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Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 1 June 5, 2023 Mr. James Neal Partner Hinkson Company, LLC 5050 N 40th St, Suite 350 Phoenix, AZ 85018 Re: SWC 51st Ave/Glendale Ave Starbucks | Modified Traffic Impact Statement SWC 51st Ave/Glendale Ave, Glendale, AZ APN 146-06-054E 1 INTRODUCTION This Modified Traffic Impact Statement (TIS) was prepared for Hinkson Company, LLC for the 51st Ave/Glendale Ave Starbucks (Project) located on the southwest corner of 51st Avenue and Glendale Ave in Glendale, Arizona (City). The Project will consist of 1,302 square feet (SF) of gross floor area (GFA) of “Coffee/Donut Shop with Drive- Through Window and No Indoor Seating” land use as shown in the site plan (Attachment A). The Project is forecast to generate approximately 46 AM peak hour trips, 17 PM peak hour trips, and 179 daily trips based on calculations performed using the Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition. The site will generate fewer than 100 peak hour trips, which would warrant a TIS scope of work; however, the City is requiring that a right-turn lane warrant analysis be performed for the driveway on the west side of the Project (Glendale Avenue/Driveway A) that currently does not have a right-turn lane. Therefore, a modified TIS has been prepared to satisfy the City’s requirements. The purpose of this study was to document existing conditions and the proposed Project site plan, as well as calculate anticipated site-generated trips and turn lane warrants associated with the Project. 2 PROJECT BACKGROUND The Project site is located on the southwest corner of 51st Avenue and Glendale Avenue in Glendale, Arizona, as shown in Figure 1. The Project site is a parking lot for an existing shopping center. The site is bounded by a Chevron Gas Station to the east, a TitleMax Title Loans to the west, a shopping center to the south, and Glendale Avenue to the north. The Project site access will be primarily achieved through one full-access driveway and one right-in/right-out access driveway off Glendale Avenue. The anticipated Project opening year is 2023. Approved As Submitted Date: 11/02/2023 Time: 1:06:57 PM Tony S. Abbo, P.E., PTOE City Traffic Engineer City of Glendale - Transportation Department Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 2 Figure 1: Project Location 3 EXISTING CONDITIONS 3.1 Existing Roadways Glendale Avenue is a paved, east-west 5-lane roadway with two through lanes in each direction and a two-way left-turn lane (TWLTL). The existing cross-section includes pavement, curb, gutter, and sidewalk on both sides of the roadway. The posted speed limit is 35 mph adjacent to the Project site. Glendale Avenue is classified as an Urban Minor Arterial based on the ADOT Statewide Federal Functional System Online Map. Glendale Avenue is classified as an Arterial based on the City of Glendale Transportation Plan (November 2017). 51st Avenue is a paved, north-south 6-lane roadway with three through lanes in the northbound direction, two through lanes in the southbound direction, and divided by a TWLTL. The existing cross-section includes pavement, curb, gutter, and sidewalk along both sides of the roadway. The posted speed limit on 51st Avenue is 40 mph. 51st Avenue is classified as an Urban Principal Arterial based on the ADOT Statewide Federal Functional System Online Map 51st Avenue is classified as an Arterial based on the City of Glendale Transportation Plan (November 2017). Project Site Glendale Avenue 51st Avenue Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 3 3.2 Existing Intersections 51st Avenue and Glendale Avenue is a four-leg signalized intersection. The northbound approach consists of one dedicated left-turn lane, two through lanes, and one shared through/right-turn lane; the southbound approach consists of one dedicated left-turn lane, one through lane, and one shared through/right-turn lane; the eastbound approach consists of one dedicated left-turn lane, one through lane, and one shared through/right- turn lane; the westbound approach consists of one dedicated left-turn lane, two through lanes, and one dedicated right-turn lane. 3.3 Existing Traffic Volumes AM and PM peak hour turning movement volumes were collected between 7:00 to 9:00 a.m. and 4:00 to 6:00 p.m. on Thursday, December 15, 2022, at the intersection of: Glendale Ave/Driveway A The volumes are shown in Figure 2. The traffic count data sheets are provided in Attachment B. 4 PROPOSED SITE CONDITIONS 4.1 Site Access, Circulation and Parking Access to the Project will be provided via one full-access driveway and one right-in/right-out access driveway off Glendale Avenue. The eastern Project driveway (Driveway B) is currently a full-access driveway; however, the City has stipulated that the driveway shall be converted to right-in/right-out access only. Driveway B also has an existing eastbound right-turn lane into the site. There are no sight distance concerns at the site access driveway locations. There is one drive-through lane present on the site. The drive-through entrance is on the northwest corner of the site and continues along the south and east side of the building in a counterclockwise fashion. The Project will provide 17 parking spaces, including 1 accessible parking space. 4.2 Trip Generation The Project will consist of 1,302 SF of GFA and 1 drive-through lane of “Coffee/Donut Shop with Drive-Through Window and No Indoor Seating” land use (ITE Trip Generation Manual, 11th Edition). The Project is forecast to generate approximately 46 AM peak hour trips, 17 PM peak hour trips, and 179 daily trips. The calculated trip values are shown in Table 1. The complete Project trip generation calculation sheet is shown in Attachment C. Table 1: Project Trip Generation Land Use ITE Code1 Size Unit AM Peak Hour PM Peak Hour Daily Volume In Out Total In Out Total Coffee/Donut Shop with Drive-Through Window and No Indoor Seating 938 1 Drive-Through Lanes 23 23 46 8 9 17 179 Total Trips 23 23 46 8 9 17 179 1. Land Use Code (LUC), per ITE Trip Generation Manual, 11th Edition. 4.3 Trip Distribution and Assignment The site-generated trips were distributed across the study area roadway network based on access to surrounding residential areas and other attractors using the percentages shown in Table 2. Site-generated trips are shown in Figure 3 respectively. Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 4 Table 2: Trip Distribution Distribution Roadway Segment From Site To Site Glendale Ave East of 51st Ave 20% 20% Glendale Ave West of 51st Ave 30% 30% 51st Ave North of Glendale Ave 20% 20% 51st Ave South of Glendale Ave 30% 30% Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 5 Figure 2: Existing Volumes Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 6 Figure 3: Site-Generated Trips Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 7 5 TRAFFIC FORECASTING Non-site traffic forecasting accounts for ambient growth of vehicle trips that occur on the roadway network adjacent to the Project site. This includes trips along Glendale Avenue. The existing traffic volumes were increased with a compounding growth rate of 2.0% per year to obtain the non-site traffic volumes. Total traffic volumes were obtained by adding the estimated Project trips to the non- site traffic volumes. These are shown in Figure 4 and Figure 5, respectively. Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 8 Figure 4: 2023 Non-Site Volumes Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 9 Figure 5: 2023 Total Site Volumes Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com Page 10 6 TURN LANE WARRANTS A right turn lane warrant analysis was performed for the western Project driveway (Driveway A) and was evaluated according to the MCDOT Roadway Design Manual Section 7.15. The results are summarized in Table 3. Table 3: Turn Lane Warrant Analysis No. Intersection Movement AM Peak Hour PM Peak Hour Advancing Volume Right- Turn Volume Right- Turn Warrant Advancing Volume Right- Turn Volume Right- Turn Warrant Met? Met? Existing Conditions Glendale Ave/Driveway A EBR 663 4 NO 706 16 NO 2023 Non-Site Traffic Conditions Glendale Ave/Driveway A EBR 676 4 NO 720 16 NO 2023 Total Traffic Conditions Glendale Ave/Driveway A EBR 679 8 NO 721 17 NO As shown in Table 3, an eastbound right-turn lane is not warranted at Glendale Ave & Driveway A. 7 CONCLUSIONS The following conclusions are made based on the findings of the Project TIS: 1. The Project is expected to generate approximately 46 AM peak hour, 17 PM peak hour, and 179 daily trips. 2. The Project is not expected to have a significant impact to the surrounding roadway infrastructure as it is expected to generate fewer than 100 external peak hour trips. 3. There are no sight-distance concerns at the existing Project driveways. 4. An eastbound right-turn lane was not found to be warranted at Glendale Ave & Driveway A. 8 RECOMMENDATIONS In summary, the proposed Project is expected to have no significant impact on the adjacent roadway network. The following recommendations were developed based on the findings of the Project TIS: 1. Design and construction of the proposed Project improvements should conform to the City’s design guidelines, as applicable. Sincerely, Greenlight Traffic Engineering, LLC Scott Kelley, PE, PTOE Principal/Senior Project Manager scottk@greenlightte.com (602) 499-1339 Attachments: A – Starbucks Site Plan B – Traffic Counts C – Trip Generation Calculations D – Response to Comments Greenlight Traffic Engineering, LLC S 14050 N 83rd Ave, Ste 290, Peoria, AZ 85381 T (602) 499-1339 W greenlightte.com ATTACHMENTS DRIVEWAY A DRIVEWAY A W GLENDALE AVE W GLENDALE AVE (303) 216-2439 www.alltrafficdata.net Location: 1 DRIVEWAY A & W GLENDALE AVE AM Thursday, December 15, 2022 Date: Peak Hour - Motorized Vehicles Peak Hour - Bicycles Peak Hour - Pedestrians Traffic Counts - Motorized Vehicles Note: Total study counts contained in parentheses. Peak Hour: 07:30 AM - 08:30 AM Peak 15-Minutes: 07:45 AM - 08:00 AM 0 0 466 666 8 11 668 465 0.86 N S E W 0.00 0.89 0.75 0.87 () () (786) (1,291) (787) (1,296) (23) (27) 0 0 0 0 459 7 4 663 0 0 1 0 5 0 3 0 W GLENDALE AVE W GLENDALE AVE DRIVEWAY A DRIVEWAY A 0 1 3 1 N S E W 0 1 1 2 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 1 N S E W 0 0 1 0 0 1 0 1 0 0 0 0 Left Thru Right Total Eastbound Interval Start Time Rolling Hour West East South North Pedestrian Crossings U-Turn Westbound Northbound Southbound Left Thru Right U-Turn Left Thru Right U-Turn Left Thru Right U-Turn 7:00 AM 0 1 0 0 0 0 0 0 166 0 0 63 233 1 0 1 0 1,067 1 0 2 0 7:15 AM 0 2 0 0 0 0 0 0 183 0 1 66 254 0 0 0 0 1,128 1 0 1 0 7:30 AM 0 2 0 0 0 0 1 0 144 0 2 96 247 0 1 0 0 1,142 0 0 2 0 7:45 AM 0 1 0 0 0 0 0 0 200 0 0 131 333 1 0 2 0 1,137 0 0 1 0 8:00 AM 0 1 0 0 0 0 0 0 165 0 1 125 294 0 0 0 0 1,038 2 0 0 0 8:15 AM 0 1 0 0 0 0 0 0 154 0 4 107 268 0 0 1 0 2 0 0 0 8:30 AM 0 2 0 0 0 0 0 0 151 0 1 83 242 0 1 0 0 4 0 1 0 8:45 AM 0 4 0 0 0 0 0 0 119 0 5 101 234 0 0 1 0 3 0 2 0 Count Total 0 9 0 13 2,105 0 0 0 0 14 0 772 14 0 1,282 0 1 0 5 2 2 Peak Hour 1 0 663 0 7 459 0 5 0 0 0 0 1,142 4 0 3 0 1 1 3 0 DRIVEWAY A DRIVEWAY A W GLENDALE AVE W GLENDALE AVE (303) 216-2439 www.alltrafficdata.net Location: 1 DRIVEWAY A & W GLENDALE AVE PM Thursday, December 15, 2022 Date: Peak Hour - Motorized Vehicles Peak Hour - Bicycles Peak Hour - Pedestrians Traffic Counts - Motorized Vehicles Note: Total study counts contained in parentheses. Peak Hour: 04:30 PM - 05:30 PM Peak 15-Minutes: 04:30 PM - 04:45 PM 0 0 968 737 58 31 722 980 0.97 N S E W 0.00 0.97 0.70 0.91 () () (1,906) (1,457) (1,929) (1,434) (114) (68) 0 0 0 0 950 15 16 706 0 3 0 0 30 0 28 0 W GLENDALE AVE W GLENDALE AVE DRIVEWAY A DRIVEWAY A 0 0 13 1 N S E W 0 0 8 5 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N S E W 0 0 0 0 0 0 0 0 0 0 0 0 Left Thru Right Total Eastbound Interval Start Time Rolling Hour West East South North Pedestrian Crossings U-Turn Westbound Northbound Southbound Left Thru Right U-Turn Left Thru Right U-Turn Left Thru Right U-Turn 4:00 PM 0 6 0 0 0 0 0 0 187 0 7 227 434 0 1 0 0 1,719 2 0 5 0 4:15 PM 0 7 0 0 0 0 0 0 158 0 5 235 413 0 1 4 0 1,717 2 0 6 0 4:30 PM 0 8 0 0 0 0 0 0 187 0 3 240 450 0 0 1 0 1,748 4 0 8 0 4:45 PM 0 12 0 0 0 0 0 0 156 0 2 239 422 0 0 7 0 1,715 3 0 10 0 5:00 PM 0 5 0 0 0 0 0 0 168 1 4 245 432 0 0 1 0 1,735 3 0 6 0 5:15 PM 0 5 0 0 0 0 0 0 195 2 6 226 444 1 0 4 0 6 0 4 0 5:30 PM 0 12 0 0 0 0 1 0 176 1 5 214 417 1 0 2 0 4 0 4 0 5:45 PM 0 11 0 0 0 0 0 0 178 0 8 236 442 0 0 2 0 4 0 5 0 Count Total 0 48 0 28 3,454 0 0 0 0 66 0 1,862 40 4 1,405 0 1 0 21 2 2 Peak Hour 0 0 706 3 15 950 0 30 0 0 0 0 1,748 16 0 28 0 1 0 13 0 Trip Generation Analysis Project: 221137 HINK 51st Ave+Glendale Ave Starbucks Modified Traf Stmt Originator: Maria Jimenez Checked: Collette Frohlich, PE Date: Data Source: Site Plan Reference Manual: ITE Trip Generation Manual, 11th Edition Time Period: Weekday (Monday - Friday), Peak Hour of Generator Setting/Location: General Urban/Suburban AM Calc PM Calc ADT Calc AM PM Land Use LUC Units Size In Out Total In Out Total Total In Out Total In Out Total ADT Coffee/Donut Shop with Drive Through and No Indoor Seating 938 Drive-Through Lanes 1.00 50% 50% 45.71 50% 50% 17.15 179 23 23 46 8 9 17 179 BASE TRIP GENERATION 23 23 46 8 9 17 179 December 15, 2022