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City of Virginia Beach City of Virginia Beach Indian River Road and Kempsville Road 1 Congested Locations from page 30 of the Hampton Roads Congggestion Management Process 2010 Up date 2 Congested Locations from Page 30 of the Hampton Roads Congggestion Management Process 2010 Update 3 CMP Congested Corridors from Page 53 of the Hampton Roads Congestion Management Process 2010 Update 3 4 Intersection Problems From 2006 to 2009 Virginia Beach Congested Intersections List: Ranked #1 in congestion 2009 Volume/Capacity Ratio: 1.86 5 6 7 Needed Capacity Excess Capacity -120% -70% -20% 80% 30% 1 7 Signalized Intersections:V/CRank 13 19 Indian River at Kempsville 25 Needed Capacity 31 37 43 49 Remaining CapacityofSignalized Intersections 55 61 67 73 79 85 91 97 =1 Volume /Capacity 103 109 115 121 127 133 139 145 151 157 163 169 175 Excess Capacity 181 187 193 199 205 Capacity 211 217 223 229 235 241 247 253 259 265 271 277 283 289 295 301 307 313 319 325 331 337 343 Traffic Volumes 36,252 29,884 79,427 6,964 69,905 11,790 64,288 55, 776 35,308 8 Existing PM Peak Hour Volumes F F = Level of Service 9 CtCost of TditilTraditional Improvemen t AlttiAlternatives SfSurface l anes 1 additional eastbound and westbound Indian River Road through lane 1 additional northbound and southbound Kempsville Road through lane Cost: ≈ $37 million 10 11 Kempsville Rd. Additional Surface Lanes Cost of Traditional Improvement Alternatives Grade separation Single Point Urban Interchange CtCost: ≈ $60.5 milli on 12 13 Kempsville Rd Grade Separation 12+ Non-Traditional At-Grade Intersections Object ive o f Arter ia ls (AASHTO): prov ide t he greatest surface-street mobility with limited or provisional access to adjacent land use At-Grade Minimal Bowtie pedestrian/bicycle Continuous Flow activity Continuous Green-T ½ - 1 mile signal Double Wide spacing Jughandle Wide right of way MdiMedian U-Turn Wide setbacks Multi-Lane Roundabout Paired Intersections More pedestrian/bicycle QdQuadran tRdt Roadway activ ity Superstreet Closer signal spacing Split Intersection Limited right of Throughabouts way Small setbacks 14 Initial Alternatives Evaluation RltiRelative ROW/ Ability to Business Impacts Handle Benefit/Cost Viable Alternative Traffic Ratio Alternative High Low Volumes Superstreet Median U‐Turn Quadrant Roadway Jughandle Displaced Left Turns Roundabout 15 Median U-Turn (MU) Indian River Road 16 Displaced Lefts (DL) Kempsville Road 17 MU/DL Concept 18 VISSIM Model Double Click Image to Play 19 Alternatives Evaluation Measures of Effectiveness Alternative Percent Volume Intersection Hourly Network Hourly Served at LOS “D” Exit Rate (vph) Exit Rate (vph) Existing 67% 5, 378 6, 616 Median U-turns on Indian River Road 69% 5,938 6,660 Displaced lefts on Kempsville Road 75% 5, 916 7, 224 Median U-turns on Indian River Road and Displaced Lefts on Kempsville Road 100% 7,936 9,014 (MU/DL) MOE’s developed in Synchro/Simtraffic 20 Cost Comparison of Improvement Alternatives Surface lanes 2 additional eastbound Indian River Road through lanes 1 additional northbound and southbound Kempsville Road through lane Cost: ≈ $37 million Grade separation Single Point Urban Interchange Cost: ≈ $60.5 million MU/DL Concept Cost: ≈ $10 milli on 21 Benefits of the MU/DL Concept Increased Capacity per lane than traditional designs Increased Safety du e to few er conflict points (≈50%) Decreased Cost from fewer lanes to build and maintain Decreased Emissions (≈25%-30%) Longer Service Life as a result of higher capacity per lane 22 Public Education and Acceptance 23 Displaced Left Turn Video 24 Fenton, Missouri Highway 30 at Summit Drive/Gravois Bluffs Blvd. Baton Rouge LA Airline Higgyhway 25 West Valley City, Utah Bangerter Highway at 3500 South. Shirley, New York Entrance to Dowing College 26 Next Steps City Engineer Brief Public Works Director Brief DCM Brief MLT Brief City T ransport ati on C ommitt ee VDOT Brief District City Council Brief – 6/08/10 and 6/15/10 FHWA Brief – 6/16/10 City Council Brief 7/6/10 TPO Brief 10/6/10 Public Information Meeting 27 Questions? Ranked #3 on CMP congested corridors list Most con gested in ter secti on in Vir gini a B each Volume/Capacity Ratio: 1.86 Approximately 100,000 vehicles pass through the intersection each day. $37 million to add surface lanes $$gp60.5 million for grade separation $10 million for (MU/DL) improvements Increase cappy()acity (100%) and Safety Decrease construction and R/W costs Reduce emissions (≈25%-30%) Provide longer service life 28.
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