Research Article

Speed Behavior of Passenger Car on Helical Ramps and Helical Bridges in Mountain Riverside City

Table 3

Regression model coefficients and the goodness of fit.

Objectb1b2R2

Ascending ramp 21.803-43.1750.940
Ascending ramp 20.496-41.870.906
Descending ramp 28.494-68.1980.962
Descending ramp 22.593-49.7120.876