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PM3: System Performance, Freight, and CMAQ

System Performance, Freight, and CMAQ

System Performance, Freight, and CMAQ

 

FHWA published the System Performance/Freight/CMAQ Performance Measures Final Rule on January 18, 2017, with an effective date of May 20, 2017. It assesses the performance of the Interstate and non-Interstate National Highway System (NHS) for the purpose of carrying out the National Highway Performance Program (NHPP); assesses freight movement on the Interstate System; and assesses traffic congestion and on-road mobile source emissions for the purpose of carrying out the Congestion Mitigation and Air Quality Improvement (CMAQ) Program.

State DOTs were required to set targets by May 20, 2018, and MPOs have until November 16, 2018 (except for Traffic Congestion) to report their targets. For the target setting process, to the maximum extent practicable, the MPO and State DOTs must coordinate in the selection of performance targets. 

A requirement of the CMAQ Performance Measures (Traffic Congestion & Total Emissions Reductions) is the development of a CMAQ Performance Plan (CPP) to be updated biennally. The CPP includes a baseline level for traffic congestion and emissions, a description of the progress made in achieving performance measure targets, and a description of projects funded through the CMAQ program & their potential impact on achieving the targets.

CMAQ Performance Plan: Baseline Performance Period

Traffic Congestion

This subpart is applicable to all urbanized areas that include National Highway System (NHS) mileage and have a population over 1 million that are, in all or part, designated as nonattainment or maintenance areas for Ozone (O3), Carbon Monoxide (CO), or Particulate Matter (PM10 and PM2.5) per National Ambient Air Quality Standards (NAAQS).

As the Memphis Urbanized Area, which covers parts of Tennessee, Mississippi, and Arkansas, including the Planning Areas of the Memphis Urban Area Metropolitan Planning Organization (MPO) and West Memphis MPO, meets the threshold set, the following performance measures applied to the Memphis, TN-MS-AR Urbanized Area:

  • Annual hours of peak hour excessive delay per capita
  • Percentage of non-single occupancy vehicle travel

On April 19, 2018, the Transportation Planning Board (TPB) of the Memphis Urban Area MPO approved a resolution to support the single, unified targets for the Tri-State Urbanized Area, which are shown in the table below:

TRAFFIC CONGESTION PERFORMANCE MEASURES
MEMPHIS, TN-MS-AR URBANIZED AREA
BASELINE (2017)
2-YEAR TARGET (2019)
4-YEAR TARGET (2021)
PERCENTAGE OF NON-SINGLE OCCUPANCY VEHICLE TRAVEL
16.6%
16.5%
16.5%
ANNUAL HOURS OF PEAK-HOUR EXCESSIVE DELAY
NOT APPLICABLE
NOT APPLICABLE
18.81

Additional Resources

Resolution to Support the Tri-State CMAQ Performance Measure Targets Covering the Memphis, TN-MS-AR Urbanized Area 

Memphis MPO CMAQ Performance Measures Presentation

University of Tennessee PHED Analysis Presentation

PHED PM Fact Sheet

Non-SOV PM Fact Sheet

Total Emissions Reduction

This performance measure is only applicable to areas that include any part of a nonattainment or maintenance area for Ozone (O3), Carbon Monoxide (CO), or Particulate Matter (PM10 and PM2.5) per National Ambient Air Quality Standards (NAAQS). This measure is limited to these areas to further the CMAQ’s program purpose of funding programs and projects that seek to satisfy the NAAQS. If an MPO has a population of greater than 1 million, and is designated as a nonattainment and maintenance area, then both 2 and 4-year targets are required. If the population is less than 1 million, then only a 4-year target is required.

As the Memphis MPO has a population greater than 1 million and is designated as nonattainment/ maintenance for Ozone (O3) and Carbon Monoxide (CO), performance targets for this measure must be established. MPO’s have the option of either supporting the State DOT target, or choosing their own. MPOs have 180 days of the State’s selection to report their targets. 

  • Total emissions reductions by applicable pollutants under the CMAQ program

On November 15, 2018, the Transportation Policy Board (TPB) of the Memphis MPO approved a resolution to support each individual state's emissions reduction targets, which are shown in the table below:

CONGESTION MITIGATION AND AIR QUALITY PERFORMANCE MEASURES TENNESSEE (TDOT) MISSISSIPPI (MDOT)
BASELINE (FY 2014-17) 2-YEAR TARGET (FY 2018-19) 4-YEAR TARGET (FY 2018-21) BASELINE (FY 2014-17) 2-YEAR TARGET (FY 2018-19) 4-YEAR TARGET (FY 2018-21)
TOTAL EMISSIONS REDUCTIONS (VOC) KG/DAY 230.025 30.698 61.396 28.000 >0 >0
TOTAL EMISSIONS REDUCTIONS (CO) KG/DAY 530.282 75.000 150.000 NOT APPLICABLE NOT APPLICABLE NOT APPLICABLE
TOTAL EMISSIONS REDUCTIONS (NOx) KG/DAY 363.399 62.840 125.680 85.000 >0 >0

Travel Time Reliability

State DOTs and MPOs are charged with reporting the measurement of travel time reliability on the Interstate and/or non-Interstate NHS. State DOTs are required to set 2-year and 4-year targets, while MPOs only have to set 4-year targets. For each of the below performance measures, MPOs can agree to support the State DOT target, or establish their own target specific to the MPO planning area:

  • Percent of the Person-Miles Traveled on the Interstate that are reliable
  • Percent of the Person Miles Traveled on the Non-Interstate National Highway System that are reliable

On November 15, 2018, the Transportation Policy Board (TPB) of the Memphis MPO approved a resolution to support each individual state's travel time reliability targets, which are shown in the table below:

TRAVEL TIME RELIABILITY PERFORMANCE MEASURES TENNESSEE (TDOT) MISSISSIPPI (MDOT)
BASELINE (2017) 4-YEAR TARGET (2021) BASELINE (2017) 4-YEAR TARGET (2021)
PERCENTAGE OF PERSON MILES TRAVELED THAT ARE RELIABLE (INTERSTATE) 87.7% 83.0% 99.3% 90.0%
PERCENTAGE OF PERSON MILES TRAVELED THAT ARE RELIABLE (NON-INTERSTATE NHS) NOT APPLICABLE 87.5% NOT APPLICABLE 85.0%

Freight Movement

The Moving Ahead for Progress in the 21st Century Act (MAP-21), and continued with the Fixing America’s Surface Transportation (FAST) Act, required a separate measure to provide data regarding freight reliability. This differs from the Travel Time Reliability measure and it is broken down into five periods: morning peak, midday, and afternoon peak Monday – Friday, weekends and overnight for each day. 

Similar to performance measures for Emissions Reduction and Travel Time Reliability, State DOTs are required to set 2-year and 4-year targets for Freight Movement, while MPOs only need to set 4-year targets. For the below performance measures, MPOs can agree to support the State DOT target, or establish their own target specific to the MPO planning area:

  • Percentage of Interstate System mileage providing reliable truck travel time

On November 15, 2018, the Transportation Policy Board (TPB) of the Memphis MPO approved a resolution to support each individual state's freight movement targets, which are shown in the table below:

FREIGHT MOVEMENT PERFORMANCE MEASURES TENNESSEE (TDOT) MISSISSIPPI (MDOT)
BASELINE (2017) 4-YEAR TARGET (2021) BASELINE 2017) 4-YEAR TARGET (2021)
TRUCK TRAVEL TIME RELIABILITY (TTTR) INDEX 1.35 1.33 1.13 1.50

By agreeing to support the states’ (Mississippi and Tennessee) System Performance, Freight, and CMAQ targets, the Memphis MPO agrees to:

  • Work with the states and relevant stakeholders to address areas of concern related to travel reliability, freight movement, traffic congestion, and emissions reduction within the metropolitan planning area
  • Coordinate with the states and include the system performance, freight, and CMAQ targets for those measures in the long-range regional transportation plan (RTP)
  • Integrate into the metropolitan transportation planning process, the system performance, freight, and CMAQ goals, objectives, performance measures and targets described in other state transportation plans and processes
  • Include a description in the TIP (Transportation Improvement Program) of the anticipated effect of the TIP toward achieving system performance, freight, and CMAQ targets in the RTP, linking investment priorities in the TIP to those targets

Additional Resources

Resolution to Support the System Performance Measure Targets for the State of Tennessee and the State of Mississippi

Memphis MPO Performance Measures Presentation (Online Workshop 2018)

On-Road Mobile Source Emissions PM Fact Sheet

Travel Time Reliability PM Fact Sheet

Freight Reliability PM Fact Sheet

 

 

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