Slow moving Two and three-wheeler vehicles (Tri-SMVs) make up as much as 80% of the traffic in Bangladesh, but the roads are largely designed for motorised vehicles with four or more wheels. This creates safety and comfort issues for Tri-SMV drivers and passengers, significantly affecting the mobility of vulnerable groups.In this episode we speak to Dr Nazmus Sakib of the Islamic University of Technology in Bangladesh about his research into this essential transport modality in both urban and...