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infrastructure, primarily shifting from trucks to rail to
lower CO₂ emissions. Electrified rail in Africa can
notably cut emissions compared to truck transport.
Logistics providers are optimizing routes and
investing in cleaner vehicles, while ports and
warehouses adopt renewable energy and cold-ironing.
Integrating these practices supports climate and
efficiency goals alongside economic growth. Modern
corridors leverage information technology for better
coordination and transparency. East African ports are
implementing digital platforms to enhance efficiency
and reduce costs. Successful corridor performance
requires collaboration among public agencies, private
businesses, and communities, with public-private
partnerships essential for infrastructure funding and
regional cooperation supported by organizations like
UNCTAD. Engaging local stakeholders is crucial for
greening corridors and improving cross-border
coordination for regional benefits.
Well-functioning transport corridors can lower
costs and improve access, aiding farmers and driving
industrial growth. Sustainable transport frameworks
emphasize affordability and accessibility, particularly
for rural areas. Improved corridors have boosted
exports of agricultural products and minerals while
reducing food prices. However, poorly planned
projects can harm local communities and ecosystems,
and insufficient community engagement can worsen
inequalities. There's often a disconnect between
investors and governments, leading to negative
consequences like deforestation. Studies highlight
efficiency challenges, such as delays at border
crossings. A simulation in East Africa showed that
optimal investments can significantly enhance regional
outcomes. Tanzania's multi-modal model also
indicates that extreme flooding could result in daily
losses over USD 2 million without adaptive measures.
Therefore, efficiency metrics should include resilience,
and continuous monitoring is crucial for transport
system improvements.
Research Gaps and Future Directions. Although
existing research highlights the role of transport
infrastructure in regional development, it rarely
addresses how integrated corridors can harmonise
economic and environmental goals. This gap limits
policymakers and stakeholders seeking actionable
strategies for scalable, low-carbon transitions.
The key areas needing more research include:
− Integrated planning: Horn of Africa studies stress
that sustainability and environmental criteria
should be “integrated at early stages” of corridor
design [17], but practical frameworks for doing so
are still underdeveloped.
− Capacity and financing: Resource constraints limit
the implementation of sustainable strategies.
Inadequate institutional capacity and funding for
maintenance or new technology hinder progress.
− Impact assessment: Many corridor projects lack
comprehensive social and ecological assessments
[18]. Research is needed on best practices for
inclusive stakeholder engagement and impact
mitigation.
− Digital infrastructure: While digitalization is
promising, uneven ICT adoption leaves gaps.
Studies suggest more analysis of how to bridge
policy and technical barriers to port and customs
digital platforms.
− Performance metrics: There is a need for
standardized metrics that capture economic, social
and environmental performance together. Existing
work (e.g. network modelling) provides a start, but
further data-driven evaluations are required.
In summary, existing research clearly shows that
effective East and Horn of Africa corridors must knit
together infrastructure, green technology, digital
systems, and inclusive institutions. Studies
consistently show that such integration can deliver
economic and social benefits without sacrificing
environmental goals. Achieving this vision will require
sustained collaboration among countries, informed by
ongoing research into corridor best practices and
outcomes.
3 RESEARCH OBJECTIVE AND SCOPE
This study examines the development of sustainable
transportation corridors in the Horn of Africa, with an
emphasis on integrating seaports, railways, and
logistics practices. The research evaluates recent
project outcomes, identifies persistent challenges, and
assesses strategies for incorporating green logistics into
regional planning. The primary geographic focus
covers Djibouti, Eritrea, Ethiopia, and Somalia, with
reference to the Poland corridor. The analysis spans the
period from 2015 to 2025, concentrating on significant
infrastructure developments within this timeframe.
Key topics include seaports and dry ports, railway
systems such as the Ethiopia–Djibouti line, and freight
logistics involving road networks and cargo handling
operations. Air transport and inland shipping are not
considered. The research assumes a stable security and
political context as of 2025. The focus remains on
freight transport, with particular attention to policy
coordination, infrastructure investment, and the
adoption of green technologies. The objective is to
support practices that lower carbon emissions,
strengthen resilience to climate change, and advance
the development of a collaborative and sustainable
transport system in the Horn of Africa, following the
example of Polish corridor.
4 METHODOLOGY
This study employed a combination of literature
review, case analysis, and quantitative assessment to
investigate sustainable transportation corridors in the
Horn of Africa. Recent academic publications,
government and development agency reports, and
media sources were examined to gather data on
transport projects, with attention to port throughput,
railway capacity, transport costs, and energy use. Key
sources included documents from the African
Development Bank, World Bank, and authorities in
Ethiopia, Djibouti, and Somalia, as well as articles
addressing green logistics and corridor planning [9].
Case studies focused on the Ethiopia–Djibouti corridor
(including the Addis Ababa–Djibouti Railway and
Doraleh Port), and the Polish corridor. Each case was
documented in terms of current and planned
infrastructure, governance arrangements, and
environmental measures. Data collection centered on
freight volumes, travel times, fuel consumption, and