Problem 1. Given the following data: Zonal Trip Productions/Attractions Impedances (Wu) Zone Production Attractiveness Origin Destination - J P A I 1 2 3 1 2000 4 1 5 10 15 2 0 10 2 10 4 10 3 0 12 3 15 10 15 Estimate all trip interchange volumes (zone-to-zone trips) assuming that calibration constant of the friction factor c = 1.9 and all socio-economic adjustment factors are equal to 1. Problem 2. Given: a) Zonal productions and attractiveness: Zone Productions Attractiveness 1 1000 2 2 0 5 3 2000 1 b.) Wu matrix Ku matrix J J I 1 2 3 I 1 2 3 1 5 20 10 1 1.1 1.5 0.8 2 20 5 10 2 0.6 1.2 0.5 3 10 10 5 3 1.0 1.4 1.3 c.) lnF = −1.5 × lnW Apply the gravity model to calculate all trip interchange (zone-to-zone) volumes