Noise Analysis Study SEPTEMBER 13, 2013 Circle Interchange (P-91-259-12) Final Noise Analysis Study
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Noise Analysis Study SEPTEMBER 13, 2013 Circle Interchange (P-91-259-12) Final Noise Analysis Study TABLE OF CONTENTS 1. INTRODUCTION ................................................................................................................................................... 1 1.1. Project Description ....................................................................................................................................... 1 1.2. Existing Land Use ......................................................................................................................................... 1 2. NOISE BACKGROUND AND REGULATIONS ..................................................................................................... 2 2.1. Noise Background ........................................................................................................................................ 2 2.2. Federal Regulations ..................................................................................................................................... 2 2.3. State Regulations ......................................................................................................................................... 3 3. NOISE RECEPTOR SELECTION ......................................................................................................................... 4 4. NOISE MONITORING ......................................................................................................................................... 10 4.1. Field Noise Measurement Methodology ..................................................................................................... 10 4.2. Monitoring Results ...................................................................................................................................... 10 5. NOISE ANALYSIS METHODOLOGY ................................................................................................................. 12 5.1. Traffic Noise Model (TNM).......................................................................................................................... 12 5.2. Traffic Volumes, Composition, and Speeds ................................................................................................ 12 5.3. Project Setting and Noise Propagation Environment .................................................................................. 12 5.4. TNM Model (Validation) .............................................................................................................................. 13 6. TNM RESULTS ................................................................................................................................................... 14 6.1. Existing Year 2012 ..................................................................................................................................... 17 6.2. No-Build 2040 ............................................................................................................................................. 18 6.3. Proposed Build 2040 .................................................................................................................................. 18 7. ABATEMENT ANALYSIS .................................................................................................................................... 19 7.1. Noise Barrier Analyses ............................................................................................................................... 19 7.2. Noise Reduction Design Goal Reasonability and Feasibility ...................................................................... 19 7.3. Economic Reasonability ............................................................................................................................. 22 7.4. Viewpoint Solicitation and Tally of Benefitted Noise Receptors.................................................................. 28 7.5. Likelihood Statement .................................................................................................................................. 29 7.6. Coordination with Local Government Officials for Undeveloped Lands ...................................................... 29 8. CONSTRUCTION NOISE AND VIBRATION ...................................................................................................... 31 8.1. Construction Noise ..................................................................................................................................... 31 8.2. Construction Vibration ................................................................................................................................ 32 9. REFERENCES .................................................................................................................................................... 34 September 13, 2013 i Circle Interchange (P-91-259-12) Final Noise Analysis Study APPENDICIES Appendix A Figures and Exhibits Appendix B Traffic Data Appendix C Field Noise Measurements & Data Sheets Appendix D Traffic Noise Model (TNM) Validation Appendix E Public Involvement September 13, 2013 ii Circle Interchange (P-91-259-12) Final Noise Analysis Study 1. INTRODUCTION 1.1. Project Description The I-90/94 at I-290 Circle Interchange is located in downtown Chicago, adjacent to the west end of the central business district (see Figure A.1). The Circle Interchange is highly congested and operates in breakdown conditions for most of the day. The Illinois Department of Transportation (IDOT) proposes the rehabilitation of the Circle Interchange. The purposes of the proposed project are to improve safety, reduce congestion, and address the aging facility conditions. The Circle Interchange was built in the late 1950s and early 1960s. The Circle Interchange links the Dan Ryan Expressway (I-90/94) to the south, the Kennedy Expressway (I-90/94) to the north, the Eisenhower Expressway (I-290) to the west, and Congress Parkway to the east. Local traffic reporters commonly refer to this interchange as the "Circle" because from above, the curving ramps appear to form concentric rings. The study area for the Noise Analysis is shown on Figure A.1 of Appendix A. The study area termini are Lake Street to the north, Loomis Street to the west, Roosevelt Road to the south, and Canal Street to the east. 1.2. Existing Land Use The Circle Interchange is located in a highly developed urban area of downtown Chicago. The surrounding land uses are a mixture of residential, commercial, industrial, and institutional uses. The residences are multi-story, multi-unit buildings that are often ”zero-setback buildings” and directly overlook the freeways. The University of Illinois at Chicago (UIC) is situated in the southwest quadrant of the Circle Interchange. UIC uses within 500 feet of the Circle Interchange include indoor and outdoor recreation facilities, open space, residence halls, parking structures, and the UIC Pavilion. The Greektown neighborhood is located in the northwest quadrant of the Circle Interchange. Greektown uses include multi-story residences, offices, restaurants, retail, and the National Hellenic Museum. To the northeast of the Circle Interchange are multi-story residences, offices, retail, restaurants, and the Old St. Patrick’s Church. St. Patrick’s consists of a school, outdoor playground, rectory, and the Old St. Patrick’s Church that is listed on the National Register of Historic Places. The southeast quadrant of the Circle Interchange is mostly light industrial, along with multi-story residences facing Congress Parkway. The Maxwell Street Market is an outdoor market held every Sunday, and is located on Des Plaines Street between Roosevelt Road and Harrison Street. Des Plaines Street is closed during the street market. September 13, 2013 1 Circle Interchange (P-91-259-12) Final Noise Analysis Study 2. NOISE BACKGROUND AND REGULATIONS 2.1. Noise Background Noise is defined as unwanted sound, which is produced by the vibration of sound pressure waves. Sound pressure levels are used to measure the intensity of sound and are described in terms of decibels (dB). Decibels are a logarithmic unit, which expresses the ratio of sound pressure level to a standard reference scale. The decibel scale has an audible range of 0 to 120 and is used to show the amount of sound pressure at a given location from the general environment of specific sources. Sound is composed of various frequencies that are measured in cycles per second or Hertz (Hz). The human ear can detect a wide range of frequencies from 20 to 20,000 Hz, but is most sensitive to sounds over a frequency range of 200 to 5,000 Hz. The human ear does not respond in a uniform manner to different frequency sounds. A sound pressure level of 70 dB will be perceived as much louder at 1,000 Hz than at 100 Hz. To account for this, various weighting methods have been developed to reflect human sensitivity to noise. The purpose of a weighting method is to de-emphasize the frequency ranges in which the human ear is less sensitive. The most commonly used measure of noise level is the A-weighted sound level (dB(A)). The dB(A) sound level is widely used for transportation-related noise measurements and specifications for community noise ordinances and standards. The dB(A) has been shown to be highly correlated to human response to noise. Because of the logarithmic decibel scale, a doubling of the number of sources, such as the number of vehicles on a roadway, increases