The article discusses how floodplains in Australia are categorized based on their ability to handle floodwaters. Floodways and flow conveyance areas are crucial for managing flood behavior. Traditionally, floodplains are divided into different zones, but the extent of floodways is often subjective. Recent advancements in flood simulation tools and topographic data have improved our understanding of flood flow patterns. This helps in better identifying floodways and managing flood risk more effectively.