This metric is based on the Global Reporting Initiative (GRI) G4 Sector Supplement - Event Organizers.  It covers one of the reporting requirements of Indicator G4-EO3 - 'Significant environmental and socio-economic impacts of transporting attendees to and from the event, and initiatives taken to address the impacts'.

Attendee transport is often an event’s largest environmental impact. Environmental and socio-economic issues associated with transportation to the event include disruption to neighborhood amenity, localized air and noise pollution, health and safety, security, health impacts, along with greenhouse gas emissions from fuel combustion in the various modes of transport. Assessing the significant environmental and socio-economic impacts of transportation is part of a comprehensive approach to event planning.

Refer to G4-EN30 for reporting on significant environmental and socio-economic impacts of transporting products and other goods and materials used for the organization’s operations, and transporting members of the workforce.