Figures
Figure 5 A: Boulevard Alternative
Figure 5 B: Access Road Alternative
Figure 5 C: Hybrid U-Turn/Rotary Alternative
Figure 5 D: Boulevard with Inner Belt Connection Alternative
Figure 5 E: Air Quality Pathway
Figure 5 F: Noise Pathway
Figure 5 G: Mobility and Connectivity Pathway
Figure 5 H: Public Safety Pathway
Figure 5 I: Land Use and Economic Development Pathway
Figure 5 J: Research Questions
Air Quality
What are the public health impacts/benefits associated with changes in:
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Air pollution from vehicles including technology changes;
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Proximity within 200 meters of roadway (for indirect measure of ultrafine particles and higher gradient of vehicle emissions);
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Elevation of corridor.
Noise
What are the public health impacts/benefits associated with changes in:
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Noise along corridor and adjacent streets from increases in vehicles in intersections, proximity, and technology changes;
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Elevation of corridor.
Mobility and connectivity via traffic, transit, pedestrian/bicycling network:
What are the public health impacts/benefits associated with changes in:
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Vehicle use on corridor;
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Vehicle use in adjacent areas;
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Pedestrian/bicycle use;
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Access and use of public transportation (e.g., transit buses, Green Line Extension);
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Regional and local linkages via mode of transport (e.g., Union Square, Inner Belt, and Brickbottom).
Public Safety
What are the public health impacts/benefits associated with changes in:
Land Use and Economic Development
What are the public health impacts/benefits associated with changes in:
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Local business investment;
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Access to goods (e.g., grocery store, pharmacy) and services (e.g., health care providers, schools, libraries);
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Housing and affordable housing (including possibility of gentrification and displacement);
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Land use (e.g., Inner Belt and Brickbottom);
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Availability and access to parks, open space, and community path;
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Transportation costs;
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Preservation of historical and cultural resources.
Figure 5 K: Study Area for the MassDOT Grounding McGrath Study
Figure 5 L: Pilot HIA Study Area According to Census Tracts in Somerville, MA
Figure 5 M: Pilot HIA Study Area According to Zip Codes In Somerville, MA
Figure 5 N: Pilot HIA Study Area According to Neighborhoods in Somerville, MA
Figure 5 O: Pilot HIA Study Area According to Transportation Analysis Zones in Somerville, MA
Figure 5 P: Pathways Evaluated in MassDOT GM Study
Assessment
Introduction
The assessment phase of the pilot HIA consists of the following:
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Summary of existing conditions of the study area including demographic and socioeconomic information, determination of vulnerable populations in the study area, and review of baseline health information in the study area;
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Assessment of the health impacts according to the analytical plan presented in the scoping section and determination of the significance of these impacts (e.g., direction, magnitude, distribution); and
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Limitations and uncertainties in the assessment.
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