Experimenteel multifactoronderzoek naar factoren die de beschikbare wrijvingskrachten tussen banden en natte wegdekken beïnvloeden. Derde fase: Vrachtautobanden.

In the third phase of the multi-factor research use is made of tyres for lorries, Experiences gained with the measurement of coefficients of friction with such tyres are described. As a criterion for judgment the maximum braking force coefficient and the braking force coefficient of the locked wheel were used. It is shown that tyres for lorries have significant lower brake force coefficients than tyres for cars, sometimes even 50%.