Sustainable Urban Transport Transitions in Lagos’ Informal Freight Sector

Thesis Abstract

Urban transport systems in Lagos are under pressure from rapid population growth, dense portside activity, and a large informal freight sector that operates beyond formal regulatory reach. This study investigates sustainable urban transport transitions within Lagos’ informal freight sector, addressing the problem of chronic congestion, emissions, and safety risks arising from unregulated loading, roadspace competition, and outdated vehicle fleets. The aim is to analyze drivers of transition towards more sustainable freight mobilities and to evaluate the potential for policy and operational interventions to catalyze practical improvements. Specific objectives are (1) to identify the key socio-technical factors shaping the adoption of cleaner, more efficient freight transport practices among informal operators; (2) to assess the environmental and mobility impacts of current informal freight flows and potential improvements; (3) to examine governance arrangements, institutional capacity, and stakeholder coalitions enabling or constraining transition; (4) to model feasible transition pathways using a multi-criteria decision framework; and (5) to offer evidence-based recommendations for policy, infrastructure, and incentive design tailored to Lagos’ context. A mixed-methods design will be employed. The population includes registered and unregistered informal freight operators, loading/dispatch points, transport unions, local government agencies, and freight customers in Lagos, with a purposive sample of 240 informal operators and 60 key informants. Data collection comprises structured surveys (n=240), in-depth interviews with operators (n=40) and policymakers (n=20), focus group discussions with freight customers (n=6 groups), and direct field observations at major freight hubs and corridors. Secondary data will be gathered from transport permits, vehicle licensing records, emission inventories, crash reports, and city mobility dashboards. Validity and reliability will be ensured through pilot testing of instruments, triangulation across multiple data sources, and inter-coder reliability checks for qualitative coding. The analysis will integrate quantitative and qualitative methods descriptive statistics, regression analysis to identify determinants of adoption of sustainable practices, and a difference-in-differences approach where relevant to compare pilot interventions; environmental impact will be assessed via life cycle considerations and emission factor analyses; thematic analysis will interpret interview and focus group data, guided by the Theory of Planned Behavior and the Multi-Level Perspective on socio-technical transitions. A dynamic systems model will be constructed to map transition pathways, complemented by a multi-criteria decision analysis to evaluate policy options under constraints of Lagos’ institutional environment. Expected findings include (i) identification of principal socio-technical drivers—ranging from affordability, access to finance, supply chain pressures, and perceived reliability of interventions; (ii) quantification of current emission intensities and congestion contributions from informal freight movements, with scenarios showing potential reductions achievable through targeted interventions such as fleet modernization grants, designated loading zones, and micro-logistics hubs; (iii) evidence on governance gaps, including enforcement capacity, stakeholder collaboration, and the effectiveness of existing incentives; (iv) a set of transition pathways with short-, medium-, and long-term milestones, including cost-benefit estimates and risk assessments; and (v) recommended design of policy instruments (financial incentives, regulatory reform, and urban design) aligned with Lagos’ urban morphology and economic structure. The study contributes to knowledge by articulating how socio-technical transitions operate within a developing megacity’s informal freight sector, enriching the literature on urban freight sustainability, and extending the application of the Multi-Level Perspective and Theory of Planned Behavior to inform practical governance and incentive design. The main conclusion anticipates that sustainable urban transport transitions in Lagos require co-constructed interventions that align informal operators’ viability with environmental and mobility objectives, supported by robust governance mechanisms and accessible financing. Policy recommendations include targeted micro-finance mechanisms for fleet upgrades, spatial planning to create dedicated freight zones, scalable pilot programs with rigorous monitoring and evaluation, and capacity-building among municipal agencies, unions, and fleet owners to institutionalize continuous improvement in emissions, safety, and service reliability.