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Noise/Air Quality Update Consultant Update Meeting September 16, 2010


Title: Noise/Air Update 12/3/09 DEC Meeting Author: nalcala Last modified by: kgoodwin Created Date: 11/24/2009 6:16:54 PM Document presentation format – PowerPoint PPT presentation

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Title: Noise/Air Quality Update Consultant Update Meeting September 16, 2010

Noise/Air Quality Update Consultant Update
Meeting September 16, 2010
  • PM2.5 and MSAT Update
  • 23CFR772 Final Rule Update (Procedures for
    Abatement of Highway Traffic Noise)
  • ODOTs Noise Standard Procedure Update (February

Air Quality- PM2.5 Update
  • PM2.5 Hotspot Analysis now required for
    Non-exempt projects with ADTgt125,000 AND 8
    diesels (was gt87,500 ADT AND 7,000 diesels)-
    based on USEPA guidance (see PM2.5 flow chart
  • Projects not exempt under 40CFR93.126 but do not
    require a hotspot analysis- PM2.5 Conformity
    Determination approval letter required from FHWA.
    Coordination with USEPA and OEPA required prior
    to FHWA.
  • MOVES2010 approved for regional air quality
    analysis- Required by March 2012
  • MOVES2010 for project level hotspot analysis?
    With 2-yr grace period, required Fall 2012??

Air Quality- MSAT Update
  • FHWA 9/30/09 MSAT Memorandum
  • Projects NEPA exempt, CE1, exempt under
    40CFR93.126, or projects with no meaningful
    impacts on traffic volumes or veh mix- no MSAT
    analysis required
  • Projects that add capac, add a new interchange,
    new road on new alignment, or improvement or
    expansion to intermodal center or other projects
    that affect truck traffic- MSAT analysis required

Air Quality
  • All environmental documents must address CO,
    Ozone, MSAT, and PM.

Final Updates to 23CFR772
  • New 23CFR772 Effective July 13, 2011
  • Grandfathered projects?- proceed with caution
    (err on the side of the noise receptor)
  • ODOT Noise Standard Procedure will need to be
  • Noise reevaluations?

Final Updates to 23CFR772
Final Updates to 23CFR772
  • Category F- no analysis required
  • Category G- undeveloped land not
  • Interior use eliminated for residential, hotels,
  • Added interior use for daycares, medical
    facilities, radio/recording/tv studios
  • Added exterior use for amphitheaters,
    auditoriums, campgrounds, cemetaries, daycares,
    medical facilities, public meeting rooms, public
    or non-profit institutional structures,
    radio/recording/tv studios, Section 4f sites,
    trails, trail crossings, offices, restaurants/bars

Final Updates to 23CFR772
  • Use of TNM Lookup Tables eliminated for federally
    funded highway projects (Eff 7/13/10)
  • A benefitted receiver will be one that has a gt 5
    decibel reduction (not gt3 decibel)
  • Type I projects added (noise analysis required)
  • Substantial horizontal alteration- halving the
    existing distance between source and receiver
  • Addition of an auxiliary lane except for when it
    is a turn lane
  • Restriping existing pavement for an added thru or
    auxiliary lane
  • Addition of weigh station ,rest stop, ride share
    lot, or toll plaza

Final Updates to 23CFR772
  • Use of noise contour lines acceptable for Noise
    Screenings and land use planning
  • DOT must solicit the viewpoints from all
    benefited property owners and residents.
  • Multi family dwelling with common use exterior
  • Noise model validation clarification (compare
    noise rdg to modeled traffic cts)
  • OES will update ODOT Noise Standard Procedure
    accordingly. Will submit to FHWA by 1/13/11 for
    review. Must be approved by 7/13/11

ODOT Noise Standard Procedure updates (February
  • 500' is the distance to consider noise sensitive
    areas from the project area (was 600)
  • Requiring aerial photos with project plan overlay
    in noise reports
  • Line of sight check required for first row
    receivers, not all receivers

ODOT Noise Standard Procedure updates (February
  • The number of required noise readings were
    reduced (max of 2 in front row and 1 in second
  • Noise readings are not required for a Final Noise
    Analysis (unless noise env changed)
  • The Final Noise Analysis will include barrier
    design information such as top of wall
    elevations, bottom of wall elevations, distance
    offset from roadway centerline, barrier heights,
    and wall stationing every 100'.
  • Max noise wall ht is 25 (typo corrected)

ODOT Noise Standard Procedure updates (February
  • Transparent noise barriers that qualify for
    federal funding must be approved by the OES
    Administrator and Deputy Director of the Division
    of Transportation Systems Development, Central
  • Noise public involvement is typically conducted
    after the Preliminary Noise Analysis or Final
    Noise Analysis is prepared and approved.
  • For impacted receptors, added privacy fencing
    alternative in addition to vegetation

ODOT Noise Standard Procedure updates (February
  • A majority (51 or greater) of front row
    receivers desiring the noise wall should be
    achieved for the abatement to be constructed.
  • A low response rate (lt35) from the adjacent
    property owners is considered to demonstrate a
    lack of interest in getting noise abatement and
    may result in no noise abatement for the area.

ODOT Noise Standard Procedure updates (February
  • If a low response rate is received from the first
    mailed noise survey, a resurvey should be
  • Property owners will have a deciding viewpoint
    for or against a noise wall (not rentors).
    (future ODOT policy- needs FHWA approval)
  • The results of the noise public involvement
    (Noise PI Summary) must be reviewed and written
    recommendations made by the project team on
    whether or not to construct the noise wall(s),
    prior to any design activity.

Noise Analysis reporting requirements
  • Be sure to coordinate noise measurement plan with
    OES prior to fieldwork
  • Be sure to include CD with TNM files and report
  • Be sure include hard copies of TNM plan views,
    roadway/traffic/receiver/barrier inputs, sound
    level output, barrier descriptions output

TNM 3.0 Update
  • Beta testing in mid 2011
  • Optional use after modifications made from the
  • Required for use after 23CFR772 is modified
  • Future NHI TNM 3.0 course
  • Tire/Pavement Noise Update
  • National Research ongoing
  • Future goal is to incorporate pavement type into
    TNM software

Questions, comments, concerns?- Contact
  • Noel Alcala, Noise and Air Quality Coordinator,
  • http//