PZ Item 10 - Trip Generation Letter 12-1-19h MEMORANDUM
WALKER
C O N S U L T A N T S RPAI CENTRAL/MAIN RETAIL BUILDING -TRIP GENERATION ANALYSIS
27-1106.01
DATE: December 1, 2019
TO: Mr. Scott R. Miller
COMPANY: Retail Properties of America, Inc.
ADDRESS: 2021 Spring Road, Suite 300
CITY/STATE: Oak Brook, IL
COPY TO: Mallory Baker
FROM: Jeff Weckstein and James Warner, PE
PROJECT NAME: Southlake Town Square RPAI Central Avenue and Main
Street Retail Building—Trip Generation
PROJECT NUMBER: 27-1106.01
Walker Consultants (Walker) is pleased to submit this trip generation analysis for the proposed retail building at
Central Avenue and Main Street within Southlake Town. The proposed project consists of a 4,000 square foot
retail outparcel building. The proposed project would displace 21 off-street parking spaces. Figure 1 shows the
location of the proposed retail building
Figure 1
Retail Building Site
Image Source: Google Earth Pro, 2019
WALKER
CONSULTANTS
MEMORANDUM
RPAI CENTRAL/MAIN RETAIL BUILDING -TRIP GENERATION ANALYSIS
27-1106.01
TRIP GENERATION ANALYSIS METHODOLOGY
To determine the project's anticipated trip generation, Institute of Transportation Engineers (ITE) 10th Edition
trip generation rates for the shopping center land use were utilized. The analysis calculates the AM peak hour
trips, PM peak hour trips and average daily trips (ADT) forecast to be generated by the proposed retail outparcel
building, which are the typical time periods analyzed in a traffic study. Additionally, since retail uses peak on
Saturdays, the project's anticipated trip generation during the Saturday peak hour of the retail generator and
Saturday daily trips have also been calculated.
Table 1 summarizes the ITE trip generation rates for the proposed land use as well as the traffic generation of
the proposed project based on these rates.
Table 1: Trip Generation of Proposed RPAI Central Avenue and Main Street Retail Building
Note: TSF = Thousand Square Feet
As shown in Table 1, the proposed RPAI Central Avenue and Main Street Retail Building is projected to generate
4 weekday AM peak hour trips, 15 weekday PM peak hour trips and 151 weekday daily trips at the project
driveways. The proposed project is projected to generate 18 Saturday peak hour trips and 184 Saturday daily
trips at the project driveways. The analysis shown in Table 1 assumes no reduction in trip generation
associated with internal trip capture even though the proposed retail building is part of a much larger super
regional shopping center and office development.
As shown in Figure 1, the block the proposed project site is on is served by four driveways, one on Grand
Avenue, two on Main Street and one on Central Avenue serving the top level of the two-level parking deck on
the block. These 4 driveways provide access to a 291 parking spaces for existing conditions (average of 73 per
driveway) and will provide access to 270 parking spaces (68 per driveway) after construction of the proposed
project, which will displace 21 parking spaces. Additionally, the block is served by 39 on -street parking spaces
on Grand Avenue and Main Street.
Overall, Southlake Town Square has 869,239 square feet of gross leasable area. The addition of 4,000 square
feet of retail space represent a 0.46% increase in leasable space at the Town Square.
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