Item 7 - TIA Threshold Worksheet and Trip Generation Traffic Impact Analysis
THRESHOLD WORKSHEET
Title of Plan Magnolia Southlake Case No.
Driveway Ordinance No. 634 requires that a Traffic Impact Analysis (TIA) be submitted with development applications (zoning,
concept plan, site plan, etc.) if the proposed development exceeds one or more of the three threshold criteria listed below. No
development applications will be accepted unless accompanied by a TIA. For those projects that do not exceed any of the
three criteria, a TIA Threshold Worksheet must be submitted and approved by the City Engineer in lieu of the required TIA prior
to submittal of the development application. Please describe in detail your evaluation of each criteria listed below. Additional
sheets may be attached if necessary.
Criteria#1:The development exceeds parking 100 spaces average per driveway.
No, the development will have 2 driveways, with 106 total parking spaces.
Criteria#2:Any driveway in the development is projected to serve 1000 or more vehicles per day.*
The total estimated daily trips for the entire development is 236 trips. This is well below the thresheold.
Criteria#3:Any driveway in the development is projected to serve 100 ingress vehicles or more in the design hour.*
The peak hourly trips is 33 vehicle trips. This again is well below the threshold.
* Unless approved otherwise, trip generation rates should be based on the most recent edition of the Institute of Transportation
Engineers (ITE) Trip Generation Manual.
I hereby certify that this project does not exceed any of the three threshold criteria shown above and therefore the development
would not warrant a TIA in accordance with Section 3.4 of the Driveway Ordinance No. 634 of the City of Southlake.
Name Clay Cristy Registration No. 109800 Date 03/14/2021
Firm �Claymoore Engineering Phone 817.281.0572 Fax
For City Use Only: The requirement for a Traffic Impact Analysis with this submittal is hereby waived:
Name:
Title:
Date:
Description/ITE Code ITE Vehicle Trip Generation Rates Expected Total Generated Trips Total Distribution of Generated Trips
Units (peak hours are for peak hour of adjacent street traffic unless highlighted Units
Weekday I AM I PM Pass-By AM In AM Out PM In I PM Out Daily AM Hour PM Hour AM In AM Out Pass-By PM In PM Out Pass-By
General Office 710 KSF' 11.011 1.55 1.49 = 88% 12% 17% 83% 21.4 236 33 32 29 4 0 5 26 1 0