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Surface Transportation Efficiency Analysis Model (STEAM)SMITE-ML 2.2 White Paper

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TABLE 1. MODEL INPUTS
SOUTHERN SEGMENT            
Length 9.00          
  No Build          
Travel demand and highway capacity: 0          
Total daily person trips 445,000          
Percent in peak periods 0.50          
Transit mode share 0.04          
Bus occupancy (avg.) 20          
Avg. auto occupancy 1.10          
Avg carpool occupancy 2.20          
Off-peak avg. auto ccupancy 1.60          
Percent of traffic volume on freeways 84.00%          
Freeway capacity per lane (vph) 2,370          
Number of restricted freeway lanes 8          
Total arterial capacity (vph) 4,000          
             
  No 1 No 2 No 3 No 4 No 5 No 6
  10 GP Ln 4 ET+EB 4 ET + BRT 4 HOT+EB 4 HOT+BRT 10 H + BRT
Change in in-vehicle time 0 0 0 0 0 0
Solo driver -6.9 -7.9 -7.7 -6 -7 -21
Carpool -6.9 -7.9 -7.7 -30 -30 -30
Transit -6.9 -15 -30 -15 -30 -30
             
Change in out-of-vehicle times (min) 0 0 0 0 0 0
Solo driver 0 0 0 0 0 0
Carpool 0 0 0 0 0 0
Transit 0 0 -5 0 -5 -5
             
Change in out-of-pocket costs (cents) 0 0 0 0 0 0
Solo driver 0 0 0 0 0 0
Carpool 0 0 0 0 0 0
Transit 0 0 0 0 0 -100
             
Freeway capacity per lane - managed lanes (vph) 2,280 2,280 2,280 2,280 2,280 2,400
Freeway capacity per lane- GP lanes(vph) 2,400 2,310 2,310 2,310 2,310 2,280
Number of restricted freeway lanes 0 4 4 4 4 10
Number of GP lanes 10 6 6 6 6 0
% of capacity used at LOS C (free-flow) 0.75 0.75 0.75 0.75 0.75 0.85
             
Transit costs:            
Transit subsidy per passenger mile $0.50 $0.50 $0.50 $0.50 $0.50 $0.50
Cost per passenger mile for low fare service $0.00 $0.00 $0.00 $0.00 $0.00 $0.20
             
Highway costs (million $):            
Construction cost per added lane mile $10.00 $10.00 $10.00 $10.00 $10.00 $10.00
Construction cost per mile of lane separation $0.00 $2.00 $2.00 $2.00 $2.00 $0.00
Interchange modification costs per mile $20.00 $20.00 $20.00 $20.00 $20.00 $20.00
Direct connector ramp const cost per mile $0.00 $10.00 $10.00 $10.00 $10.00 $0.00
Toll collection equipment cost per mile $0.00 $1.00 $1.00 $1.00 $1.00 $2.00
Total capital cost per mile $40.00 $55.00 $55.00 $55.00 $55.00 $42.00
             
Annual maintenance costs per added lane mile $0.05 $0.05 $0.05 $0.05 $0.05 $0.05
Annual law enforcementcosts per mile $0.00 $0.00 $0.00 $0.10 $0.10 $0.10
Discount factor for 7% discount rate/30-year payback 12.409 12.409 12.409 12.409 12.409 12.409
Annualized highway cost per mile $3.32 $4.53 $4.53 $4.63 $4.63 $3.58
Present value of highway costs $371.17 $506.17 $506.17 $517.34 $517.34 $400.34
             
User and external benefits:            
No. of construction days 250 250 250 250 250 250
% increase in delays due to construction 100% 100% 100% 100% 100% 100%
Fuel cost per gallon excluding taxes $1.60 $1.60 $1.60 $1.60 $1.60 $1.60
External cost per VMT($) $0.06 $0.06 $0.06 $0.06 $0.06 $0.06

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