Existing and planned transport infrastructure in HCMC will be at risk from the effects of climate change.

The HCMC study has shown that, in 2050, with climate change, all categories of roads will be affected by extreme flooding, including axis and ring roads, highways and national and provincial roads to a significant amount. The planned flood control project will protect axis roads and ring roads to some extent but will not be effective in protecting many highways and national and provincial roads. Whilst flooding of the roads has the potential to damage roads, especially embankments and culverts that prevent the cross flows of water (especially if the culverts are not sized correctly), flooding may merely be disruptive to traffic for the duration of the flood and during clean up. Road intersections and nodal points will also be affected which has the potential to exacerbate disruptions to traffic flow and affect existing high congestion.