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A Dash Roll / Relocation as a technique to free a lower limb entrapment so the casualty can be removed at any time during the main plan / main space creation phase of the rescue. Carried out with the roof in situ and cutting inline with the front header rail to remove the need to manage the windshield glass.
It is worth noting, as we mostly train on vehicles with little to no damage this gives us a false outlook of the process. In reality with a high frontal impact where a dash relocation is needed, we would need to support the dash prior to any other cuts, and in most cases are only relocating the vehicle someway towards its original shape. so the process could be slightly different to that in some of the dash roll videos shown.
1, Support the dash/load
2, Relief cut if needed - in cases of severe dash intrusion a relief cut is not needed, or indeed possible.
2.1, Apply ram support if required - additional block support if needed
3, Relocate the dash to free the entrapment - relocate the dash someway towards its original position or until the entrapment is freed.