Draft Project Impact Report - Boston Redevelopment Authority

Exeter Residences/888 Boylston
Regulatory Context
Methodology
\\Mabos\projects\09916.00\docs\Permits\DPIR\Text\DPIR Chapter 5
Environmental.docx
Pursuant to the BRA Scoping Determination the following three study scenarios
were analyzed for each study date:
1. Existing Conditions
2. 155-feet Zoning Height, and
3. Proposed Program.
As required by Section 80B(2)(b) of the City of Boston Zoning Code for Large Project
review, the Proponent completed a shadow study to ascertain the potential new
shadow impacts resulting from the Project. This study has particular emphasis on
sidewalks, parks and other public open spaces as well as the existing pedestrian
plaza and courtyard areas around the existing Prudential Center AvalonBay
buildings and the Boston Public Library courtyard east wall. As contemplated by
Section 80B(2)(b) of the Code, the shadow study for the Project compares the
Proposed Program and Existing Conditions. Furthermore, the 155-feet Zoning
Height condition was also analyzed for this DPIR.
The following shadow study has been prepared using methodologies consistent with
accepted practices for such studies completed under Article 80 review. The analysis
provides a comparison of the Existing Conditions, 155-feet Zoning Height and
Proposed Program conditions. This is accomplished by using a three-dimensional
CAD model of the Project area using data provided by the BRA, updated as
necessary to include recently completed projects and in the case of the 155-feet
Zoning Height and Proposed Program conditions, to include any approved projects
within the study area. The study was completed using standard sun altitude and
azimuth data for each study date estimated to occur at latitude and longitude
42.36°N, 71.06°W (Table 5-4) according to Appendix 6 of BRA Development
Guidelines.
DRAFT - Environmental Protection 5-12