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¥.4Appendix 4«15*2 - p*34* Vehicle load (November, 1983)A representative mixer truck used in Hong Kongis the Nissan TO 6 x 2 mixer/transporter* Assumisagvalues of v m 50 km/h and z « 300 mm, the nominal impactforce exerted by a Nissan TO 6 x 2 on a parapet isshown on Figure 4«15»7 for various impact angles* Inno case, however, should the value of nominal impact forceused for design purposes be less than 5°The height at which the impact force acts ona parapet depends on the geometry of both vehicle andparapet. In no case t however, should the height assumedfor design purposes be less than 1000 mm*Partial load factors of 1*00 and 1*25 shouldbe applied to the nominal impact forces to obtain thedesign impact loads for the serviceability and ultimatelimit states respectively*