Naturalistic driving observations within ERSO, deliverable 6.1

This deliverable reports the outcome of the first task which was to generate an inventory of variables and measurement tools necessary to monitor road safety through Naturalistic Driving Observations. This was achieved by performing the following activities: 1. Generating an inventory of relevant variables to monitor road safety within ERSO. 2. Generating an inventory of relevant variables to monitor through naturalistic driving observation. 3. Combining 1 and 2 to define the variables to be measured within ERSO by naturalistic driving observation.