Grantley will present two talks related to the revision of AR&R. Australian Rainfall and Runoff Project 15: 2D Modelling in Urban Areas Currently, two-dimensional (2D) hydrodynamic (numerical) models have become the de-facto standard for baseline flood planning and management, especially in urban areas. Investigations addressing flood behaviour definition have typically followed a scope devised and refined over many years by government agencies to meet statutoryrequirements. However, the development, application and calibration of numerical models is open to considerable interpretation.
The presentation will provide an overview of recent research undertaken as part of Project 15 of the Australian Rainfall and Runoff Revision and funded by the Federal Department of Climate Change and Energy Efficiency and WRL. The research project investigated the application of 2D models in urban areas, with a particular focus on the representation of buildings and other floodplain flow obstacles in numerical models.
Australian Rainfall and Runoff Project 10: People and Vehicle Stability in Floods The safety of people in floodways or on flooded streets is of major concern in urban stormwater design and floodplain management. Human activity in floodways is inevitable with much development already in flood prone areas. The safety of people can be compromised when exposed to flows which exceed their ability to remain standing or traverse a waterway or cause vehicles in which they are travelling in to loose traction.
This presentation reviews previous work, collates and discusses subsequent experimental testing, empirical expressions and safety guidelines derived from these earlier studies. The entire data-set of relevant experimental results is reanalysed and tolerable flow conditions related to human and vehicle safety and safe working conditions are presented.
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