diverging diamond interchanges - Kentucky Transportation Cabinet

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Traffic - Existing Conditions 24 hour tube counts Turning movements at Peak Hours Existing signal timing Crash Data Evaluation using HCS: capacity Synchro: signal timing Paramics: micro-simulation and visualization DIVERGING DIAMOND INTERCHANGES ASHE 2010 National Conference June 9-13, 2010
Alternatives No Build 1 – Additional Lanes to Existing Diamond 2 – Eastbound/Northbound Loop Ramp 3 – Eastbound/Northbound & Southbound/ Eastbound Loop Ramps 4 – Partial Cloverleaf 5 – Diverging Diamond Interchange (DDI) 6 – Single Point Urban Interchange (SPUI) 7 – Double Roundabout 8 – Directional Fly-Over DIVERGING DIAMOND INTERCHANGES ASHE 2010 National Conference June 9-13, 2010
Page 1 and 2:
DIVERGING DIAMOND INTERCHANGES PRES
Page 3 and 4:
What is a Diverging Diamond Interch
Page 5 and 6:
From Where did DDI’s Originate?
Page 7 and 8:
D45 & A4 Le Perreux sur Marne, Fran
Page 9 and 10:
Diverging Diamonds Around the USA D
Page 11 and 12:
WHY a Diverging Diamond? DIVERGI
Page 13 and 14:
WHY a Diverging Diamond? Operations
Page 15 and 16:
WHY a Diverging Diamond? Operations
Page 17 and 18:
WHY a Diverging Diamond? Operationa
Page 19 and 20:
WHY a Diverging Diamond? DIVERGI
Page 21 and 22: WHY a Diverging Diamond? Safety D
Page 23 and 24: WHY a Diverging Diamond? Cost DI
Page 25 and 26: WHY a Diverging Diamond? Cost I-435
Page 27 and 28: FHWA Human Factors Driver Simulatio
Page 29 and 30: FHWA Driver Simulation Analysis I-4
Page 31 and 32: FHWA Driver Simulation Analysis I-4
Page 33 and 34: MoDOT: Public Response DIVERGING
Page 35 and 36: MoDOT’s Lessons Learned DIVERGING
Page 37 and 38: MoDOT’s Lessons Learned SPACING O
Page 39 and 40: MoDOT’s Lessons Learned HORIZONTA
Page 47 and 48: MoDOT’s Lessons Learned SIGHT DIS
Page 49 and 50: MoDOT’s Lessons Learned SIGHT DIS
Page 51 and 52: FHWA/MoDOT’s Lessons Learned OTHE
Page 53 and 54: FHWA/MoDOT’s Lessons Learned OTHE
Page 55 and 56: Concluding Remarks DIVERGING DIA
Page 57 and 58: Reference Materials: TECHNICAL DI
Page 59 and 60: Reference Materials: TECHNICAL
Page 61 and 62: Reference Materials: DOTS / PROJECT
Page 63 and 64: Reference Materials: DOTS / PROJECT
Page 65 and 66: CASE STUDY: I-75 BOONE COUNTY, KY 2
Page 67 and 68: Boone County Union Mt. Zion Rest Ar
Page 69 and 70: Existing Geometry Description I-71/
Page 71: Public Involvement The project tea
Page 75 and 76: Traffic Comparison LOS C = Desire
Page 77 and 78: Construction Cost Traditional Wide
Page 79 and 80: Design Lessons Learned DDI’s typ
Page 82 and 83: CASE STUDY - IR 480/TIEDEMAN RD. 20
Page 84 and 85: Existing Conditions N 5-lane wide
Page 86 and 87: Future Traffic Volumes DIVERGING DI
Page 88 and 89: SPUI N DIVERGING DIAMOND INTERCHANG
Page 90 and 91: Upgraded vs. Diverging Diamond Upgr
Page 92 and 93: Preliminary DDI Layout N DIVERGING
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