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To solve our Fratar Method problem, we must first look at our 'Givens.' We have two primary datasets to work with. First, look at the top table. This is our current Origin-Destination (O-D) matrix. It shows exactly how many trips are currently occurring between our four zones: A, B, C, and D. For instance, you can see that there are currently 400 trips moving from Zone A to Zone B. The row totals and column totals both sum up to a system-wide total of 2,400 trips per day. Now, look at the second