Road Blocker DSP® K12 is designed to guarantee the full level of security. A successful crash test per DOS SD-STD-02.01 Rev. A 03/2003 and PAS 68 was carried out with a 7.5 ton truck travelling at 80 km/h. The very first impact test was conducted by the TÜV (German Technical Inspectorate) 30 years ago. Our Road Blocker DSP® K12 can be installed as a single unit.