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Diversion factors have been derived from a substantial, but diverse, database.

• A revised set of recommended diversion factors are presented for interventions on bus, car, rail, light rail/metro, cycle and walk. Further, best-estimate values for a number of scenarios that are considered to be useful for transport appraisal purposes are provided.

Very little new evidence on bus fare elasticities has been identified in the review.

• We do not recommend any changes to the overall range of values for bus fare elasticities. However, based on the additional evidence from Wardman (2014), recommended values for area type and trip-purpose segmentations are presented.

We have uncovered very little new evidence on bus journey time elasticities.

• We find that there is very little evidence on bus in-vehicle time (IVT) or generalised journey time (GJT) elasticities. We are not aware of any studies that determine GJT elasticities directly and the recommended values are derived from IVT elasticities.