05 C14-2025-0121 - 8901 E. U.S. 290 Highway - Zoning Traffic Analysis Memo — original pdf

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To: CC: From: Date: MEMORANDUM Michael J. Morgan, P.E.; HDR Engineering Matiur Rahman, P.E.; Kaylie Coleman, EIT; Bryan Golden, AICP, ATPW Manar Hasan, P.E., ATPW February 17th, 2026 Subject: 8901 E US 290 HWY SERVICE ROAD (TXB Springdale) – C14-2025-0121 The purpose of this memorandum is to present the findings of review of the “Zoning Tra(cid:431)ic Analysis – TXB Springdale”, prepared by HDR Engineering and reviewed by Austin Transportation and Public Works (ATPW). The site location is shown in figure 1 below. Figure 1: Site Location The purpose of this ZTA is to provide support for rezoning from GR-CO and LI-CO to LI. The proposed development is anticipated to develop a convenience store (7,755 SF) with gas station (21 vehicle fueling positions) on currently vacant land. 05 C14-2025-0121 - 8901 E. U.S. 290 Highway; District 11 of 5Date: Subject: February 17th, 2026 TXB Springdale ZTA Adjacent Roadway Characteristics: The development is proposing three (3) driveways - one (1) on US 290 eastbound frontage road, which has been approved by TxDOT, and two (2) on Springdale Road. The location of these driveways is shown in Figure 2 below. Figure 2: Proposed Driveway Locations As indicated on the area location map and the conceptual site plan (Figures 1 and 2), the TXB Springdale development is located west of Springdale Road and south of US 290 in Austin, TX. To adequately describe the significance of the roadways within the vicinity of the site, a further characterization is provided for each. Average daily tra(cid:431)ic estimates for these roadways were obtained from TxDOT Tra(cid:431)ic Count Database System (TCDS). The Austin Strategic Mobility Plan (ASMP) catalogs the classifications of these major roadways and documents proposed improvements. US 290: The ASMP classifies US 290 as a major highway (Level 4) in the vicinity of the site. Based on TxDOT historical daily tra(cid:431)ic counts, the estimated 2024 Average Daily Tra(cid:431)ic (ADT) on US 290 eastbound approach is approximately 19,300 vehicles per day (vpd). Springdale Road: The ASMP classifies Springdale Road as a four-lane divided road (Level 3), with a center lane for two-way left turns, in the vicinity of the site. Based on recent counts provided by the Page 2 of 5 05 C14-2025-0121 - 8901 E. U.S. 290 Highway; District 12 of 5 Date: Subject: February 17th, 2026 TXB Springdale ZTA city, the estimated 2024 ADT on Springdale Road is approximately 8,500 vpd. The posted speed limit is 45 mph. Tuscany Way: The ASMP classifies Tuscany Way as a four-lane divided road (Level 3), with a center lane for two-way left turns, in the vicinity of the site. Based on recent counts provided by the city, the estimated 2024 ADT on Tuscany Way is approximately 5,600 vpd. The posted speed limit is 35 mph. Trip Generation and Tra(cid:431)ic Analysis Unadjusted total trips per day, as well as the peak hour tra(cid:431)ic associated with the project, were estimated using recommendations and data contained in the Institute of Transportation Engineers Trip Generation Manual, 12th Edition. The proposed project is anticipated to generate approximately 4,270 unadjusted daily trips upon build-out. Based on TDM measures, an initial 6% reduction was applied to obtain adjusted trips. Following this adjustment, pass-by reductions were applied to account for the proposed gas station use, as the majority of site tra(cid:431)ic is already present on the roadway network. Based on ITE’s Trip Generation Manual, a 76% and 75% trip reduction was assumed for the development during the AM Peak and PM Peak period, respectively. Trip generation is shown in Table 1 below. Table 1: Trip Generation ITE Code 945 Land Uses Convenience Store / Gas Station Quantity Units 21 (5.5-10 KSF) Vehicle Fueling Positions Daily Trips 4,270 AM Peak Hour In 244 Out Total 487 243 PM Peak Hour In 221 Out Total 443 222 TDM (10% Reduction) Pass-by (76%/75% Reduction in AM/PM) Total Adjusted Daily Trips 427 2,921 922 24 167 53 24 166 53 49 333 105 22 149 50 22 150 50 44 299 100 Future Average Daily Tra(cid:431)ic (ADT) was estimated based on projected historical daily tra(cid:431)ic counts, assuming a 3.5% annual growth rate. Table 2 shows both the existing tra(cid:431)ic volumes as well as projected volumes on the road segments in the vicinity of the site. Table 2: Project Volume Analysis Roadway Segment ASMP Level Typical ADT* 2028 Forecasted ADT Springdale Road Tuscany Way 3 3 15,000-40,000 9,706 15,000-40,000 6,415 6,415 2028 Site Plus Forecasted ADT 10,149 *Based on the Austin Street Design Guide Page 3 of 5 05 C14-2025-0121 - 8901 E. U.S. 290 Highway; District 13 of 5 Date: Subject: February 17th, 2026 TXB Springdale ZTA A Tra(cid:431)ic Signal Warrant Analysis was conducted at the intersection of Springdale Road and Tuscany Way. A summary of the analysis is provided in Table 3. Table 3: Signal Warrant Analysis Intersection Year/Condition Warranted Warrants Met Notes Springdale Road and Tuscany Way 2026 Existing Warrant 3 – Peak Hour* 2028 Forecasted 2028 Site Plus Forecasted Warrant 3 – Peak Hour* Warrant 3 – Peak Hour* Warranted in PM peak Warranted in PM peak Warranted in PM peak *Volumes for PM peak hour warrants estimated based on 2024 existing peak hour traf(cid:976)ic counts (provided by the City) with a growth rate of 3.5%. Recommendations and Conclusions Austin Transportation and Public Works (ATPW) provides the following recommendations and conclusions for consideration: 1. The sites are subject to a 10% TDM trip reduction target and have proposed the following TDM measures. The applicant has the flexibility to substitute and/or add other relevant TDM measures as per the Transportation Criteria Manual (TCM) at the time of site plan as long as an overall trip reduction of 10% is achieved. The final determination of TDM measures proposed by the applicant will be determined during the Site Plan review process.  Contextual Trip Reduction Internal Trip Capture o o Transit Proximity  Amenities, Programs, and Incentives Measures o Transportation Management Association Membership o Designated Mobility Coordinator o Marketing and Information  Sustainable Modes Improvement Measures o Pedestrian Access and Connectivity Improvements o Bicycle Access and Connectivity o Transit Access and Connectivity 2. The City of Austin reserves the right to reevaluate any or all identified improvements associated with this case at the time of Site Plan review. 3. The ASMP ROW requirements and dedication will be reevaluated and completed at the Subdivision or Site Plan phase of development, whichever comes earlier. Page 4 of 5 05 C14-2025-0121 - 8901 E. U.S. 290 Highway; District 14 of 5 Date: Subject: February 17th, 2026 TXB Springdale ZTA 4. Street Impact Fee (SIF) Ordinances 20201220-061 and 20201210-062 have been adopted by City Council and are e(cid:431)ective as of December 21, 2020. The City has started collecting street impact fees with all building permits issued on or after June 21, 2022. For more information, please visit the City’s Street Impact Fee website. A Street Impact Fee calculation shall be performed at the time of building permit application. 5. This ZTA does not relieve a development of its Transportation Assessment or Full TIA requirement (if any) at time of site plan. 6. The ZTA currently represents a driveway scenario that could change during site plan review, subject to review and approvals by ATPW. Should you have any questions or concerns, please contact me at manar.hasan@austintexas.gov. Sincerely, Manar Hasan, P.E. Austin Transportation & Public Works Page 5 of 5 05 C14-2025-0121 - 8901 E. U.S. 290 Highway; District 15 of 5