PennDOTDistrict 8 I-83 East Shore Section 1 Improvements Project. Final Design Noise Analysis & Mitigation Recommendations

Transcription

1 PennDOTDistrict 8 I-83 East Shore Section 1 Improvements Project Final Design Noise Analysis & Mitigation Recommendations

2 Open House Formal Presentation Project Overview/Schedule Definitions of Common Noise Terms Noise Analysis Process Question and Answer Analysis Results (small groups)

3 Elmerton Avenue bridge replacement and widening of Valley Road bridges. Union Deposit bridge will be replaced and widened. I-83 improvements from north of Peiffers Lane to I-81. Reconstructing and widening of I-83 from 4 to 6 lanes and auxiliary lanes. Route 22 interchange reconstruction. Reconstruction and widening of Route 22 between South Franklin Street and Colonial Road.

4 Contract 1: Elmerton Avenue, Route 22, and Union Deposit Road Bridge Replacements. Route 22 Corridor and Interchange Reconfiguration. Begin Right-of-Way Acquisition - Contract Fall 2014 Complete Right-of-Way Acquisition - Contract 1 Late 2015 Begin Construction - Contract 1 Mid 2016 Complete Construction - Contract 1 Summer 2018 Task Completed

5 Contract 2: I-83 Mainline Widening and Reconstruction. Locust Lane, Megoulas Boulevard and Londonderry Road Bridge Replacements. Retaining Wall and Sound Barrier Construction. Union Deposit Road Sidewalk and Interchange Ramp Work. Begin Right-of-Way Acquisition - Contract 2 Late Summer 2015 Community Sound Barrier Meetings Fall 2015 Complete Right-of-Way Acquisition - Contract 2 Late 2017 Begin Construction - Contract 2 Fall 2018 Noise Wall Construction Fall 2020 Complete Construction - Contract 2 Fall 2021

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7 Definition of common terms Noise monitoring specifics Discussion of project specific noise levels Discussion of noise barrier and aesthetic options Overview of noise barrier voting process Q & A

8 Sensitive Receptor (receiver): Any land use that is sensitive to noise, such as a residence, schools, parks, hotels, and athletic fields. A-Weighted Sound Level (dba): The sound levels in decibels from the entire sound level spectrum focusing on those that are more easily distinguishable by the human ear. Leq.(h): The average sound level for an hour.

9 Noise Abatement Criteria (NAC): Noise levels for various land uses which represent the upper limit of acceptable traffic noise level conditions. The NAC for residential land uses (Category B) is a noise level that approaches or exceeds 67 dba, or substantially exceeds existing noise levels by 10 dba. Worst-Case Hour: A period of (60) minutes throughout a 24-hour day that reflects the peak noise hour, usually within the peak traffic hours.

10 Hourly A-Weighted Sound Level in Decibels (dba) Activity Category A L eq (h) 1 57 (Exterior) B 2 67 (Exterior) C 2 67 (Exterior) D 52 (Exterior) E 2 72 (Exterior) Evaluation Location Exterior Exterior Exterior Interior Exterior F -- Exterior G Description of Activity Category Lands on which serenity and quiet are of extraordinary significance and serve an important public need and where the preservation of those qualities is essential if the area is to continue to serve its intended purpose. Residential. Active sport areas, amphitheaters, auditoriums, campgrounds, cemeteries, day care centers, hospitals, libraries, medical facilities, parks, picnic areas, places of worship, public meeting rooms, public or non-profit institutional structures, radio studios, recording studios, recreation areas, Section 4(f) sites, schools, television studios, trails, and trail crossings. Auditoriums, day care centers, hospitals, libraries, medical facilities, places of worship, public meeting rooms, public or non-profit institutional structures, radio studios, recording studios, schools, and television studios. Hotels, motels, offices, restaurants/bars, and other developed lands, properties of activities not included in A-D or F. Agriculture, airports, bus yards, emergency services, industrial logging, maintenance facilities, manufacturing, mining, rail yards, retail facilities, shipyards, utilities (water resources, water treatment, electrical), and warehousing Undeveloped lands that are not permitted. Source: 23 CFR 772

11 A. Noise levels are measured at areas of frequent outdoor activity, such as back yards, playgrounds and patios. Monitoring of existing conditions is used to establish existing noise levels within the project area. Existing background noise levels are used to calibrate the noise model with observed traffic. B. 24-hour measurements are used to determine the loudest hour(s) of a typical day and to evaluate nighttime noise levels. C. 10-minute measurements at various locations are collected within the worst-case hours (usually between 6-9AM and 3-6PM).

12 Traffic Noise Model (TNM) 2.5 Input Parameters Existing and proposed roadway alignments Location and elevation data Existing and proposed traffic data (i.e., speeds, volumes, composition) Noise sensitive receptors Location and elevation Terrain features Characteristics of how noise travels through the air Proposed noise barriers Modeling Performed for Existing and Future Conditions

13 PennDOT has instituted a three-phased approach to noise abatement: Phase 1: Warrants Phase 2: Feasibility Phase 3: Reasonableness Where the analysis determines that noise abatement is warranted (Phase 1), then feasibility (Phase 2) and reasonableness (Phase 3) are considered.

14 Warrants: Noise abatement measures (barriers) were analyzed for new or expanded roadways if predicted future Leq(h) sound levels: - Approach or Exceed 67 dba - Increase by 10 dba over existing, pre-project noise levels

15 Feasibility: Deals with engineering and acoustical considerations, such as: - Can a noise reduction of at least 5 dba be achieved at the majority of the impacted locations warranting noise abatement? - Will the placement of a noise barrier restrict vehicular or pedestrian travel? - Will placement of a noise barrier cause a safety problem with sight distance or a clear vehicular recovery zone?

16 Reasonableness: Is based on a number of factors, including: - Viewpoint of benefitted receptors (weighted) - Noise reduction design goals - Cost per square footage (maximum of 2000 sq.ft./benefitted residence)

17 The project corridor was divided into areas of common noise environment, referred to as Noise Study Areas, or NSA s. Eight NSA s were identified for the purpose of the noise analysis. Five of the eight NSA s met the three-phased criteria for noise abatement. Noise abatement is recommended for NSA s 1, 2, 3, 4, and 5 which are all primarily residential areas. Noise abatement is not recommended for the cemetery, hotel, and a mixed use area.

18 Union Deposit I-81 Route 22

19 Elmerton Ave. Colonial Rd.

20 N. Madison Ave. Elmerton Ave.

21 Magoulas Blvd. Locust Ln.

22 S. Arlington Ave. Londonderry Rd.

23 Road Side View

24 Residential Side View

25 Ashlar Stone Brown Option 1 Ashlar Stone Gray Option 2

26 Chiseled Limestone Brown Option 3 Chiseled Limestone Gray Option 4

27 Sawn Plank Brown Option 5 Sawn Plank Gray Option 6

28 Brick Option 7 Split Block Option 8

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30 Public outreach is the last step in PennDOT s phased approach to noise abatement reasonableness. Both benefitted property owners and renters receive votes. Only one vote per household/property will be accepted. 50% or greater of all votes per Noise Sensitive Area must be in favor of the proposed noise barrier. Color and texture options will be tallied and included in the Final Design Noise Analysis Report.

31 THANK YOU! Project Schedule - Contract 2 Begin Right-of-Way Acquisition - Contract 2 Late Summer 2015 Community Sound Barrier Meetings Fall 2015 Complete Right-of-Way Acquisition - Contract 2 Late 2017 Begin Construction - Contract 2 Fall 2018 Noise Wall Construction Fall 2020 Complete Construction - Contract 2 Fall 2021 Contact Info: John Bachman PennDOT District Herr Street Harrisburg, PA Phone: (717)

32 Project Schedule - Contract 2 Begin Right-of-Way Acquisition - Contract 2 Late Summer 2015 Community Sound Barrier Meetings Fall 2015 Complete Right-of-Way Acquisition - Contract 2 Late 2017 Begin Construction - Contract 2 Fall 2018 Noise Wall Construction Fall 2020 Complete Construction - Contract 2 Fall 2021