Prediction Model for Connected Voids Ratio of the Porous Asphalt Mixture

Table 10

Predictive valuation test.

Gradation number	Actual value (%)	Prediction value (%)	Deviation rate (%)
1	17.20	18.13	−5.39
2	17.20	16.94	1.51
3	12.40	13.44	−8.37
4	17.60	19.37	−10.06
5	20.80	24.76	−19.04