New, stricter safety specifications forced Bombardier to increase the crash safety of the TRAXX 1 locomotive body. As a result, the TRAXX 2 locomotives that have been manufactured since 2005 boast a ver ticalfront section at the bottom as well as altered shunting treads on the fronts. Many components inside the vehicle were also simplified and standardised in order to be able to respond to customer desires in amore flexible manner whilst also reducing in-house production work. In order to also be able to distinguish them in terms of their fleet number, the locomotives have been issued with the subclass numbers185.2 and 146.2 to 146.5. Bombardier has globally produced over 1500 units of this highly successful TRAXX family.