HomeMy WebLinkAboutSP-22-020 - Supplemental - 0039 Bowdoin Street (29)39 Bowdoin St.
BFJ reviewed L&D’s Traffic Impact Assessment (TIA) for the proposed development of Lot 7 at the
Meadlowland Business Park. BFJ’s analysis follows the assumption that the 21,790 sf building will consist
of the following: 7,870 sf of office space (ITE #720), 6,960 SF of general light industrial (ITE #110), and
6,960 of warehouse space (ITE #150).
Trip Generation
BFJ conducted trip generation analysis based on the parameters mentioned above.
L&D analysis utilized ITE average ratios to calculate trip generation projections for both the light
industrial use and the warehouse use. BFJ notes that ITE recommends Best Fit methodology for
these uses, as well as for the General Office use which L&D utilized. Given this, BFJ concludes
that L&D’s trip generation estimates for the warehousing and light industrial uses may be low.
BFJ acknowledges that the relatively low floor areas of the proposed uses might result in an
overestimation of trip generation estimates when ITE Best Fit methodology is utilized, even
though this is recommended by ITE over Average Rate methodology. Therefore, BFJ
recommends that the Average of the two ITE methodologies is utilized for each use to calculate
trip generation (Table 4 below). The following tables are shown for comparative purpose:
o Table 1: 39 Bowdoin St. Trip Generation: L&D Analysis
o Table 2: 39 Bowdoin St. Trip Generation: ITE Average Rate Methodology
o Table 3: 39 Bowdoin St. Trip Generation: ITE Best Fit Methodology
o Table 4: 39 Bowdoin St. Trip Generation: Average of Two ITE Methodologies
With this approach, BFJ calculates an overall AM Peak Hour trip generation of 36 (11 trips higher
than L&D analysis) and a PM Peak Hour trip generation of 36 (9 trips higher than L&D analysis).
Despite this projected difference, BFJ does not anticipate consequent adverse traffic impacts.
Land-Use
Gross Floor
Area (sf)Enter Exit Total Enter Exit Total
#110- General Lt. Industrial 6960 4 1 5 1 5 6
#150- Warehousing 6960 1 0 1 0 1 1
#720- General Office 7870 17 2 19 3 17 20
22 3 25 4 23 27
Table 1- 39 Bowdoin St. Trip Generation: L&D Analysis
AM Peak Hour PM Peak Hour
Total Trips
Land-Use
Gross Floor
Area (sf)Enter Exit Total Enter Exit Total
#110- General Lt. Industrial 6,960 5 1 6 1 4 5
#150- Warehousing 6,960 1 0 1 0 1 1
#710- General Office 7,870 11 1 12 2 9 11
17 2 19 3 14 17
Table 2 - 39 Bowdoin St. Trip Generation: ITE Average Rate Methodology
AM Peak Hour PM Peak Hour
Total Trips
Land-Use
Gross Floor
Area (sf)Enter Exit Total Enter Exit Total
#110- General Lt. Industrial 6,960 8 1 9 1 5 6
#150- Warehousing 6,960 19 6 25 8 20 28
#710- General Office 7,870 17 2 19 3 17 20
44 9 53 12 42 54
Table 3 - 39 Bowdoin St. Trip Generation: ITE Best Fit Methodology
AM Peak Hour PM Peak Hour
Total Trips
Table 4- 39 Bowdoin St. Trip Generation: Average of Two ITE Methodologies (Average Rate and Best Fit)
Land-Use
Gross Floor
Area (sf)Enter Exit Total Enter Exit Total
#110- General Lt. Industrial 6,960 7 1 8 1 5 6
#150- Warehousing 6,960 10 3 13 4 11 15
#710- General Office 7,870 14 2 16 3 13 16
31 6 36 8 28 36Total Trips
AM Peak Hour PM Peak Hour
Driveway Alignment
BFJ reviewed the site plan for 39 Bowdoin Street and asks the following questions: Assuming no
substantial topographical challenges, could the site’s easterly access driveway that connects to Bowdoin
Street be aligned directly with the parking aisle to ease internal circulation and also allowing the trucks
to back to the loading docks from the parking lot rather than from the street?