There is now the option to filter by Westminster Parliamentary Constituencies for England and Wales. It is a separate hierarchy under the Crash Location Small Area dimension. More details on accessing Westminster Constituencies in MAST can be found on the [Wiki].

The second new dimension is the ‘RSA Highway Authority Network Classification System’ dimension (HANCS), which takes the classification system developed for last year’s Signpost Report for inclusion in MAST. A definition of HANCS can be found [here] and how to use the MAST dimension [here]. The value of HANCS for comparative analysis will also feature at Conference.