To get the fastest water entry into the pipe, choose a 4-inch 8-row lateral drain pipe. To save on cost, you can go with a 3-inch 4-row pipe, but there are risks invovled.
To read about the difference between 3 and 4-inch laterals, click here.

The rate of water movement through the drainage pipe network.

Choose a drainage coefficient that is greater than or equal to drainage intensity.

To learn about drainage intensity, watch this video.