Determine the capacity for a two-lane approach to a signalized intersection that gets 45 seconds of green out of a cycle length of 100 secs. Studies show that the saturation discharge headway at the intersection is equal to 2.1 secs. Assume that the start-up lost time is equal to 2 secs, the clearance lost time is equal to 1.2 secs, and that the duration of the yellow interval is equal to 3.5 secs.

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?