I 75 University Pkwy Interchange FDOT plan

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FDOT plan for I-75/University Parkway interchange at http://goo.gl/maps/oGquM

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I 75 University Pkwy Interchange FDOT plan

  1. 1. Project Location LimitsSarasota County MP 39.344 to I-75 Corridor: MP 42.615 From north of Fruitville Road toManatee County MP 0.000 north of University Parkway to MP 0.324 Approximately 3.5 mi University Parkway Corridor: From Cooper Creek Boulevard/ Scope Cattleman Road to Market Street/ Interim I-75 Widening Lake Osprey Drive and Ultimate Approximately 1.0 mi Interchange 2
  2. 2. Project Timeline Public Hearing June 2009 Step 3 Step 4 Step 1 Step 2 Right-of-Way Construction Right-of-Location Design PD&E Preliminary Acquisition Concept Acceptance Engineering (if required) required (LDCA) for the recommendedBuild Alternativeon December 8, 2011 Alternatives Public Notice to Workshop Proceed April 16, 2012 PublicPublic Meeting Public Meeting May, 2014 Hearing Sep Apr Apr TBD TBD 2007 2012 2016 3
  3. 3. Need for Project Provide relief from existing and projected traffic congestion Improve the safety of the highwayI-75 ImprovementsConsistent with: Provide a hurricane / emergency evacuation routeI-75 Engineering /Multi-Modal MasterPlan Increase regional connectivitySarasota-Manatee 200,000 10 Lane CapacityCounty Long RangeTransportation Plan(LRTP) 180,000 8 Lane Capacity Annual Average Daily Traffic (AADT) 160,000 140,000 120,000 6 Lane Capacity 100,000 80,000 60,000 40,000 20,000 0 2011 2015 Year 2025 2035 I-75 S. of University Pkwy I-75 N. of University Pkwy 4
  4. 4. PD&E Interchange AlternativesAll PD&EAlternativesReanalyzed duringthe Design Pursuit Preliminary Alternatives – Advanced Existing – Add Lanes Add NB-WB Loop Diverging Diamond Interchange Preliminary Alternatives – Not Advanced * EB-NB Flyover EB-NB Flyover & NB-WB Loop * Other alternatives produced acceptable levels of service without increased construction and right-of-way costs associated with the flyover structure 5
  5. 5. Interchange Traffic Analysis Reduced Delay and Annual I-75 University Parkway Savings Ultimate 10-Lane Four Lane Existing Add Add NB-WB Add EB-NB Add Loop andDDI provides more System Interchange DDIleft turn green time Lanes Loop Flyover Flyover which minimizing Configuration potential for Mainline LOS C/D C/D C/D C/D C/D backups and reduces density Ramp LOS B/C B/C B/C B/C B/C entering I-75 Ramp Termini LOS D/E C/D C/D B/D B/D Loop and Flyover Overall Interchange Delay Alternatives improve one Vehicle Hours of Delaymovement with little Annual Cost consideration to Reduction in Vehicle- other movements Alternative AM PM Total Savings Rank Hours of Delay ($M) No-Build 660.2 628.6 1288.8 0 0 0 Add Lanes to Existing Diamond 292.6 307.0 599.6 689.2 8.8 5 Interchange Northbound to Westbound Loop 245.3 205.0 450.3 838.5 10.7 4 Diverging Diamond Interchange (DDI) 177.9 157.1 335.0 953.8 12.2 1 Eastbound to Northbound Flyover 209.1 152.2 361.3 927.5 11.9 3 Northbound to Westbound Loop and 188.5 163.1 351.6 937.2 12.0 2 Eastbound to Northbound Flyover Least Delay Time and Highest Annual Savings 6
  6. 6. Interchange Analysis – Other FactorsReduced I-75 University ParkwayImpacts Ultimate 10-Lane Existing Add Add EB-NB Add Loop Four Lane System Add NB-WB DDI Flyover and Flyover DDI provides Interchange Configuration Lanes LoopComparable LOS Wetlands Low Low Low Low Low with Less Habitat Medium High Medium Medium High Environmental Environmental Impacts Species Low Low Low Low Low Contamination Low Low Low Low Low DDI providesComparable LOS Residential None None None None None with No ROW ROW Commercial None Medium None Medium Medium Costs Other None None None Medium Medium Roadway Costs Medium High Low High High DDI provides aComparable LOS Construction Structures Costs Low Low Low High High with Less Maintenance of Traffic Medium Medium Medium High High Construction Cost Other Factors – Quantitative Evaluation Criteria Factors Low Medium High Wetlands 0-5 Acres 5-10 Acres 10+ Acres Habitat 0-10 Acres 10-20 Acres 20+ Acres Mitigation is Difficult and Protected Species Mitigation not Anticipated Mitigation is Expected Costly Contamination Based on Contamination Risk Potential Rating (CRPR) ROW Impacts 0-5 Parcels 5-10 Parcels 10+ Parcels and Size Roadway Costs $100-$125 M $125-$150 M > $150 M Structure Costs < $20 M $20-$30 M > $30 M Temporary Pavement and Maintenance of Traffic Limited/No Detours Major Detours and Closures Minor Short Detouring 7
  7. 7. Interchange Analysis – Other Factors Safety DDI Enhances Vehicular, Pedestrian, and I-44 & Route 13 Bicyclist SafetyDDI Performance Evaluation • Traffic Conflict Points - DDI – 14 points; Diamond 26 points Completed by HDR Reduces crash rate and severity – 68% crash reduction HighlightedResults from the 97% of Drivers feel safer I-44 & Route 13DDI Performance Study • Reduces Vehicular Delay – DDI - Two Phase; Diamond Four Phase Reduces Interchange Delay by 15%-60% • Improves freeway flow by reducing density of entrance ramp traffic • Provides Capacity for High Volumes of Left-Turn Movements Increases Overall Capacity by 10% -30% • Improves Pedestrian Safety – Shorter Crossings with Signal Protection 80% of Users say Pedestrian and Bicycle Movement is Safer 8
  8. 8. Interchange AnalysisFDOT Approved Diverging Diamond RECOMMENDATION – The Diverging Diamond InterchangeInterchange at1-11-12 Scoping Meeting • Comparable level of service • Improved delay times • Reduced right-of-way costs • Reduced construction costs • Reduced environmental impacts • Safest interchange for vehicles, pedestrians and bicyclists N University Parkway 9
  9. 9. Project Timeline Public Hearing June 2009 Step 3 Step 4 Step 1 Right-of-Way Construction Right-of- PD&E Step 2Location Design Preliminary Acquisition Concept Acceptance Engineering (if required) required (LDCA) for the recommendedBuild Alternativeon December 8, 2011 Alternatives Public Notice to Proceed Workshop Public April 16, 2012Public Meeting Public Meeting May, 2014 Hearing Sep Apr Apr TBD TBD 2007 2012 2016 10
  10. 10. Design Schedule Notice to ProceedApril 16, 2012 2012 2013 2014 2015 2016 NTP April 16, 2012Public Meeting May, 2014 Design Survey R/W Survey & Mapping Phase I Design Phase II Design Final PlansMarch 21, 2016 Phase III Design Value Engineering Public Meeting Final Plans May 2014 Phase IV Design & Final Plans March 21, 2016 Noise Walls Geotechnical Permitting Utilities and ITS 11
  11. 11. I-75 Existing Typical LOS Dis acceptable for the Interstate Three 12-ft lanes in each direction 12-ft inside and outside shoulders (10-ft paved) 88-ft median Open drainage Acceptable LOS through 2014 12
  12. 12. I-75 Ultimate Typical Section LOS Dis acceptable for the Interstate Two Special Use Lanes in each direction (potential managed lanes) Three General Use Lanes in each direction 64-ft Median (Multi-Modal Envelope) Northbound Auxiliary Lane Acceptable LOS through 2035 13
  13. 13. I-75 Interim Typical Section FHWA Median Crossovers on Florida Interstate Widen One Lane to the InsideHighways – 9/14/07 M.P. 40.312 Advantages • Initial Roadway Cost Savings compared to the Ultimate - $28.9M • New lane aligns with the ultimate typical section inside lane – minimizes “throw-away” – Future Savings • Minimizes impacts to ITS Design Build Project – Savings TBD • Minimizes impacts to existing signs - $243K • Acceptable LOS through 2025 14
  14. 14. I-75 Interim Improvements 8-Lanes (Interim) Potential Noise Barrier Emergency Crossover Wildlife Crossing – Errie Canal Bridges 15
  15. 15. I-75 Interim Improvements No Right-of-Way for Stormwater Management Facilities I-75 Lanes Transition - Ultimate General Use Location I-75 Bridges over University Parkway – Ultimate General Use Location Ultimate Interchange – Minus Special Use Lanes and Bridges 16
  16. 16. University Parkway Interchange Typical Widen/Reconstruct University ParkwayFDOT PPM - 50 mph minimum for SIS University Strategic Intermodal System urban arterialsAASHTO – 30 mphon urban arterials (SIS) criteria Variation for design speed • Existing Posted Speed Limit = 45 mph • Existing Variation for 35 mph for DDI 17
  17. 17. University Parkway Improvements Diverging Diamond Interchange - Ultimate Interchange Additional through lane on University Parkway between Cattlemen Road/Cooper Creek Boulevard and Lake Osprey Drive/Market Street No R/W Anticipated No Modification to Existing Access Anticipated 18
  18. 18. DDI Traffic Operations – EB University and NB I-75 Traffic on University Parkway crosses paths twice N DDI crossingseliminate all turning movements from the signalized intersections All left turn movements occur without crossing oncoming traffic University University Results in fewer Parkway Parkwaytraffic signal phases and greater traffic capacityResults in far fewer conflict points, reducing number and severity of crashes 19
  19. 19. DDI Traffic Operations – WB University & SB I-75 Traffic on University Parkway crosses paths twice N DDI crossingseliminate all turning movements from the signalized intersections All left turn movements occur without crossing oncoming traffic University University Results in fewer Parkway Parkwaytraffic signal phases and greater traffic capacityResults in far fewer conflict points, reducing number and severity of crashes 20
  20. 20. Video – SR 92 & I-15 21
  21. 21. Bicycle Accommodation Bike Lane to right of outer lane Key Holes provided at right turn lane and on-ramps Off-Ramp Crossing protected by signal control University N Parkway Key Hole at Right Turn Key Hole at On-Ramp Signal Protection at Off-Ramp 22
  22. 22. Pedestrians Treatment SafetyConcern Common Practice to keep pedestrians to outside Conflicts with left turn onto on-ramp Unsafe condition with limited sight distance due to bridge abutmentUniversity NParkway 23
  23. 23. Pedestrians TreatmentImproved Safety Pedestrian Accommodations in Median Barrier Protected Median Six of Eight Crossing Signal Protected 80-90% public approvalUniversity NParkway 24
  24. 24. Public Involvement Community Awareness Plan Project Website – Not Yet Rolled Out • www.I-75_Sarasota-Manatee.com Public Meetings • Meeting #1 (60% Design) • May 2014 25
  25. 25. Comments Kevin S. Ingle, P.E. FDOT Project Manager, FDOT District One 801 North Broadway Avenue P.O. Box 1249 Bartow , Florida 33831 (863) 519-2740 Kevin.Ingle@dot.state.fl.us 26
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