ABSTRACT
There are two chapters in this book on modelling drainage systems. Here, we look mainly at models covering hydrological and hydraulic aspects of modelling: rates of input from rain or wastewater, and the hydraulic response of the sewer system in terms of flow-rate and depth. Some sewer system models also include water quality: the presence and behaviour of pollutants entering and flowing through the system. These types of models are considered in Chapter 19.
