The collection of case studies report on electric road systems (ERS) provides an overview of the activities of PIARC Task Force 2.2 to date. This includes an overview of the tasks and activities of the Task Force as well as the progress made to date in terms of collection and review of literature, collection of case studies, survey questionnaire development and workshops. The report ends with a brief conclusion regarding the progress to date and information regarding the immediate next steps that the Task Force will undertake.