The Environmental Sustainable Transport (EST) project contains a business-as-usual scenario and three EST scenarios: one 'high-technology' scenario containing only technological changes, one 'capacity-constraint' containing only mobility changes and one 'optimum-combination' scenario containing the 'optimum' combination of technological and mobility changes.
Six EST criteria have been established for the purpose of planning more sustainable transportation systems. Three criteria based on reductions (%) of the polluting components: CO2 by 80%, NOx by 90%, VOC by 90% between 1990 and 2030, are common to the participation countries. Three additional EST criteria specified by the participating countries are related to particulate matter emissions, noise and land use in 2030.
