Framework for Model Development General Model Design Highway Network/Traffic Analysis Zones (TAZs) Development of Synthetic Trip Tables Development of Freight Model Components Validation Procedures Model Application

More than 8,029 bridges in the state are owned and maintained by TDOT. They are inspected for safety every two years. TDOT maintains 1,073 miles of interstates and 13,077 miles of state roads. Due to an active construction program, Tennessee’s roads are consistently ranked in the top five in the nation.

There are 6 commercial service airports and an additional 78 general aviation airports in Tennessee. TDOT has involvement with the 6 commercial airports. The Memphis International Airport is home for FedEx and is the largest air cargo operation in the world. TDOT provides financial assistance for 24 public transit systems including large urban, small urban, rural and trolley. TDOT assistance extends to all 95 Counties.

Six Class I railroads operate in Tennessee. Nineteen Shortline railroads operate with total trackage of approximately 746 miles. The Mississippi River borders Tennessee, providing 1000 miles of navigable waterway from St. Louis to New Orleans and serves as a major corridor for barge commodities. The Tennessee and Cumberland Rivers add another 1200 miles of critical waterway.

Why Are We Doing a Plan? Create a process to evaluate, prioritize and deliver transportation projects in a financially responsible manner Cultivate an understanding of the state’s role in transportation among all people Involve all that are interested in decisions made about transportation Create a process to evaluate, prioritize and deliver transportation projects in a financially responsible manner Cultivate an understanding of the state’s role in transportation among all people Involve all that are interested in decisions made about transportation

Critical Trends Population Changes

Source: Tennessee Advisory Commission on Intergovernmental Relations and U.S. Census Bureau Approximately 20% over Age Projected Population Change in Tennessee

Critical Trends Population Changes Economic Issues

Transportation and the Economy Source: Bureau of Economic Analysis, Regional Economic Information System Database

Transportation and the Economy Tennessee Job Growth to 2013 Source: 2004 Economic Report to the Governor, Center for Business and Economic Research 2005 – 2013 Forecasted Compound Growth of 2% + Transportation MUST keep up, or economy will suffer

Critical Trends Population Changes Economic Issues Traffic Congestion

Source: 2002 TRIMS Data

Critical Trends Population Changes Economic Issues Traffic Congestion Truck Flows

Total Combined Truck Flows (1998) Source: U.S. DOT / FHWA 30% of traffic on rural interstates is trucks. 56% of trucks on the interstate is pass through.

Critical Trends Population Changes Economic Issues Traffic Congestion Truck Flows Environmental Concerns

Source: Tennessee Department of Environment and Conservation

Critical Trends Population Changes Economic Issues Traffic Congestion Truck Flows Environmental Concerns Available State Funds

(In Millions) 100% State Funding for the Road Program FY through FY Source: TDOT Less State Funding Results in Less Federal Matching Funds

Critical Trends Population Changes Economic Issues Traffic Congestion Truck Flows Environmental Concerns Available State Funds

The Plan Includes Rail Rail Transit Transit Ports & Waterways Ports & Waterways Aviation Aviation Pedestrians & Bicycles Pedestrians & Bicycles Highways and Interstates Highways and Interstates Rail Rail Transit Transit Ports & Waterways Ports & Waterways Aviation Aviation Pedestrians & Bicycles Pedestrians & Bicycles Highways and Interstates Highways and Interstates Multimodal Approach:

25 Year Vision 10 Year Program Project Selection Criteria 25 Year Vision 10 Year Program Project Selection Criteria Financial Plan, Strategic Investment, and Policies Financial Plan, Strategic Investment, and Policies Performance Measures & Indicators Performance Measures & Indicators The Planning Process Challenges & Opportunities Challenges & Opportunities Goals & Objectives Goals & Objectives Public Involvement

Statewide Steering Committee Regional Working Groups Public Meetings Statewide Steering Committee Regional Working Groups Public Meetings

Regional Workgroup Areas Public Involvement

Policy Summits and Legislative Briefings State Seminars Surrounding States Seminars Policy Summits and Legislative Briefings State Seminars Surrounding States Seminars

Public Involvement - Outreach Speakers Bureau Traveling Exhibit Web site Printed Products Media Kits/Releases Database/Notices Speakers Bureau Traveling Exhibit Web site Printed Products Media Kits/Releases Database/Notices

Public Involvement - Outreach What Happens to Comments?

Identify Challenges and Opportunities Population and Employment Forecasts Travel Demand Forecasts Modal Needs and Constraints Financial Trends Freight Community Visions Population and Employment Forecasts Travel Demand Forecasts Modal Needs and Constraints Financial Trends Freight Community Visions

Establish Goals and Objectives Taking Care of Basics Moving a Growing, Diverse and Dynamic Population Supporting the State’s Economy Improving Safety Building Communities Stewardship of the Environment Taking Care of Basics Moving a Growing, Diverse and Dynamic Population Supporting the State’s Economy Improving Safety Building Communities Stewardship of the Environment

Performance Based Approach Performance Measures System Performance Mobility Safety Geographic Equity Cost Effectiveness Environmental Impacts Community Support System Performance Mobility Safety Geographic Equity Cost Effectiveness Environmental Impacts Community Support Performance Indicators Quantity of Travel Quality of Travel Accessibility Utilization Quantity of Travel Quality of Travel Accessibility Utilization

Plan Schedule May 2004 Statewide Media Event July 2004 Base Network June 2004 Base Synthetic Trip Table August 2004 Freight Trip Table September 2004 Challenges & Opportunities and Goals, Objectives & Policies November 2004 Modal Needs and Performance Measures December 2004 Preliminary Project Selection Criteria March 2005 Financial Plan & Strategic Investments June 2005 Long-Range Transportation Plan January 2004 Project Initiated

Model Characteristics Address Major Corridor Movements Relatively Easy to Maintain and Update Uses Existing Data Resources Uses Existing Software for Application Links to Existing GIS Databases/Software Sensitive to Shifts in Socioeconomic/Land Use Patterns Assess Impacts of Shifts in Travel Modes Assess Freight Movements Address Major Corridor Movements Relatively Easy to Maintain and Update Uses Existing Data Resources Uses Existing Software for Application Links to Existing GIS Databases/Software Sensitive to Shifts in Socioeconomic/Land Use Patterns Assess Impacts of Shifts in Travel Modes Assess Freight Movements

Potential Methodologies Traditional Four Step TDM Procedures Trip Generation Trip Distribution Mode Choice Traffic Assignment Trip Table Expansion (FRATAR) Preparation of Base Trip Table(s) Development of Expansion Factors Traditional Four Step TDM Procedures Trip Generation Trip Distribution Mode Choice Traffic Assignment Trip Table Expansion (FRATAR) Preparation of Base Trip Table(s) Development of Expansion Factors

Steps In Model Development Development of Highway Network & TAZs Selection of Detail for Highway Network Definition of TAZs TAZ/Network Compatibility Synthetic Matrix Estimation (SME) Development of Seed Matrices Matrix Estimation Traffic Assignment Development of Highway Network & TAZs Selection of Detail for Highway Network Definition of TAZs TAZ/Network Compatibility Synthetic Matrix Estimation (SME) Development of Seed Matrices Matrix Estimation Traffic Assignment

Network/TAZ Compatibility

Network/TAZ Definition Incorporate All Roadways in TRIMS 1,000 Miles of Interstate/Freeways 5,000 Miles of Principal Arterials 6,000 Miles of Other Subset of TRIMS Interstate and Freeways Principal Arterials Incorporate All Roadways in TRIMS 1,000 Miles of Interstate/Freeways 5,000 Miles of Principal Arterials 6,000 Miles of Other Subset of TRIMS Interstate and Freeways Principal Arterials

TDOT TRIMS Region 1 Region 2 Region 2 Region 3 Region 4 Rural Interstate Rural Principal Arterial Rural Minor Arterial Rural Local Urban Interstate Urban Freeway/Expressway Urban Principal Arterial Urban Minor Arterial LEGEND:

TDOT Region 1 - TRIMS

TDOT Region 2 - TRIMS

TDOT Region 3 - TRIMS

TDOT Region 4 - TRIMS

TRIMS Database

TDOT Region 1 – TRIMS With Census Tracts Census Tracts

TDOT Region 2 – TRIMS With Census Tracts Census Tracts

TDOT Region 3 – TRIMS With Census Tracts Census Tracts

TDOT Region 4 – TRIMS With Census Tracts Census Tracts

TDOT Region 1 – Model Network

TDOT Region 2 – Model Network

TDOT Region 3 – Model Network

TDOT Region 4 – Model Network

TRIMS/Model Comparison

National Network

TDOT Region 3 – Model Network With Census Tracts 2000 Census Tracts

REGION 1 TAZs TAZ Boundary

REGION 2 TAZs TAZ Boundary

REGION 3 TAZs TAZ Boundary

REGION 4 TAZs TAZ Boundary

REGION 1 Grid TAZ Boundary

REGION 2 Grid TAZ Boundary

REGION 4 Grid TAZ Boundary

REGION 3 Grid TAZ Boundary