HomeMy WebLinkAboutSD-22-02 - Supplemental - 0916 Shelburne Road (4)
Lamoureux & Dickinson Page 1
Consulting Engineers, Inc.
TECHNICAL MEMORANDUM
Project: Davis Art Studio - 916 Shelburne Road, South Burlington
Date: January 14, 2022
From: Roger Dickinson, PE, PTOE
Subject: PM Peak Hour Trip Generation
Introduction
The Davis Art Studio proposes to amend their site plan to create a PUD on their existing property at 916
Shelburne Rd. Historically, there have been three buildings on the property; one housing the art studio
plus two others housing three residential apartments. The single-unit apartment (A-frame) was recently
demolished after experiencing storm damage, and the two-apartment building (i.e. the Carriage House)
will be replaced with a new 1,594 sf educational building. The art studio building will also house
educational space for the art studio. The former 25 seat restaurant/café in the art studio building closed
at the start of the COVID pandemic. Although there are no plans to reopen the restaurant/café, and its
space is presently being used as a bakery (see below), it is retained in the proposed land-uses below.
Existing Traffic Budget
The existing pm peak hour traffic budget is based on the size of the property and it location in Traffic
Overlay District Zone 1. The maximum pm peak hour trip generation rate permitted in Zone 1 equals 15
vehicle trip ends per hour (vte/hr) per 40,000 sf of parcel size. At a parcel size of 71,003 sf, the existing
traffic budget equals 26.62 vte/hr.
Proposed PM Peak Hour Trips
Table 1 on the following page presents the proposed land-uses (as defined in the Land Development
Regulations), their proposed gross floor areas and student numbers, the ITE land-use category most
applicable to the proposed land-use, the pm peak hour trip rate, and finally the estimated pm peak hour
trips generated by each proposed land-use.
The ITE land-use categories used in Table 1 were selected as ones best fitting the proposed land-uses.
Although the Art Studio provides educational opportunities for high school students and adults in
addition to younger students, the ITE Private School (K-8) category has been used in Table 1 in order to
provide a more conservative estimate of its pm peak hour trips. Using the ITE Private School (K-12)
category would have lowered the pm peak hour trip rate from 0.26 trips/student to 0.17 trips/student.
Lamoureux & Dickinson Page 2
Consulting Engineers, Inc.
Table 1 - Proposed PM Peak Hour Trip Generation1
Proposed Land-Use
Gross Floor
Area (sf)
#
Students ITE Land-Use Category Trip Rate
Trips
(vte/hr)
New Educational Building 1,594 24 #530 - Private School (K-8) 0.26a 6.24
Ex. Art Studio (Educational Facility) 3,950 55 #530 - Private School (K-8) 0.26a 14.30
Restaurant, Short-Order 190 -- #930 - Fast Casual Restaurant 12.55b 2.38
Total PM Peak Hour Trips 22.92
a vte/hour/student
b vte/hour/1,000 sf
Additionally, in the case of the proposed short-order restaurant land-use, this is a bakery (Pie Society)
which specializes in custom-made pies. Customers pre-order their pies on-line each week, and pick
them up at an off-site location in Burlington on Thursdays between 4-6 pm or at 916 Shelburne Rd on
Fridays between 4-6 pm. There are no accommodations to consume the pies or other food on-site.
1 Trip Generation, Institute of Transportation Engineers, 11th Edition