Class_41_Trip_Generation_Example_2_Hando

# Class_41_Trip_Generation_Example_2_Hando - Trip Generation...

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Unformatted text preview: Trip Generation Example 2 Trip Generation Example 2 A neighborhood has 205 retail employees and 700 households with following characteristics: HH size 2 3 4 4 Income \$50,000 \$60,000 \$65,000 \$40,000 Non-workers Workers in peak-hour departing 1 2 2 3 1 1 2 1 Type 1 2 3 4 Trip Generation Example 2 Trip Generation Example 2 There are 100 type 1, 200 type 2, 300 type 3, and 100 type 4 households. # shopping trips = 0.12 + 0.09 (HH size) + 0.011 (HH income (1000’s)) – 0.15 (employment in HH neighborhood (100’s) # social/recreational trips = 0.04 + 0.018(HH size) + 0.009 (HH income (1000’s)) + 0.16 (# non­working HH members) Trip Generation Example 2 Trip Generation Example 2 Find: Total peak hour trips Method: Find # trips by purpose for each HH type Multiply by # HH of each type Add trips by type Type 1: 0.12+.0.09(2)+0.011(50)­0.15(2.05)= 0.5425 trips/HH Shopping trips For 100 HH this yields 54.25 trips in peak period for shopping Type 2: 0.12+.0.09(3)+0.011(60)­0.15(2.05)= 0.743 trips/HH For 200 HH this yields148.5 trips Type 3: 266.25 trips [.8875 trips/HH] Trip Generation Example 2 Trip Generation Example 2 Total shopping trips: 530 vehicle based shopping trips in peak hour Using similar approach for social recreational trips: 663 vehicle­base social recreational trips in peak hour Work Trips: (Workers departing) x (#HH) for each type 1(100)+1(200)+2(300)+1(100) = 1000 vehicle­based work trips in peak hour Total peak hour trips: 530+663+1000=2193 This is a simplified approach, but gives you an idea of some of the influential factors we need to consider Trip Distribution Trip Distribution Zone 1 Zone 2 Zone 3 Trip Distribution Trip Distribution Zone 1 Zone 2 Zone 3 Trip Distribution Trip Distribution Zone 1 Zone 2 Zone 3 2193 Peak Period Trips Distributed from Zone 1 to Zone 2/3 Route Choice Route Choice Zone 1 Zone 2 Zone 3 2193 Peak Period Trips Distributed from Zone 1 to Zone 2/3 ...
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