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Abstract
The broad aim is to review the technical literature on productivity and performance indicators, and to establish a set of guidelines for improved approaches to the definition, measurement and implementation of indicators. The economic literature on productivity levels and growth rates will be reviewed and contrasted to the more established transport literature on performance indicators. Issues such as scale effects, technical change, traffic composition effects, and density effects will be defined and discussed. Guidelines on essential data and desirable practices for measurement and implementation should be addressed. The broad issue of supply side versus demand side indicators are discussed.