The consortium has proposed a study that aims to:

Identify the findings common to previous studies and define common conclusions;

Identify areas of disagreement between existing studies and investigate whether this is the result of:

- Genuine scientific disagreement;
- Application to different geographic regions;
- Different scenarios for regulatory, road or vehicle design options;
- Different analytical tools;
- Different assumptions, etc.

Produce a common view of these areas of disagreement, accepted by all analysts involved in the original research wherever possible;

Identify areas of genuine technical uncertainty and, wherever possible, undertake more detailed investigation to reduce that uncertainty;

Rigorously catalogue and quantify the likely effects of a range of potential technical and policy measures that could affect the impact that any changes to weights and dimensions regulation could have;

Propose and evaluate more detailed policy options.