Below we provide examples of disruptions and transit delays that have occurred in major food trade chokepoints since 2002. These examples were used to inform Table 2 in Section 3.4, which indicates the relative risk of disruption or passage restriction at each of the 14 chokepoints featured in this report.
The list of disruptions is far from comprehensive; instead, it is intended to be an illustrative overview of the heterogeneity and frequency of small- or medium-scale disruptions at key trade chokepoints over a period of 15 years. Our analysis classifies chokepoint hazards into three categories – weather and climate risk; security and conflict risk; and political and institutional risk – and further divides these into subcategories, such as ‘haze and fog’, ‘trade and transit controls’ etc. (see Table 10). The illustrative list of disruptions (Table 11) assigns each historical example of disruption to one of these 11 subcategories.
We identified and compiled examples of disruption through a desk-based review of news reports and open-source literature from industry, academia and civil society; in the absence of an existing framework for the reporting of chokepoint disruptions, there was limited potential for a more methodical approach. We believe that a robust, systematic approach to documenting chokepoint disruptions and quantifying their impacts on food trade is urgently needed to support the effective assessment and management of chokepoint risk.
A maximum of three incidents are noted for each hazard category. Key search terms were in English; foreign-language material was not included. Examples of weather- and climate-induced disruptions and of politically and institutionally induced disruptions are limited to those with a reported impact on freight operations. Examples of conflict- and security-related incidents, on the other hand, include attempted attacks and events that had no reported impact on traffic. The authors understand these incidents to be qualitatively distinct from those relating to weather and political effects. Terrorist activity, breakouts of armed conflict and state-led attacks on vessels are considerably less likely to affect chokepoint transit in the short term, but have broader and longer-lasting implications for food trade and prices (e.g. as a deterrent to commercial or humanitarian shipments, or as a source of upward pressure on transport costs and food prices if war insurance premiums are raised).
Some further general caveats and specific points merit explanation:
- Scant and variable data on chokepoint disruptions limit the scope for a comprehensive review of events, both small- and large-scale. The majority of available information is anecdotal in nature, often reported by local news services or industry organizations and generally lacking much specific detail. The overview here should therefore be understood as indicative of the relative frequency of disturbances at each of the 14 chokepoints, and illustrative only of events significant enough to raise concern among mainstream media, agricultural traders or the transport industry.
- The severity of disruptions noted varies considerably, both in terms of the scale of damage/duration of transit disruption and in terms of the longer-lasting impact. Without an in-depth assessment of the first- and second-order impacts of these incidents, it is not possible to gather a full picture of the risk level at each chokepoint. By differentiating between the nature of disruptive hazards, we can nevertheless get an idea of the differing risk profiles across the 14 chokepoints.
- If chokepoint risk is to be fully incorporated into risk assessment and management frameworks within the field of food security and beyond, a more systematic and robust approach is needed to compile available information on past disruptions. At national level, a coordinated process involving port and throughput data analysis, industry engagement and information-gathering among infrastructure operators would likely yield considerably more detailed and complete accounts of incidents affecting trade.