Pass the USGBC Leadership in Energy and Environmental Design (LEED) LEED-AP-ND Questions and answers with ExamsMirror

The Federal Emergency Management Agency (FEMA) provides flood maps that the LEED for Neighborhood Development project team would need to prepare as an exhibit for an upcoming zoning commission meeting. For projects outside the U.S., the equivalent local agency would provide similar data.

Flood Maps and FEMA:FEMA is the primary agency responsible for creating and maintaining flood hazard mapsin the United States. These maps delineate areas that are at risk of flooding, typically including 100-year and 500-year floodplains. These maps are crucial for urban planning and compliance with federal regulations, such as those related to flood insurance.

Purpose of Flood Maps:Flood maps are used to identify areas that are prone to flooding, which is essential for ensuring that new developments are sited in locations that minimize flood risk. In the context of LEED-ND, these maps help determine whether the project site complies with floodplain avoidance prerequisites and credits.

Local Equivalents:Outside the United States, similar agencies may exist to provide flood risk information. These agencies follow local regulations and standards but serve the same purpose as FEMA in helping to mitigate the risks associated with flooding.

The LEED Reference Guide for Neighborhood Development provides information on the requirements for floodplain avoidance and the documentation needed, including flood maps.

TheLEED v4 Neighborhood Developmentdocumentation offers further guidance on how to use flood maps in the certification process.

Detailed Explanation:References:For additional reference, consult:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

For the Neighborhood Pattern and Design Credit concerning Minimum Building Energy Performance (GIBc), the requirement is that 90% of all new homes (in this case, the 25 new homes) must meet the requirements of the LEED for Homes v4 Minimum Energy Performance prerequisite. This ensures that the new homes are designed and constructed to be energy-efficient, reducing overall energy consumption and greenhouse gas emissions. The option of applying the ASHRAE Standard 90.1-2010 does not apply to single-family homes under LEED ND; instead, the LEED for Homes rating system is used for residential projects.

For the Green Infrastructure and Buildings Credit related to Renewable Energy Production, cogeneration of electricity and heat using mill residue biomass is an eligible source of renewable energy. This process, also known as combined heat and power (CHP), efficiently uses biomass to generate both electricity and thermal energy, reducing overall energy consumption and greenhouse gas emissions. Passive solar heating strategies, while beneficial for reducing energy demand, do not directly produce renewable energy. Geothermal energy used with a ground-source heat pump is generally considered energy efficiency rather than renewable energy. Photovoltaic energy generation from off-site locations may not qualify unless it is directly tied to the project.

For a project to be eligible for the Neighborhood Pattern and Design Prerequisite on Compact Development, particularly when dealing with density limits, setting aside a portion of the land as a protected community open space easement can help meet the prerequisite requirements. By dedicating 15% of the total land area as protected open space, the project demonstrates a commitment to sustainable land use and enhances community amenities, which aligns with the LEED ND goals. This approach can help to balance density with green space, even in areas where transit service is limited.

References:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

The Backlight-Uplight-Glare (BUG) rating method is used to assess the performance of luminaires in controlling light pollution, which is critical for achieving the Green Infrastructure and Buildings Credit for Light Pollution Reduction. The BUG system evaluates how much light is directed in unwanted directions—backward, upward, and as glare—thus helping to minimize light pollution. This method is recognized by the Illuminating Engineering Society (IES) and is preferred over simply evaluating the type of light source, like LEDs, or other general methods.

The Smart Location and Linkage Credit for Steep Slope Protection aims to protect steep slopes from development to prevent erosion, habitat destruction, and other environmental impacts. For a site with a significant portion of steep slopes, such as the described 2-acre area at a 50% slope, LEED ND guidelines typically allow only a smaller percentage of the site to be developed. In this scenario, 50% of the site may be developed, which corresponds to option A.

References:

LEED v4 Neighborhood Development Guide: This document outlines the requirements for protecting steep slopes and the allowable percentage of development based on slope severity (USGBC, LEED v4 Neighborhood Development Current Version).

LEED Reference Guide for Neighborhood Development: Provides detailed criteria for determining allowable development on steep slopes and the associated credits (USGBC, LEED Reference Guide for Neighborhood Development).

For a project that temporarily reroutes existing transit service as part of the construction process, the service can be rerouted for a maximum of two years and still qualify for the Smart Location and Linkage Credit: Access to Quality Transit in LEED for Neighborhood Development.

Access to Quality Transit Credit:This credit under the Smart Location and Linkage (SLL) category is intended to ensure that projects are located in areas with access to public transit. The credit promotes development near existing or planned transit services to reduce reliance on automobiles and lower greenhouse gas emissions.

Temporary Rerouting:During construction, it may be necessary to temporarily reroute transit services. LEED-ND allows this as long as the disruption is limited in duration. The maximum allowable period for rerouting transit services while still maintaining eligibility for this credit is two years.

Restoration Requirement:The project team must secure an agreement with the transit agency to restore the original service routes after construction. This ensures that transit access is re-established, thereby maintaining the intent of the credit.

The LEED Reference Guide for Neighborhood Development outlines the criteria for maintaining access to transit during construction and the conditions under which temporary rerouting is acceptable.

TheLEED v4 Neighborhood Developmentdocumentation provides additional details on how to document and manage transit service changes during the construction phase.

Detailed Explanation:References:For more comprehensive guidance, refer to:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

These explanations provide detailed insights into the requirements and conditions for achieving LEED-ND credits and adhering to Minimum Program Requirements.

To make the 400-acre (161-hectare) site eligible for LEED for Neighborhood Development certification, rezoning the project for higher density is a critical initial step. LEED for Neighborhood Development promotes higher-density development as a way to reduce land consumption, preserve open space, and create more sustainable, walkable communities. The current zoning of two dwelling units per acre (five DU/hectare) may be too low to meet the prerequisites or credit requirements for density in LEED ND. By increasing the density through rezoning, the developer can better align the project with LEED ND goals and increase the likelihood of achieving certification.