Go to File / Open (type dataview) and open balanced.dvw, the Friction Factor Lookup Table, and the skimtree matrix. Go to Planning / Trip Distribution / Gravity Application. The Gravity Application dialog box will appear.

Under "Production-Attraction Data," enter:

• Dataview: TAZ + TRIPS (balanced Ps and As)
• Records: All Features

In the "Friction Factor Settings" area:

• For "FF Table", select: fflkup
• For "FF Time", select: MIN_TT
• For "Impedance Matrix", select: skimtree
• Constraint Type: Doubly

On the "General" tab under "Purpose Information for New", select "Add a Purpose" and enter:

• Change Name for Purpose 1 to: HBW
• Productions: TRIPS.FHBW_P
• Attractions: TRIPS.FHBW_A
• Iterations: 10
• Convergence: 0.001

Repeat for HBO and NHB trip purposes.

Under "Friction Factor", enter:

• For HBW, select HBW_FF
• For HBO, select HBO_FF
• For NHB, select NHB_FF
• For "Imp Core", select skimtree

Click OK and save output matrix as p-a.mtx. Under "Label", enter P-A.