Draft Project Impact Report - Boston Redevelopment Authority

Exeter Residences\888 Boylston
Pedestrian Analysis
\\Mabos\projects\09916.00\docs\Permits\DPIR\Text\DPIR Chapter 4
Transportation081208-clean.docx
The current development program for 888 Boylston proposes a total of 235 parking
spaces to be used by the office component of Phase 4a. This is an increase of 177
parking spaces additional to the 58 parking spaces which had been approved for
Phase 4a under the Development Plan. The current development program will
provide 0.65 spaces per 1000 square feet of office space based on the square footage
of office space. The parking supply is based on 15 floors of office space and 2 floors
of retail space. If additional retail space is implemented, the parking will be reduced
to commensurate with the reduction in office space. For every 1000 SF of office space
that is reduced due to a corresponding increase in retail (3 rd or 4 th floors), the number
of parking spaces will be reduced by 0.65 spaces.
All parking necessary to support the 888 Boylston building program will be provided
within the existing garage limits. The existing Green level of the Prudential Center
parking garage was constructed with an 18 foot floor to floor dimension within the
footprint of 888 Boylston. The revised building provides for the insertion of a
mezzanine parking deck within this space, increasing the parking capacity of the
garage within the building footprint. The mezzanine deck would be valet accessible
only, allowing for a typical managed parking operation. Access will be via a ramp
from the Green level only, and no additional access ramps or curb cuts from the
street are planned. A forty (40) feet No-standing and No-Stopping curb area is
proposed in front of the 888 Boylston building entrance to accommodate pick-up and
drop-off activities for 888 Boylston and the Prudential Center Arcade.
The approved Development Plan including the Mandarin Oriental Boston, provides
for 986 spaces for residential, 2,067 commercial spaces and 867 reserved as
employee/tenant spaces for a total of 3,920 spaces, of which 58 are attributable to
Phase 4a. With the addition of 177 spaces as part of the 888 Boylston program and
up to 132 spaces as part of the Exeter Residences program, the total parking spaces
available within the Prudential Center parking garages will be up to 4,229 spaces
(1,118 residential, 2,067 commercial, 1,044 employee/tenant). Figure 4-20 and 4-21
illustrate the access and egress points for parking for the proposed two buildings.
The approved Development Plan for the Prudential Center Redevelopment project
includes a comprehensive set of pedestrian ways that provide access and circulation
to and through the area. The current proposal generally supports and maintains the
previously planned pedestrian routes and patterns, with some modification that will
enhance pedestrian access and safety in the area. In particular, the Exeter Residences
will provide a public stairway and elevator which will enable access from Exeter
Street to The Prudential Center Plaza. The Exeter Residences will include streetscape
improvements along Exeter Street to create a sense of arrival through location of the
building entry, and landscaping improvements. The most prominent changes along
Boylston Street include improvements to the sidewalk in front of the proposed 888
Transportation 4-29