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TRANSPORTATION CONFORMITY EXPERIENCES IN THE DALLAS-FORT WORTH NONATTAINMENT AREA. Southern Transportation Air Quality Summit. Madhusudhan Venugopal North Central Texas Council of Governments. TRANSPORTATION CONFOMITY Overview. TRANSPORTATION CONFOMITY Overview. Background

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TRANSPORTATION CONFORMITY EXPERIENCES IN THE DALLAS-FORT WORTH NONATTAINMENT AREA

Southern Transportation

Air Quality Summit

Madhusudhan Venugopal

North Central Texas Council of Governments


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TRANSPORTATION CONFOMITY WORTH NONATTAINMENT AREAOverview

TRANSPORTATION CONFOMITYOverview

Background

State Implementation Plan (SIP)

Transportation Control Measures (TCM)

Modeling Parameters

Short and Long Range Plans

Regional Support

Current and Future Efforts


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BACKGROUND WORTH NONATTAINMENT AREACriteria Pollutants

Carbon Monoxide (CO)

Lead (Pb)

Nitrogen Oxides (NOx)

Ozone (O3)

Particulate Matter (PM10 & PM2.5)

Sulfur Dioxide (SO2)

Future ? CO2, NO2, Etc.


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BACKGROUND WORTH NONATTAINMENT AREAHistory of Federal Air Quality Standards


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BACKGROUND WORTH NONATTAINMENT AREA8-Hour Ozone Nonattainment Area


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BACKGROUND WORTH NONATTAINMENT AREAConformity Determination History


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STATE IMPLEMENTATION PLAN WORTH NONATTAINMENT AREA1999 Nitrogen Oxides (NOx) Emission Inventory

Area: 34 tons(4%)

Biogenic: 52 tons(6%)

Point: 150 tons(18%)

Non-Road Mobile: 148 tons(18%)

On-Road Mobile: 438 tons(54%)


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STATE IMPLEMENTATION PLAN WORTH NONATTAINMENT AREA2009 Nitrogen Oxides (NOx) Emission Inventory

Area: 44 tons

Point: 61 tons

(10%)

(13%)

Biogenic: 52 tons

(12%)

On-Road Mobile: 184

Non-Road Mobile: 107

tons (41%)

tons (24%)

Source: Texas Commission on Environmental Quality


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TRANSPORTATION CONTROL MEASURES WORTH NONATTAINMENT AREA8-Hour SIP


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TRANSPORTATION CONTROL MEASURES WORTH NONATTAINMENT AREAIdentifying TCMs

Initial Commitment Summary

Transportation Improvement Program Review/Survey

Coordination with Implementing Agencies

Double Check Database Information (i.e. TIPINS, Studies, Etc.)

Review Large Projects (for Grade Separations, Intersection Imp.)

Final Update of Commitment List

Substitute Problematic Projects

Forward Revised Commitment Summary to State and Federal Air Quality Conformity Partners


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TRANSPORTATION CONTROL MEASURES WORTH NONATTAINMENT AREAEnvironmental Speed Limits

Environmental Speed Limits (ESL) are a Control Strategy in the 1-Hour State Implementation Plan

All Speed Limits Continue to be an Indirect Strategy in the 8-Hour SIP and Transportation Conformity

Speed Increases Above 35 mph Increase NOx Emissions


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TRANSPORTATION CONTROL MEASURES WORTH NONATTAINMENT AREAEnvironmental Speed Limits

Implementing Agency to Notify NCTCOG

If an Environmental Speed Limit

  • NCTCOG to Identify Air Quality Impacts

  • Implementing Agency Identify Offset Emission Measures

  • If Impacts Are Greater Than Offsets, RTC Assistance

  • NCTCOG Initiate TCM Substitution Process

    If NOT An Environmental Speed Limit

  • NCTCOG Incorporate Into Subsequent Transportation Conformity Analysis

  • If Emissions Are Greater Than SIP Motor Vehicle Emissions Budgets, Re-Evaluate

  • Proceed with U.S. Department of Transportation Conformity Determination


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MODELING PARAMETERS WORTH NONATTAINMENT AREAFactors Affecting EF and VMT

Age Distribution

Diesel Fraction

Hourly VMT

Seasonal Adjustment Factors

Highway Performance Monitoring System (HPMS) Adjustment Factors

Non-Recurring Congestion Factor


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MODELING PARAMETERS WORTH NONATTAINMENT AREAConsensus

Identify Data Used to Develop Parameters

Collection of Latest Available Data

Interagency Consultation Review

Motor Vehicle Emission Budgets (MVEBs)

Documentation


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MODELING PARAMETERS WORTH NONATTAINMENT AREAHPMS Factor

40 CFR 93.122(b)-(3): “an HPMS adjustment factor may be developed to reconcile and calibrate the network-based travel model (e.g., TDM) estimates of VMT in the base year of its validation to the HPMS estimates for the same period”.

Traffic Counts Used For Validation in the Model

VMT Increase/Decrease Over Time

Need for a Model Adjustment Factor


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SHORT AND LONG RANGE PLANS WORTH NONATTAINMENT AREAProject Identification

Modeling and Non-Modeling Area

Project Staging Years

Consistency with MTP and TIP

Communication with State DOT’s and Cities

Non-Modeling Area Project Listing Through Meetings


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REGIONAL SUPPORT WORTH NONATTAINMENT AREAMSAT ANALYSIS


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REGIONAL SUPPORT WORTH NONATTAINMENT AREAMSATs: FHWA Recommended Five-Percent Volume Change


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REGIONAL SUPPORT WORTH NONATTAINMENT AREAMSATs: Emissions Analysis by TSZ


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CURRENT AND FUTURE EFFORTS WORTH NONATTAINMENT AREAIdeas

Visualization

Multi-Pollutant Approach

More Peer to Peer Communication

Streamlining Conformity Process

Web-Based Project Submission/Updates

Increased Communication with Cities on Project Status


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CURRENT AND FUTURE EFFORTS WORTH NONATTAINMENT AREAManagement and Operations


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CURRENT AND FUTURE EFFORTS WORTH NONATTAINMENT AREAManagement and Operations


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CURRENT AND FUTURE EFFORTS WORTH NONATTAINMENT AREAPublic Awareness Campaign Elements

Campaign Web site

www.airnorthtexas.org


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1-HOUR OZONE HISTORICAL TRENDS WORTH NONATTAINMENT AREA

DFW Nonattainment Area

Highest Number of Exceedances at any Given Monitor

Attainment Goal *

3- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Consecutive 3-Year Periods

* Attainment Goal - According to the US EPA National Ambient Air Quality Standards, attainment is reached when there are no more than 3 exceedances per monitor within a consecutive 3-year period. An exceedance occurs when the ozone concentration ≥ 125 parts per billion averaged over a one hour period.

** Not a full year of data. Current as of July 2009

Source: NCTCOG Transportation Dept


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HISTORICAL TRENDS FOR 8-HOUR OZONE STANDARD WORTH NONATTAINMENT AREA

DFW Nonattainment Area

Highest Average

at any Given Monitor (ppb)

- - - - - - - - - - - - - - - - - - - - - - - -

1997 Standard* < 85 ppb

Revised Standard = 75 ppb

- - - - - - - - - - - - - - - - - - - - - - - -

Consecutive 3-Year Periods

* 2010 Attainment Goal - According to the US EPA National Ambient Air Quality Standards, attainment is reached when, at each monitor, the three-year average of the annual fourth-highest daily maximum 8-hour average ozone concentration is less than 85 parts per billion (ppb).

Source: NCTCOG TR Dept


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TRANSPORTATION CONFORMITY WORTH NONATTAINMENT AREAContact Information

Madhusudhan Venugopal

Senior Transportation Planner

(817) 608-2333

[email protected]


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