《Tab.6 Velocity of K1, K2 and K3》

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《桥面径流的时空分布特性（英文）》

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m/s

We also found that the velocity of the observation points have similar changing law s to the ponding depth at the curb and lane WFT.Thus，this study only presents partial velocity results in Tab.5 and Tab.6，w hich show s that the velocity and runoff depth reach the maximum value at the same time.The curb obstructs the runoff flow of D1 and D2 in the Y direction.Thus，Vyis close to 0.D3is the observation point directly above an inlet，the runoff can flow into the inlet，so Vyof D3 is not 0.On the other hand，the direction of velocity can be calculated by Vy/Vx.Except for D3，the direction of velocity is almost constant w ith the rainfall intensity changing.M oreover，the velocity direction of D1 is almost the same as that of D2，w hich also exists in K1，K2 and K3.M eanw hile，since the longitudinal slope is larger than the traverse slope，the Vyof K1，K2 and K3 is larger than that of Vx.