8/18/2019 Dallas TrinityParkway TrafficEstimates 2016-04-11

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Sensitivi ty Analysis - Trinity Parkway Staging4/7/2016

6. Free(comparison only, traffic

benefits of tolling) 1. FEIS 2. 4 Lanes 3. Fewer Ramps

4. Smaller

SH 183/IH 35E

Interchange 5. 45 mph

Free/Toll Free Toll Toll Toll Toll TollToll Rate none Standard Standard Standard Standard StandardTrucks Excluded Yes Yes Yes Yes Yes Yes

Number of Lanes 6 6 4 4 4 4Number of Cross Street Ramps 28 28 28 8 8 8Number of Connections at IH 35E/SH 183 6 6 6 6 4 4Speed 55 55 55 55 55 45Information provided at 1/21/16 meeting? No Yes, listed as FEIS Yes, Listed as Alt 1 Yes, listed as Alt 4 No No

Travel Benefits per year $251,800,000 $314,800,000 $168,700,000 $165,600,000 $161,200,000 $118,200,000Travel Benefits over 22 years (2013-2035) $5,538,800,000 $6,925,700,000 $3,710,300,000 $3,642,700,000 $3,546,700,000 $2,601,000,000Total Project Costs (2013) $1,461,000,000 $1,461,000,000 $1,257,800,000 $1,124,400,000 $1,084,400,000 $1,084,400,000

Change in Project Costs from FEIS $0 $0 -$203,200,000 -$336,600,000 -$376,600,000 -$376,600,000% Change in Cost from FEIS 0.0% 0.0% -13.9% -23.0% -25.8% -25.8%

Benefit Cost Ratio (12-county DFW region) 3.79 4.74 2.95 3.24 3.27 2.40

Facility Daily VMT 1,130,400 828,300 646,800 617,900 617,000 508,000Change in VMT from FEIS 302,100 0 -181,500 -210,400 -211,300 -320,300% Change in VMT from FEIS 36.5% 0.0% -21.9% -25.4% -25.5% -38.7%

Ratio of VMT compared to FEIS VMT 1.4 1.0 0.8 0.7 0.7 0.6 Average Daily Traffic Volume 156,200 114,500 89,400 85,400 85,300 70,200Cost per VMT $1,292 $1,764 $1,945 $1,820 $1,758 $2,135Ratio of cost reduction and change in VMT na na 0.63 0.91 1.01 0.67DFW Region

Daily VMT 281,141,300 282,469,200 281,091,600 281,088,500 281,107,900 281,103,200Daily VHT 8,014,200 8,003,700 8,028,000 8,028,500 8,029,200 8,036,400Vehicle Hours of Congestion Delay 1,753,600 1,798,000 1,763,200 1,763,200 1,763,000 1,766,400Vehicle Hours of Traffic Control Delay ofUsed Roadways 722,200 720,300 725,200 725,500 725,700 726,500

Notes:

Cross Street ramps included: north side of Inwood/Hampton, south side of Sylvan, south side of Riverfront, and north side of Lamar

Benefit Costs Ratio calculated based on change in vehicle hours of traffic control delay of used roadways * vehicle occupancy of 1.3 * $16.54/hour * 280 days per year 

Ratio of cost reduction and change in VMT was determined by dividing the percentage reduction in cost divided by the percentage reduction in VMT; the largest result is the best alternative

VMT = vehicle miles traveled

VHT = vehicle hours traveled

Performance Data (2035)

Parameters

Costs/Benefits