The Port Environmental Index (PEI) is a quantitative composite indicator of the overall environmental performance of a port.
The core idea behind PEI is to devise a comprehensive, standardized and transparent methodology to be used as an integrator of all the significant environmental aspects of ports and the related impacts into a single metric. The metric will be used by ports to:
- evaluate their own environmental performance in a comprehensive integrative manner,
- compare their environmental performance to other ports that have deployed the metric.
This use case is transversal and will be included in the other use cases described in PIXEL.