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  • TABLE OF CONTENTS
  • INTRODUCTION
  • SURVEY
    • DEMOGRAPHICS
      • AGE
      • EDUCATION
      • EMPLOYMENT
      • HOUSING TYPE
      • INCOME
      • NEIGHBORHOOD
      • SEX
      • RACE
      • RESIDENCY
    • PERCEPTIONS
      • SOUND SENSITIVITY
      • DETERMINANTS OF ANNOYANCE
      • TEMPORALITY
      • PERCEPTIONS BY NEIGHBORHOOD
      • WORKPLACE PERCEPTION
    • NOISE COMPLAINTS
      • TEMPORALITY OVERALL
      • TIME OF DAY
      • DAY OF WEEK
      • MONTH
      • TEMPORALITY BY TYPE OF COMPLAINT
      • TIME OF DAY
      • DAY OF WEEK
      • MONTH
      • NEIGHBORHOOD
      • TIME OF DAY
      • DAY OF WEEK
      • TYPE
    • HEALTH IMPACTS
      • PHYSICAL
      • MENTAL HEALTH
      • SLEEP & RELAXATION
    • NOISE ABATEMENT
    • ADVOCACY STRATEGIES
  • SOUND MAPPING
    • SOUND LEVEL MAPS
      • A-WEIGHTED SOUND LEVELS (dBA)
      • DAY
      • NIGHT
      • UNWEIGHTED SOUND LEVELS (dB)
      • DAY
      • NIGHT
      • UNWEIGHTED – A – WEIGHTED SOUND
      • DAY
      • NIGHT
    • SOUND PERCEPTION MAPS
      • AIRCRAFT ANNOYANCE LEVELS
      • HORNS ANNOYANCE LEVELS
      • LEAF BLOWER ANNOYANCE LEVELS
      • NEIGHBORHOOD SOUND ANNOYANCE LEVELS
      • NOISE COMPLAINT HEAT MAP
      • SOUND SENSITIVITY
      • ROAD TRAFFIC ANNOYANCE LEVELS
      • STREET ANNOYANCE LEVELS
      • TRAIN ANNOYANCE LEVELS
    • HEALTH OUTCOMES MAPS
      • SELF-REPORTED
      • OVERALL HEALTH STATUS
      • HOURS OF SLEEP
  • SOUNDSCAPES
    • COMMUNITY SOUND PORTRAITS
    • URBAN SOUND BITES
  • REPORT CARD
    • GRADING METHODOLOGY
    • REPORT CARDS LIST
  • ABOUT
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    • OUR 2020 SURVEY
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A-weighted Sound Levels (dBA)

Day

Night

Unweighted Sound Levels (dB)

Day

Night

Unweighted – A-weighted Sound

Day

Night

SOUND LEVEL MAPS

http://boston.noiseandthecity.org/wp-content/uploads/2016/08/MAPS-YELLOW.mp4

This portion of the report contains interactive and static, downloadable maps of sound levels, based off of sound data collected during a year-long monitoring campaign. We measured sound at 400 sites around the City of Boston, at various times of day and various days of week. The maps found within this section of the report are based on three different sound metrics:

  • A-weighted decibel (dBA): This metric is most typically used when monitoring and describing environmental sound. The A-weighted decibel discounts both lower and higher frequencies as the ear is less sensitive to these frequencies. We map the dBA during the daytime and nighttime for both the weekday and weekend.
  • The Un-weighted decibel (dB): This metric describes the true sound level. The un-weighted decibel does not penalize any of the frequencies and makes no assumptions about what the human ear can perceive. We map the unweighted dB during the daytime and nighttime for both the weekday and weekend.
  • The difference between Un-weighted and A-weighted sound: This metric describes what the A-weighted sound level casts off. We theorize that in areas where the difference is greater may include areas with higher levels of either low or high frequency based sound. We this difference during the daytime and nighttime for both the weekday and weekend.

Share our findings!

THE 2016 GREATER BOSTON NOISE REPORT BY WWW.NOISEANDTHECITY.ORG I   ERICA WALKER  I  JULIO CÉSAR ROMÁN  I  MARCOS LUNA

INTRODUCTION


INTRODUCTION


SURVEY


DEMOGRAPHICS


PERCEPTIONS


NOISE COMPLAINTS


HEALTH IMPACTS


NOISE ABATEMENT


ADVOCACY STRATEGIES


SOUND MAPPING 


SOUND LEVEL MAPS


SOUND PERCEPTIONS


HEALTH OUTCOME MAPS


SOUNDSCAPES


COMMUNITY SOUND BITES


URBAN SOUND BITES


REPORT CARDS


GRADING METHODOLOGY


REPORT CARD LIST


ABOUT


OUR METHODOLOGY


OUR THANKS


OUR Q & A


OUR FUN FACTS


OUR COMMUNITY COMMENTS


OUR 2020 SURVEY


OUR EMAIL


OUR TEAM


OUR PRESS KIT


OUR TABLE OF CONTENT


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