This report recommends a financial model that estimates the likely greenhouse gas emissions from construction and maintenance of public transport projects.

The emissions offsets calculator calculates the required area of native vegetation that will be required to offset the emissions from each transport project. A business model then analyses the financial viability of each emissions offset project based on inputs such as the price of carbon, expected inflation, interest and discount rates.

The paper discusses the methodologies that were used to construct the model and includes an infrastructure transport scenario to demonstrate the model's function.

The report gives recommendations for improving the offset modelling system, gives a summary of different options for carbon forest sinks and describes the many additional ecosystem services and benefits apart from carbon sequestration that can result from the introduction of native vegetation.