By combining standardized calculation methods for total noise levels and monetary estimates from well established evaluation methods, this study outlines a model to estimate the short run marginal cost (SRMC) for road and railway noise that is able to differentiate not only modes of transport, but also vehicles and technologies. Several sensitivity tests run for the SRMC show that estimates are: (i) insensitive to the traffic volume, (ii) sensitive to the number of exposed individuals, and (iii) sensitive to the monetary values used. Results also show that the use of quiet technology can have a significant effect on the SRMC.