florida department of transportation district one interstate planning for i-4 and i-75 october 30,...
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Florida Department of Transportation District One
Interstate Planning for I-4 and I-75
October 30, 2012
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Purpose
Define Deficiencies on the Interstate Mainline– Capacity needs between 2012 and 2050 if no
improvements were made
Determine Years in which Interstate Mainline Widening is Needed
Provide Recommendations for Managed Lanes Study Limits in D1
Determine feasibility of replacing bridge structures
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Traffic Methodology – Growth Rate Development
Available FDOT Traffic Data– FTI DVD
Recent and Current Studies– Central Polk Parkway IJR, I-75 SIMR, I-75/SR 951 IMR,
I-75/Everglades IJR
Cost Feasible Models– CPP IJR , SR 951 IMR– Lee-Collier , Sarasota-Manatee-Charlotte
Population Growth and Projections Reviewed– Census Data from 2000 and 2010 – BEBR Medium Projections 2010 to 2035
Recommended Growth Rate Selected• I-4 Growth Rate = 2.0%• I-75 Growth Rate = 2.5%
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Traffic Methodology – Capacity Analysis
Geometry and Functional Classification of Mainline Segments was Reviewed
LOS Standard Applied Segment by Segment– Rural Interstate – LOS C– Urban Interstate – LOS D
FDOT Generalized Tables used to Determine Capacity Thresholds– 6 lane – 8 lane
Recommended Growth Rate Applied to 2011 AADTs
I-4 Future Capacity Assessment
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Results – County Line Road to US 98/SR 35
NA: This segment currently has 8 lanes (6 lanes plus 1 auxiliary lane in each direction)
6 Lanes
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Results – US 98/SR 35 to Polk Pkwy West
LOS D
Urban
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Results – Polk Pkwy West to Champion’s Gate Blvd
6 Lanes
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Conclusions – Phase 1: US 27 to Champions Gate Blvd
8 Laning: This segment currently exceeds the 6-lane LOS C threshold
10 Laning: This segment requires widening to 10 lanes in 2021
6 Lanes
LOS C
Rural
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Conclusions – Phase 2: County Line Rd to Polk Pkwy West
8 Laning: This segment is currently 8 lanes.
10 Laning: This segment requires widening to 10 lanes in 2029
LOS D
Urban
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Conclusions – Phase 2: Polk Pkwy East to US 27
8 Laning:
This segment requires widening to 8 lanes between 2017 and 2021
10 Laning:
This segment requires widening to 10 lanes between 2032 and 2036
6 Lanes
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Conclusions – Phase 3: Polk Pkwy West to N. Socrum Loop Rd
8 Laning:
This segment requires widening to 8 lanes between 2025 and 2030
10 Laning:
This segment requires widening to 10 lanes between 2039 and 2045
6 Lanes
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Conclusions – Phase 4: N. Socrum Loop Rd to Polk Pkwy East
8 Laning:
This segment requires widening to 8 lanes between 2035 and 2036
10 Laning:
This segment requires widening to 10 lanes between 2050 and 2051
LOS D
Urban
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Summary – I-4 Capacity AnalysisPhasing - 8 Lanes Widening
Phasing - 10 Lanes Widening
8 Lanes provide acceptable LOS for 15 years
Managed Lanes Feasibility can be examined up to Polk Pkwy East
I-75 Future Capacity Assessment
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Conclusions – Phase 1: US 301 to US 41
8 Laning:
This segment requires widening to 8 lanes between 2012 and 2020
10 Laning:
This segment requires widening to 10 lanes between 2023 and 2031
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Conclusions – Phase 2: US 41 to N River Rd
8 Laning:
This segment requires widening to 8 lanes between 2021 and 2027
10 Laning:
This segment requires widening to 10 lanes between 2033 and 2039
Requires 6 laning in 2012
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Conclusions – Phase 3: North of Moccasin Wallow Rd to I-275
8 Laning:
This segment requires widening to 8 lanes in 2034
10 Laning:
This segment requires widening to 10 lanes between 2045 and 2050
NA: This segment currently has 8 lanes (6 lanes plus 1 auxiliary lane in each direction)
LOS D
Urban
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Conclusions – Phase 3: N River Rd to Choctaw Blvd
8 Laning:
This segment requires widening to 8 lanes between 2033 and 2036
10 Laning:
This segment requires widening to 10 lanes between 2044 and 2048
LOS C
Rural
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Conclusions – Phase 3: SR 80 to Pine Ridge Rd
8 Laning:
This segment requires widening to 8 lanes between 2026 and 2035
10 Laning:
This segment requires widening to 10 lanes between 2037 and 2047
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Conclusions – Phase 4: Choctaw Blvd to SR 80
8 Laning:
This segment requires widening to 8 lanes between 2037 and 2048
10 Laning:
This segment requires widening to 10 lanes between 2048 and 2059
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Conclusions – Phase 5: Pine Ridge Rd to SR 29
8 Laning:
This segment requires widening to 8 lanes between 2040 and 2077
10 Laning:
This segment requires widening to 10 lanes beyond 2051
LOS D
Urban
6 Lanes
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Summary – I-75 Capacity Analysis
Phasing - 8 Lanes Widening
Phasing - 10 Lanes Widening
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Summary Contd.
8 Lanes provide acceptable LOS for 11 to 12 years
Managed Lanes Feasibility can be extended to – US 301 to US 41/SR 681– US 41/SR 681 to N. River Rd