In this paper, we apply the Brydges-Spencer lace expansion and the Har
a-Slade analysis to obtain the triangle condition for the nearest-neig
hbor oriented bond percolation in high dimensions and for the spread-o
ut oriented bond percolation in Z(d) X Z, d greater than or equal to 5
. Furthermore, we also establish the infrared bound in the subcritical
region and the mean-field behavior for these models.