Exhibit A
NASHUA 16314 — East Hollis & Bridge Street Intersection Improvement Project
Scope of Work and Task Descriptions
October 18, 2017
finding for project-level conformity. MJ will determine if the project’s parameters fall within
the acceptable range of this finding. In addition, MJ will perform a qualitative assessment of
the proposed alternatives and potential air quality impacts of the project. Experience with
similar projects with higher traffic volumes indicates it is unlikely this project would result in
violations of the National Ambient Air Quality Standards (NAAQS). Therefore, no
quantitative microscale analysis is proposed. Instead, a description in general terms of the
changes in traffic patterns and their likely effects on air quality will be provided. Other
similar projects will be cited to support the conclusions.
e Noise — MJ will determine if the preferred alternative is considered a Type | project that
requires a noise analysis. If required, this analysis would be completed in the next phase of
the project.
e Traffic and Transportation —The existing traffic and transportation network will be described,
including any bicycle or pedestrian facilities within the project corridor.
MJ will attend one NHDOT Natural Resource Agency Coordination Meeting and Cultural Resource
Agency Coordination Meeting during Phase | of the project to obtain feedback on potential
resource concerns. It is anticipated that two MJ staff members will attend each meeting, and that
MJ will provide meeting minutes.
Phase ID — Project Definition
MJ will develop a formal Purpose and Need statement for the project consistent with NEPA and
other federal guidelines. The statement will be developed through public involvement. At the
Public Listening Session described in Phase IG, the issues, problems, concerns and deficiencies
of the East Hollis Street and Bridge Street intersection will be discussed. The results of these
public discussions will be the basis for the Purpose and Need statement.
Phase IE — Alternatives Development
A base plan will be prepared during this task for the purpose of developing conceptual alternatives
for the project. The base plan will use already available color aerial photographs with key features
identified. Existing right of way, property boundaries, and zoning information will be incorporated
from existing information.
The first step will be to develop, with consultation with the City, three (3) potential concepts for
consideration to determine which should be carried forward for further development. These
concepts will be schematic in nature with no detailed geometry.
Traffic analyses will be performed for the concepts to determine how they perform. It is assumed
that the Nashua Regional Planning Commission (NRPC) has information available from their
regional model that can be used to develop future traffic volumes. MJ will communicate with the
NRPC to develop projections that can be used to evaluate each alternative. Highway Capacity
Manual (HCM), Synchro, and Sidra software will be used to perform the evaluations. SimTraffic
software will be utilized to present traffic simulations of each alternative. In addition, Sidra
Intersection software will be used to evaluate roundabout concepts. Evaluations to be conducted
for the following scenarios:
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