ANNOUNCEMENT
A new version of the Thematic Research Summary (TRS) on Efficiency in Sustainable Mobility, updated for 2010, is now available from the Transport Research Knowledge Centre (TRKC). The paper deals with the minimisation of the resource costs of a given transport system and the maximisation of its performance. Costs considered include those borne by the transport users and those by the transport operators. The relief of congestion and reliability is a significant element in the consideration of efficiency. The updated TRS on Efficiency in Sustainable Transport is now available for download from the Thematic publications section of the TRKC website.