Mestre Greve Associates Division of Landrum and Brown
Kahului Airport Access Road Page 1
1.0 Introduction The purpose of this repOli is to evaluate noise impacts and abatement for the Kahului Airport Access Road Phase 1 project per Federal Highway Administration (FHWA) and Hawaii Department of TranspOliation (HOOT) standards. FHW A requirements for highway noise abatement are defined in Title 23, Part 772 of the Code of Federal Regulations (23 CFR 772) "Procedures for Abatement of Highway Traffic Noise." According to 23 CFR 772.3, all highway projects that are developed in conformance with this regulation are deemed to be in conformance with Federal Highway Administration (FHWA) noise standards. HDOT's noise policy is presented in "Highway Noise Policy and Abatement Guidelines" (April 2011 with corrections issued November 2011). The HOOT policy adopts the FHWA standards and defines parameters in determining impacts and abatement that are not defined by FHWA. A description of the proposed project is presented in the next section. Section 2.0 presents background information on sound and traffic noise. Section 3.0 presents a detailed description of the FHW A and HOOT noise criteria that are applicable to the project. Section 4.0 provides detailed descriptions of the methodologies and procedures used in the preparation of this report. Existing measured and modeled noise levels in the project area are presented in Section 5.0. This includes a discussion of measured noise levels, modeled noise levels and a comparison of modeled noise levels to measured noise levels. Section 6.0 presents projected future noise levels with the project. Future noise levels, along with the projected increases over existing conditions are compared to state and federal criteria to determine which receptors are projected to be impacted by the proposed project in Section 6.1. Noise abatement is required to be considered for all impacted receptors. The results of this analysis are presented in Section 6.2. Section 7.0 discusses potential impacts from construction noise.
1.1
Project Description
The Kahului Airport Access Road project proposes a new access road to the Kahului Airport replacing the service currently provided by portions of Dairy Road and Keolani Place. Phase 1 of the project includes the realignment of a pOliion of Dairy Road, a new four-lane highway between Puunene Avenue and Hana Highway as well as intersection improvements at the Hana Highway junction. Figure 1 presents a vicinity map showing the location of the project. Figure 2 presents an aerial photograph of the project area with the project extents indicated along with areas with noise sensitive receptors per FHWA and HOOT criteria. Figure 2 shows that there are five noise sensitive receptor areas. There are residences along the northwest side of Dairy Road between Puunene Avenue and Hukilike Street (Receptor Area 1). On the southeast side of Dairy Road just south of Puunene Avenue there is a church with a preschool (Receptor Area 2). An auto/motorcycle dealership with an outdoor sales area (Receptor Area 3) and a fire station (Receptor Area 4) are located southeast of Dairy Road near the intersection with Hukilike Street. There is an outdoor retail sales area (garden center) (Receptor Area 5) located just nOlihwest of the proposed project approximately 1,200 feet southeast of Hana Highway which is considered a noise sensitive use. These receptor areas are discussed in detail in Section 5.1.