Many cities in Asia are looking to rail-based systems in order to solve urban transport problems and to allow further development. Patronage forecasts for rail system planning and design must be robust and yet sensitive to small differences in the attractiveness of the available route choice options.The default EMME/2 transit assignment procedure can produce travel cost matrices that are suitable for use in strategic modelling but limitations arise when the default procedure is used for detailed rail patronage forecasting. This paper describes a logit-based multi-routing public transport EMME/2 model structure that is appropnate for urban rail networks with low service intervals. The model allows for choice of sub-mode (rail or other), choice of station, and choice of rail route between station pairs. The necessary network coding and transit assignment additional options' features required are outlined.