HomeMy WebLinkAboutZBA transportation memo -1330 Phinneys v1
4897-7783-4438, v. 1
To: Barnstable Zoning Board of Appeals
From: Steve Tupper, P.E., Deputy Director/Transportation Program Director
Date: August 10, 2026
Re: 1330 Phinney’s Lane
____________________________________________________________
Set forth below is an evaluation of transportation impacts from converting the
existing/permitted office building at 1330 Phinney’s Lane to use as the Cape Cod
Commission’s (“CCC”) administrative office.
Trip Generation
I have reviewed the likely change in trip generation for converting the existing
use/permitted use at 1330 Phinney's Lane to use as a CCC office. Based on data from the
12th Edition of the Institute of Transportation Engineers (ITE) Trip Generation Manual,
it is reasonable to anticipate a reduction in trips from this land use change.
Existing Permitted Use - The existing use was assumed to be 5,580 sq. ft. of medical-
dental office. I chose ITE Land Use Code (LUC) 720 - Medical-Dental Office Building -
Stand-Alone.
• ITE LUC 720 - Medical-Dental Office Building: “A medical-dental office building is a
facility or clinic with one or more tenants that provides diagnoses and outpatient care
on a routine basis. Tenants range from individual private physicians and dentists to
large medical practices. Patient visits are by appointment only.”
Proposed Use – The proposed land use was assumed to be 5,580 sq. ft. of government
office building. I chose ITE LUC 730 (Government Office Building) to characterize the
proposed use.1
• ITE LUC 730 Government Office Building: “A government office building is an
individual building containing either the entire function or simply one agency of a city,
county, state, federal, or other governmental unit.”
The table below summarizes the estimated trip generation for a 5,580 sq. ft. building for
those two uses.
1 ITE LUC 712 (Small Office Building) also reasonably reflected the proposed use. ITE LUC 712 has slight ly
lower trip generation rates, so ITE LUC 730 provided a conservatively high estimate of the potential trip
generation of the proposed use.
4897-7783-4438, v. 1
Weekday Daily
AM Peak Hour of
Generator
PM Peak Hour
of Generator
Medical-Dental Office Building -
Stand-Alone (ITE LUC 720) 156 24 28
Government Office Building
(ITE LUC 730) 135 22 19
Note: Weekday daily and peak hour trip generation estimates for 5,580 sq. ft. GFA using
data from the 12th Edition of the ITE Trip Generation Manual.
Parking Generation
I reviewed the data in the 6th Edition (most recent) of the Institute of Transportation
Engineers (ITE) Parking Generation Manual. For ITE LUC 730 (Government Office
Building), the parking demand data shows an average peak observed demand of 18
spaces for a 5,580 sq. ft. building.2
2 Note, for reference, parking demand is lower (roughly half) for ITE LUC 712 (Small Office Building).