9a7d12","order_by":0,"name":"William F. 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