Development of Bowling Greens First Roundabout Greg Meredith P.E., - - PowerPoint PPT Presentation

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Development of Bowling Greens First Roundabout Greg Meredith P.E., - - PowerPoint PPT Presentation

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Development of Bowling Greens First Roundabout Greg Meredith P.E., District 3 Chief District Engineer Arrell Thompson P.E., Burgess & Niple Sept. 9, 2014 Joe Plunk, P.E., District 3 Project Development Branch Mgr Outline 1. Existing

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SLIDE 1

Development of Bowling Green’s First Roundabout

  • Sept. 9, 2014

Greg Meredith P.E., District 3 Chief District Engineer Arrell Thompson P.E., Burgess & Niple Joe Plunk, P.E., District 3 Project Development Branch Mgr

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SLIDE 2

Outline

  • 1. Existing Conditions
  • 2. Pre-design Project History
  • 3. Benefits of Roundabouts
  • 4. Development of Design Project
  • 5. Getting the Project to Letting
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SLIDE 3

Project Location Map

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SLIDE 4

Constraints

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SLIDE 5

Project Orientation

  • Approximate Traffic Numbers

– US 31W North approx. 18,000 ADT – US 31W South approx. 22,000 ADT – University Blvd approx. 19,000 ADT – Chestnut Street approx. 4,500 ADT – Loving Way approx. 2,500 ADT

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SLIDE 6

US 31W Bypass looking North, construction completed just after World War II.

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SLIDE 7

Chestnut approaching US 31W

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SLIDE 8

Intersection of Chestnut Street with US 31W Bypass.

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SLIDE 9

Motorist turning left from Northbound US 31W onto Chestnut Street.

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SLIDE 10

Chestnut Street is a key route with WKU bus routes.

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SLIDE 11

Utilities adjacent to University Boulevard.

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SLIDE 12

University Boulevard traffic queue approaching US 31W.

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SLIDE 13

Loving Way approach to US 31W.

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SLIDE 14

Queue on Loving Way.

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SLIDE 15

Outline

  • 1. Existing Conditions
  • 2. Pre-design Project History
  • 3. Benefits of Roundabouts
  • 4. Development of Design Project
  • 5. Getting the Project to Letting
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SLIDE 16

Scoping Study in 2007-2008

  • QK4 was tasked on

their statewide design contract to look at possible solutions to include both intersections

  • They developed

several alternatives:

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SLIDE 17

Alternative 1: Widen for turn lanes

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SLIDE 18

Alternative 2: Realign Chestnut Street

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Alternative 5: Dual Roundabouts

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Alternative 6: Single Roundabout

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SLIDE 21

Roundabout Moratorium

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SLIDE 22

Roundabouts again an alternative

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2008 Highway Plan Project Allotments: (Item No. 3-131)

Right ght of

  • f Way

ay Ut Utili ilities Construc uction

  • n

To Tota tal $470,000 $760,000 $1,130,000 $2,360,000

2010 Highway Plan Project Allotments:

Right ght of

  • f Way

ay Ut Utilit ilities Construc uction

  • n

Tot

  • tal

al $470,000 $760,000 $2,200,000 $3,430,000

2012 Highway Plan Project Allotments:

Right ght of

  • f Way

ay Ut Utili ilities Construc uction

  • n

To Tota tal $1,050,000 $760,000 $1,170,000 $2,980,000

  • all State Bond Funds- i.e. secure funds
  • all “SPP” and State Bond Funds- i.e. still secure

Approved Highway Plan Funding:

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SLIDE 24

Feasibility Study by KTC (Adam Kirk)

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SLIDE 25

Outline

  • 1. Existing Conditions
  • 2. Pre-design Project History
  • 3. Benefits of Roundabouts
  • 4. Development of Design Project
  • 5. Getting the Project to Letting
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Benefits of Roundabouts

  • 1. Conflict points are reduced
  • 2. Geometrics encourage speed reduction
  • 3. Lower operating speeds reduce crash severity
  • 4. Continuous flow reduces delay
  • 5. Reduced fuel consumption (noise & air quality

impacts)

  • 6. Operation/maintenance costs can be less than

signalized

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SLIDE 27

Outline

  • 1. Existing Conditions
  • 2. Pre-design Project History
  • 3. Benefits of Roundabouts
  • 4. Development of Design Project
  • 5. Getting the Project to Letting
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SLIDE 28

Project Purpose & Need

The purpose of this project is to improve safety and mobility for motorists, bicyclists, and pedestrians along US 31W through the intersections with University Boulevard/Loving Way and with Chestnut Street.

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Project Development Milestones

  • KYTC issues Request for Proposals (RFP)
  • Nov. 2010
  • Consultant receives Notice to Proceed for

Preliminary Engineering

June 2011

  • Project Team Meeting reviews Traffic Micro-

simulation Analysis (VISSIM)

  • Sept. 2011
  • Line & Grade Inspection to select

recommended alternative

  • Nov. 2011
  • Consultant receives Notice to Proceed for

Final Design

June 2012

  • Joint Inspection & Utility Coordination Meeting
  • Jan. 2013
  • Public Meeting & ROW and Utility Funds

authorized

  • Feb. 2013
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SLIDE 30

Unique Project Challenges

  • 1. WKU

Minimizing property impacts Younger driving population Transit route

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SLIDE 31

Unique Project Challenges

  • 2. Residences on two of four quadrants
  • Limited

existing ROW

  • Entrances
  • 23 parcels
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SLIDE 32

Unique Project Challenges

  • 3. Profile grade and cross slopes into intersection

US 31W ~ 4% profile grade Chestnut St. ~ 5% profile grade US 31W horizontal curve creates superelevated pavement slopes

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SLIDE 33

Recommended Alternative

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SLIDE 34

Outline

  • 1. Existing Conditions
  • 2. Pre-design Project History
  • 3. Benefits of Roundabouts
  • 4. Development of Design Project
  • 5. Getting the Project to Letting
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SLIDE 35

Utility Coordination

  • KYTC acquired utility

easements

  • KYTC paid 100% for

private if dates met

  • 7 utilities
  • BGMU 69 kV trans. line
  • AT&T duct bank
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SLIDE 36

Project Development Milestones

  • Coordination begins on Lighting Plans (Div. of

Traffic, BGMU, B&N)

  • Mar. 2013
  • NTP for Statewide ROW Services (HMB)
  • Apr. 2013
  • Geotech drilling for self supporting steel poles
  • Aug. 2013
  • Coordination begins w/ WKU on Landscaping
  • Sep. 2013
  • ROW Clear (only 1 condemnation)
  • Dec. 2013
  • First utility agreement executed
  • Dec. 2013
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SLIDE 37

Project Development Milestones

  • Utility relocations begin (to clear by May 15)
  • Jan. 2014
  • Final plans submitted (+addendums)
  • Mar. 2014
  • Letting
  • Apr. 25, 2014
  • Contract awarded
  • Apr. 28, 2014
  • Preconstruction Meeting

May 2, 2014

  • Construction begins

May 4, 2014

  • Ribbon Cutting / Open to Traffic (96 days)
  • Aug. 8, 2014
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SLIDE 38

Finished Product

Top Left: Ribbon cutting. Top Right: Stamped concrete truck apron. Bottom Right: WKU Gateway Wall in Central Island.

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SLIDE 39

Time Lapse Video

http://www.scottyscontracting.com/TimeLapse. wmv

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SLIDE 40

Development of Bowling Green’s First Roundabout

Thank you