Alt US-19 in Palm Harbor Public Workshop #1: Intersection - - PowerPoint PPT Presentation

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Alt US-19 in Palm Harbor Public Workshop #1: Intersection - - PowerPoint PPT Presentation

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Florida Department of TRANSPORTATION Alt US-19 in Palm Harbor Public Workshop #1: Intersection Improvements District 7 Traffic Operations September 29 th , 2015 Florida Department of Transportation 1 Meeting Agenda Opening Remarks and

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SLIDE 1

Florida Department of Transportation

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Florida Department of

TRANSPORTATION

Alt US-19 in Palm Harbor

Public Workshop #1: Intersection Improvements District 7 Traffic Operations

September 29th, 2015

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SLIDE 2

Florida Department of Transportation

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Meeting Agenda

  • Opening Remarks and Welcome
  • Introduction to Elected Officials
  • Presentation
  • Question and Answer Session

Please reserve questions for the Q&A session

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SLIDE 3

Florida Department of Transportation

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Alt-19 & Florida Avenue

Florida Avenue Florida Avenue Nebraska Avenue Georgia Avenue Pinellas Trail Pinellas Trail Source: Google Earth

  • 21,000 vehicles per day (2014)
  • Two 11’ through lanes
  • Two way center left turn lane
  • Pinellas trail to the west
  • Bike Lanes in both directions
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SLIDE 4

Florida Department of Transportation

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Average Annual Daily Traffic

5,000 10,000 15,000 20,000 25,000 30,000 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

Historical Average Annual Daily Traffic (AADT)

Source: ALT US 19 at Florida Avenue Roundabout Feasibility Study

Average Annual Daily Traffic on Alt US-19 (Northbound and Southbound)

1998-2007 (Average) 2008-2014 (Average) 2035 (Projection) 25,000 21,500 23,880

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Florida Department of Transportation

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Alt-19 Intersection Options

Florida Avenue Florida Avenue Nebraska Avenue Georgia Avenue Pinellas Trail Pinellas Trail Source: Google Earth

1.Current Stop Signs (Florida & Nebraska Ave.) 2.Traffic Signal (Nebraska Avenue) 3.Roundabout (Florida Avenue)

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Florida Department of Transportation

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Objectives

  • 1. Pedestrian/Cyclist Safety
  • 2. Motorist Safety
  • 3. Side Street Access to Alt US-19
  • 4. Efficient Traffic Flow Along Alt-19
  • 5. Gateway to Historic Downtown Palm Harbor

Source: Historic Downtown Palm Harbor Master Plan

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Florida Department of Transportation

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Objectives

  • 1. Pedestrian/Cyclist Safety
  • 2. Motorist Safety
  • 3. Side Street Access to Alt US-19
  • 4. Efficient Traffic Flow Along Alt-19
  • 5. Gateway to Historic Downtown Palm Harbor

Source: Historic Downtown Palm Harbor Master Plan Page 11

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SLIDE 8

Florida Department of Transportation

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Objectives

  • 1. Pedestrian/Cyclist Safety
  • 2. Motorist Safety
  • 3. Side Street Access to Alt US-19
  • 4. Efficient Traffic Flow Along Alt-19
  • 5. Gateway to Historic Downtown Palm Harbor

Source: Historic Downtown Palm Harbor Master Plan Pg. 11

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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SLIDE 10

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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SLIDE 11

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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SLIDE 13

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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SLIDE 14

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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SLIDE 15

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Stop Signs

Pedestrian/Cyclist Safety

  • Lacks controlled

crossing across Alt-19

  • Crosswalks

available across Florida Ave

Alt-19 & Florida Looking East

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Florida Department of Transportation

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  • 1. Controlled pedestrian crossing at Nebraska Ave.

Traffic Signal: Nebraska

Pedestrian/Cyclist Safety

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Florida Department of Transportation

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  • 1. Controlled pedestrian crossing at Nebraska Ave
  • 2. Risk from turning vehicles

Traffic Signal: Nebraska

Pedestrian/Cyclist Safety

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SLIDE 19

Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety 90% Survive 50% Survive 10% Survive

Speed & Safety

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SLIDE 20

Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

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SLIDE 21

Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

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SLIDE 22

Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

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SLIDE 23

Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

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Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

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Florida Department of Transportation

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Roundabout: Florida Ave

Pedestrian/Cyclist Safety

  • 40th St – 3 intersections

Hillsborough Ave to Busch Blvd

  • 1995 – 2 Lanes with 3 Traffic Signals
  • 2014 – 4 Lanes with 3 Roundabouts

All 3 Intersection Yearly Average Crashes Traffic Signal

(2005-2009)

Roundabout

(2012-2015*)

Pedestrian 2.4 per year 0 per year Bicycle 0.8 per year 0 per year Before After *From 2012 through Aug 2015 All 3 Intersection Yearly Average Crashes Traffic Signal

(2005-2009)

Roundabout

(2012-2015*)

Pedestrian 2.4 per year ZERO Bicycle 0.8 per year ZERO

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Stop Signs

Motorist Safety

  • Greatest threat is

“Angle” and “Left-Turn” crash types.

  • No fatalities within the

last 6 years

Angle Crash & Left Turn Crashes

Crash Types Represent 85.5% of Fatal Unsignalized Intersection Crashes

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Florida Department of Transportation

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77% Reduction Angle Left-Turn Rear-End

Traffic Signal: Nebraska Ave

Motorist Safety

60% Reduction 58% Increase

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Florida Department of Transportation

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Roundabout: Florida Ave

Motorist Safety

Sideswipe Crash Roundabout

Low Speed

Angle Crash & Left Turn Crashes Stop Signs or Traffic Signal

90% Reduction in Fatal & Serious Injury Crashes

(vs. Stop Signs & Traffic Signals) Source: Insurance Institute for Highway Safety

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Florida Department of Transportation

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Sideswipe Crash Roundabout Angle Crash & Left Turn Crashes Stop Signs or Traffic Signal

Roundabout: Florida Ave

Motorist Safety

90% Reduction in Fatal & Serious Injury Crashes

(vs. Stop Signs & Traffic Signals) Source: Insurance Institute for Highway Safety Low Speed

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Stop Signs

Side Street Access/Delay

  • Crossing and

turning traffic must wait for gaps in traffic along Alt-19

  • Off-peak, no delay

after stop

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SLIDE 33

Florida Department of Transportation

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Traffic Signal: Nebraska Ave

Side Street Access/Delay

Expected Delay

Stop Sign: Nebraska Ave Traffic Signal: Nebraska Ave

Wait Difference

AM Delay 20 Seconds 16 Seconds

4 Seconds Less

PM Delay 27 Seconds 18 Seconds

9 Seconds Less

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Florida Department of Transportation

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Roundabout: Florida Ave

Side Street Access/Delay

Expected Delay Westbound

Stop Sign: Florida Ave Roundabout: Florida Ave Difference

AM Delay 24 Seconds 6 Seconds 18 Seconds Less PM Delay 31 Seconds 8 Seconds 23 Seconds Less

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Florida Department of Transportation

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Roundabout: Florida Ave

Side Street Access/Delay

Expected Delay Eastbound

Stop Sign: Florida Ave Roundabout: Florida Ave Difference

AM Delay 24 Seconds 8 Seconds 16 Seconds Less PM Delay 31 Seconds 8 Seconds 23 Seconds Less

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Stop Signs

Efficient Traffic Flow Along Alt-19

  • Currently, no delay for

traffic along Alt-19

  • This condition may

contribute to speeding along Alt-19

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Florida Department of Transportation

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  • Great when green
  • Delay when red
  • may encourage speeding

to “beat the light.”

  • Traffic slow to start up

when it turns green.

Traffic Signal: Nebraska

Efficient Traffic Flow Along Alt-19

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SLIDE 39

Florida Department of Transportation

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Expected Delay

(Northbound & Southbound Average)

Roundabout: Florida Ave Traffic Signal: Nebraska Ave

Wait Difference

AM Delay 10 Seconds 11 Seconds 1 Second PM Delay 13 Seconds 12 Seconds 1 Second

Roundabout: Florida Ave

Efficient Alt- 19 Traffic Flow

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Florida Department of Transportation

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Florida Department of Transportation

Roundabout Simulation

Audience, Please Focus on: Pedestrian Traffic, 18-Wheeler, & Delay on Southbound Alt-19

Click Image to Begin Video

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SLIDE 41

Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Stop Signs

Gateway Potential

  • Limited opportunities

to make intersection more attractive

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Florida Department of Transportation

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  • Custom signals make intersections more attractive.
  • Aesthetics funded by local agencies
  • Located at Nebraska Avenue

Traffic Signal: Nebraska Ave

Aesthetic Downtown Gateway

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Florida Department of Transportation

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  • Provides more room for landscaping/hardscaping
  • Aesthetics funded by local agency

Roundabout: Florida Ave

Gateway Potential

Edison Landing: Muskegon, MI Five Points: Sarasota, FL

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Florida Department of Transportation

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Intersection Options

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

INTERSECTION OPTIONS OBJECTIVES

Pedestrian/ Cyclist Safety Motorist Safety Side-Street Access to Alt 19 Efficient Traffic Flow Along Alt 19 Aesthetic Downtown Gateway

Stop Signs Traffic Signal At Nebraska Ave Modern Roundabout at Florida Ave

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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

Good Design = Good Results Bad Design = Bad Results

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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

Traffic Signals

Prior to 1999

  • 9 Total intersections
  • Congestion
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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

Fountain Roundabout 1999 - 2002

  • 9 Intersections replaced

with Roundabout

  • Fountain added
  • Crashes Doubled
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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

Modern Roundabout 2002 – Present What Was Changed?

  • Fountain spray eliminated
  • Horizontal obstructions

removed

  • Entrance/exit alignment fixed
  • Pavement striping improved
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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 CRASHES PER WEEK YEAR

Average Crashes Per Week

Modern Roundabout 0.07/wk 9 Intersections 2.25/wk Fountain Roundabout 4.5/wk

82% reduction

(vs fountain roundabout)

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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 CRASHES PER WEEK YEAR

Average Crashes Per Week

Modern Roundabout 0.07/wk 9 Intersections 2.25/wk Fountain Roundabout 4.5/wk

82% reduction

(vs fountain roundabout)

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Florida Department of Transportation

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Florida Department of Transportation

City of Clearwater Roundabout

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 CRASHES PER WEEK YEAR

Average Crashes Per Week

Modern Roundabout 0.07/wk 9 Intersections 2.25/wk Fountain Roundabout 4.5/wk

82% reduction

(vs. fountain roundabout)

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Florida Department of Transportation

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Thank You. Question & Answer