Efficient and reliable transportation is vital to economic growth, inclusive development, and environmental sustainability. A robust, sustainable mobility plan is especially critical in Latin America and the Caribbean (LAC), where transport and logistics systems lag behind those of advanced economies. These limitations hinder access to essential services, restrict social inclusion, and constrain both competitiveness and productivity (Scholl et al., 2021; Calatayud & Montes, 2021). To support sustainable transport development, the Inter-American Development Bank (IDB), in partnership with the International Initiative for Impact Evaluation (3ie), has developed an Evidence Gap Map (EGM). This EGM synthesizes global research on interventions across key transport domains: regional transportation networks, logistics systems, urban mobility infrastructure, and regulatory frameworks affecting mobility, public transit, and traffic governance.
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