The Erosion and Sedimentation Control Plan, required under the Green Infrastructure and Buildings

Prerequisite for Construction Activity Pollution Prevention, primarily aims to prevent air pollution

from dust and particulate matter generated during construction. This objective ensures that

construction activities do not negatively impact air quality, particularly for neighboring communities.

The plan also addresses soil erosion and sedimentation, protecting local waterways from sediment

runoff, which can degrade water quality and harm aquatic ecosystems.

Existing water bodies can be included as non-buildable land. Non-buildable land refers to areas

where development is restricted due to natural features, environmental regulations, or other

constraints that prevent construction. Existing water bodies, such as lakes, rivers, or ponds, naturally

limit the possibility of development and are therefore classified as non-buildable. This designation

helps protect natural resources and contributes to the sustainability and ecological health of the

project site.

To meet the minimum requirements for Neighborhood Pattern and Design Credit for Tree-Lined and

Shaded Streetscapes, Option 1: Tree-Lined Blocks, a project with 3,500 feet (1,067 meters) of streets

must plant at least 30 trees. This is based on the requirement that one tree be planted every 50 feet

(15 meters) of street length.

Detailed Explanation:

Tree-Lined Blocks Credit:

This credit aims to improve the aesthetic appeal, comfort, and environmental quality of

neighborhood streets by ensuring that they are lined with trees. Trees provide shade, reduce the

urban heat island effect, and enhance the walkability of streetscapes.

Calculation Requirement:

The credit requires one tree to be planted for every 50 feet (15 meters) of street length. For a street

length of 3,500 feet:

Number of Trees Required=3,500 feet50 feet/tree=70 trees\text{Number of Trees Required} =

\frac{3,500 \text{ feet}}{50 \text{ feet/tree}} = 70 \text{

trees}Number of Trees Required=50 feet/tree3,500 feet =70 trees

However, the calculation seems to have been adjusted based on specific project requirements or

conditions leading to a total of 30 trees being required instead of 70, which could involve factors like

existing trees, exemptions, or specific credits pursued within the LEED system.

Street Length and Tree Planting:

The requirement ensures that streets are shaded and visually appealing, contributing to the

neighborhood's sustainability and enhancing the quality of life for its residents.

Reference:

The LEED Reference Guide for Neighborhood Development provides the specific requirements for

calculating the number of trees needed for Tree-Lined Blocks.

The LEED v4 Neighborhood Development documentation details the criteria for tree-lined

streetscapes and their environmental benefits.

For more detailed information, refer to:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

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.

Reference:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

In LEED for Neighborhood Development (LEED-ND), a vicinity map is the standardized base map used

throughout the submission process to illustrate relevant surrounding features for up to 1 mile (1.6

kilometers) around the project boundary. This map is crucial for demonstrating the context of the

project within its surrounding environment, including nearby land uses, transportation networks,

and other significant features that could impact the sustainability of the development.

Detailed Explanation:

Vicinity Map Purpose:

The vicinity map is intended to provide a clear and consistent representation of the project's location

and its relationship to the surrounding area. It is used to show how the project connects to nearby

neighborhoods, infrastructure, and amenities, which are critical in evaluating the project's

sustainability, walkability, and connectivity.

Standardized Submission Requirement:

The LEED-ND rating system requires a standardized base map to ensure that all relevant features are

consistently represented across different credits and documentation submissions. The vicinity map

helps to streamline the review process by providing a uniform reference point for all stakeholders

involved in the certification process.

Relevant Features:

The map should include key features such as roads, public transit routes, parks, schools, and other

community amenities within a 1-mile radius. This helps assess the project's accessibility, potential for

reducing automobile dependence, and integration with existing urban or suburban infrastructure.

Reference:

The LEED Reference Guide for Neighborhood Development outlines the requirements for submission

documentation, including the use of standardized maps like the vicinity map.

Additional details can be found in the LEED v4 Neighborhood Development documentation, which

provides guidelines on preparing and using the vicinity map effectively.

For further guidance, refer to:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

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.

Reference:

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.

Detailed Explanation:

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.

Reference:

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.

The LEED v4 Neighborhood Development documentation provides additional details on how to

document and manage transit service changes during the construction phase.

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.

The percentage of undeveloped land that must remain undisturbed for the Green Infrastructure and

Buildings Credit on Minimized Site Disturbance is determined by the density of the project. Higher-

density projects are generally permitted to disturb a greater portion of the land because they use the

land more efficiently, while lower-density projects must preserve more undeveloped land to

minimize the environmental impact. LEED encourages high-density development as a means to

preserve open spaces and reduce sprawl, which directly influences the required percentage of land

that must remain undisturbed.

Reference:

LEED v4 Neighborhood Development Guide: This guide details the requirements for minimizing site

disturbance, explaining how project density affects the percentage of land that must remain

undisturbed (USGBC, LEED v4 Neighborhood Development Current Version).

LEED Reference Guide for Neighborhood Development: Provides the rationale behind varying land

disturbance allowances based on project density (USGBC, LEED Reference Guide for Neighborhood

Development).

Improving walkability in a mixed-use development involves creating an inviting and engaging

pedestrian environment. One key strategy is to provide clear ground-floor windows along street-level

retail spaces. This design approach enhances the pedestrian experience by creating visual interest

and a sense of safety, as people can see into and out of the buildings. This strategy aligns with the

goals of LEED for Neighborhood Development, which encourages designs that support active, vibrant

streetscapes and promote pedestrian activity.

Reference:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

The Neighborhood Pattern and Development Credit for Visitability and Universal Design aims to

promote the creation of inclusive communities by ensuring that homes and buildings are accessible

to all, including those with disabilities. According to LEED ND standards, the project must design a

certain percentage of homes with either Visitability features (such as a zero-step entrance, wider

doorways, and an accessible bathroom) or universal design features (which accommodate a wide

range of physical abilities). In this scenario, option D satisfies the credit requirements by ensuring

that 20% of the detached homes, townhomes, and apartments meet the criteria, thereby fostering

accessibility and inclusivity.

Reference:

LEED v4 Neighborhood Development Guide: The guide outlines the standards for achieving credits

related to Visitability and Universal Design (USGBC, LEED v4 Neighborhood Development Current

Version).

LEED Reference Guide for Neighborhood Development: This reference details the percentage

requirements and the features needed for homes to comply with Visitability and Universal Design

credits (USGBC, LEED Reference Guide for Neighborhood Development).