Corridor Management Committee Kickoff Meeting

June 9, 2014

SR 109 Access Management Study

Agenda

Welcome and Introductions

What is Access Management? And, why is It

Important?

Scope of Services for SR 109 project

Project Schedule

Next Steps

What is Access Management? Why is it Important? Access Management is the careful consideration

of the location, type and design of vehicular access points to a roadway.

It is the recognition that vehicular maneuvers and volumes at each access point will have specific and accumulative consequences to the flow and safety of the street for all user types.

When Access Principles are Applied to a Specific Corridor Crashes are

reduced by 30 to 60 percent

Capacity is increased by 20 to 40 percent

Demosthenes

Business Benefits

Commercial businesses depend on efficient transportation services.

Retail market areas are determined in part by travel time.

Non-retail business - manufacturing, distribution, service providers and offices are best served by safe and efficient roadways for employees, and movement of goods and services.

Good for the Community

Better travel time to work, recreation, and shopping

Safer for families – fewer major crashes

Tax dollar investment lasts longer

When Access is Not Managed Increased vehicular crash rates

Decreased pedestrian and cyclist safety

Reduced roadway efficiency

Encourage strip development

Increased travel time for everyone

Decreased market area for retail and employment.

Roadways are the Most Dangerous Public Facilities on the Face of the Earth

Each day about 92

people die (2012)

Over 15,000 Crashes

each day

Over 4,100 Injuries

each day

Which means: one person of every 90 born today will die violently in a motor vehicle crash. 70 out of every 100 will be injured at some point in their lives.

AASHTO Strategic Highway Safety Plan

The most likely cause of the death of a child is a traffic accident.

AASHTO Strategic Highway Safety Plan

We Know that

The most likely cause of accidental death of an adult is a traffic accident

27.3 % of all reported crashes

Almost 25% of all traffic fatalities

Almost 50% of all traffic injuries

About 55% of all crashes are related to access

Traffic signals increase crash frequency

We Know that at Intersections

National Intersection Crash Statistics

Business Market Area Shrinks as Arterial Speed is Reduced by Congestion and More Traffic Signals.

Assuming a 20 minute trip, dropping from average speed of 35 mph to 25 means over 50% reduction in market area.

Source: Florida DOT

Estimated Savings in Travel Time & Delay:

1/2 v. 1/4 Signals + Side Friction in 5 Miles

Travel Speed MPH

Total Travel Time

Veh-H/H

Total Delay Time

Veh-H/H Access Controlled Segment

22 542 275

Unrestricted Segment 13 942 675

Percent Change - 42% - 59%

There is No Such Thing as a Safe Access.

NCHRP 420

As the number of access points per mile increase, so does the frequency of crashes.

And the rate also increases.

40 driveways per mile will increase crashes by 60% compared to 20 per mile.

Each access = 4%

Every Access Point is Fundamentally a Safety Problem Issuing an access permit is a decision to

diminish public safety and roadway function.

Photo by Dr. J. L. Gattis, U of Arkansas

Adopted from Elizabeth Alicandri and the Minnesota DOT

2-Lane Crossing 2-Lane

The center box is where serious injuries are most likely

32 total conflicts

Designing for Safety is About Limiting and Managing Vehicular Conflicts If you reduce the Rate at which a motorist encounters

conflicts you will reduce the Rate of crashes.

If you reduce the speed differential of crashes there will be fewer injuries.

Goal of Access Management Separate turning vehicles from through traffic

- Provide left and right turn lanes

Goal of Access Management Limit access conflicts and severe types

Source: Florida DOT

Decreasing crash rates by adding medians

Local safe streets, connecting friends, safe routes to schools, sidewalks, bicycle routes

No homes with direct driveways to an arterial, or even a collector

22

AM on Arterials is All about Local Street Networks

Open 4 leg intersection

Graphic from Teachamerica and Florida DOT

22 crossing conflicts “kill zone”

8 merging

8 diverging

24 angle conflicts for 2 lane RBTs 8 angle conflicts for single lane RBTs The “Kill Zone” crossing conflicts are gone

Roundabouts have No Crossing Conflicts

Safer residential access

Goal of Access Management

Demosthenes

Keep private access off arterials

Goal of Access Management

Hierarchical Network is an Access Management Strategy

Planning decisions determine access need,

location, frequency, type and traffic volume -

thereby establishing roadway conflict rates.

Land use planning and project design decisions do establish long term crash rates

SR 109 Access Management Scope of Services

Study Area

Study Goals and Objectives

Develop an Access Management Plan that establishes standards and policies for the location, spacing, design and operation of: Driveways Street connections Median openings Traffic signals Interchanges

Study OutcomesAccess Management Plan

Corridor VisionAccess

CategoriesRecommended Improvements

Major Tasks and Task Leaders

Tasks 4 & 5Existing Guidelines and

Practices & Access Management Resource Kit

Task LeaderJohn Houghton, AICP

GS&P

Phil DemosthenesPD

Diane Regensburg, PEPatrick Leap, PEAndrew Gaskins

GS&P

David Coode, AICPChristopher Rhodes, PE

KHA

Nashville Area MPOMichael Skipper

Executive Director

Principal in ChargeMarshall Elizer, PE, PTOE

GS&P

Project ManagerJohn Houghton, AICP

GS&P

Task 2Public Outreach, Stakeholder,

and Media OutreachTask Leader

Lindsay Puckett, AICPGS&P

Kevin Tilbury, AICPCindy Frear

GS&P

Stephen Stansbery, AICPKHA

Sharon Younger, PhDYounger Associates

Task 3Technical Review and Analysis of Historic, Existing and Future

ConditionsTask Leader

Kevin Tilbury, AICPGS&P

Nithin Gomez, PEAndrew Gaskins

GS&P

Allison Fluitt, PE, AICPKHA

Project Steering Committee

TDOT Wilson CountyTDEC City of GallatinNashville MPO City of LebanonSumner County City of Portland

Task 7Final Documentation

Task LeaderLindsay Puckett, AICP

GS&P

Patrick Leap, PEAndrew Gaskins, AICP

GS&P

Phil DemosthenesPD

Allison Fluitt, PE, AICPStephen Stansbery, AICP

KHA

Tasks 6Corridor Specific Access

Management PlanTask Leader

Jay Bockisch, PE, PTOEGS&P

Patrick Leap, PEAndrew Gaskins

GS&P

Phil DemosthenesPD

Christopher Rhodes, PEStephen Stansbery, AICPTimothy White, PE, PTOE

KHA

Technical Approach

ACCESS MANAGEMEN

T PLAN

Project Management

Plan

Public, Stakeholder, and Media

Outreach Plan

Historical, Existing, and

Future Conditions

Existing Access

Management Guidelines

and Practices

Access Management Resource Kit

Final Documentatio

n

Project Work Flow

Public, Stakeholder & Media Outreach Plan

SR 109 Corridor Management Committee

Public Meetings

Elected Officials & Stakeholder

Group Meetings

Project Website & Social Media

News Media

Setting the Stage

Historical, Existing, & Future

Conditions

Existing Access

Management Guidelines &

Practices

Access Management Resource Kit

Setting the Stage

What are the opportunities and challenges in the corridor?

Goal Performance Measure Tool Benefit

Improve permitting process Average time Interagency protocol % Processing time reduction

Improve safety Driveway density Driveway consolidation % Crash reduction

Reduce motorist delay Intersection delay Optimize signal spacing Peak hour level-of-service

Support economic growth Average speed Raised median % Trade area increase

Setting the Stage

How is access managed in the corridor today?

Setting the Stage

What strategies and tools can we use to improve access management in the corridor?

Access Management Plan

Shared Vision for the Corridor

Access Categories

Recommended Improvements

Project Schedule

Task 1: Project Management Plan

Task 2: Publ ic, Stakeholder, and Media Outreach Plan

Task 3: Technica l Review & Analys is of His toric, Existing and Future Conditions

Task 4: Document & Assess Existing Access Management Guidel ines and Practices

Task 5: Develop Access Management Resource Ki t

Task 6: Develop Corridor Specifi c Access Management Plan

Task 7: Prepare Fina l Documentation & Electronic Fi les

Project Steering Committee Meetings Public Meetings

Major Deliverables

May MarchNov DecOct Jan Feb2014 2015

TaskAprilJune SeptAugJuly

0 0

0

Next Steps

Next 90 Days Develop and submit Project Management Plan

(Task 1) & Public Involvement Plan (Task 2)

Initiate Review & Analysis of Existing Conditions and Trends (Task 3)

Initiate Documentation & Assessment of Existing Access Management Practices (Task 4)

Initiate Development of Access Management Resource Kit (Task 5)

Convene Project Steering Committee Meeting #2