Item 7A and 7B - Trip Generation Letter11
LCC' EncinErc3ine
November 26, 2019
Mr. Chris Paulus
Cooper and Company
1256 Main Street, Suite 240
Southlake, TX 76092
Re: Traffic Engineering Services — Proposed Development for Block 11 in Southlake, Texas
Dear Mr. Paulus:
ARIZONA
TEXAS
NEW MEXICO
OKLAHOMA
The number of trips generated by a development is a function of the type and quantity of the land use within
the development. The number of vehicle trips generated by a proposed development can be estimated based
on the trip generation rates and equations provided in the publication entitled Trip Generation Manual, Tenth
Edition, by the Institute of Transportation Engineers (ITE). Estimates of the number of trips generated by the
development alternatives were made for typical weekdays and AM and PM peak hours.
Table 1 shows a summary of the land use configurations and peak hour trips generated:
Table 1: Peak Hour Trip Generation Summary
Land Use Configuration
Daily Total
AM Peak
PM Peak
Retail / Restaurant (75,000 SF)
7,293
480
425
Medical Office (75,000 SF)
2,794
173
256
Multifamily (350 Units)
1,906
117
147
Internal capture reductions were used to estimate the trips generated by the mixed-use development
alternative. The detailed trip generation rates, directional splits and the estimated trips are shown for three
potential land use configurations in Tables 2 - 4.
We appreciated the opportunity to provide these traffic engineering services for you. Feel free to contact me
at (972) 248-3006 should you have any questions.
Sincerely,
-
Jo eph T. Short, P.E., PTOE
Project Engineer
Lee Engineering, LLC
TBPE Firm Registration # F-450
3030 LBJ Freeway, Suite 1660, Dallas, TX 75234
(972) 248-3006 office (972) 248-3855 fax I www.leeengineering.com Page 1 of 3
Table 2: Trip Generation Characteristics for Shopping Center & Restaurant Configuration on Block 11
Land Use
(ITE Land Use)
ITE Code
Variable
(X)
Average Weekday
AM Peak Hour
PM Peak Hour
Equation/Rates'
Shopping Center
820
kSF
Ln(T) = 0.68 Ln(X)+5.57
T = 0.5(X) + 151.78
Ln(T) = 0.74 Ln(X)+2.9
High -Turnover (Sit
Down) Restaurant
932
kSF
T = 112.18(X)
T = 9.94 (X)
T = 9.77 (X)
Directional Splits'
Shopping Center
820
kSF
50/50
62/38
48/52
High -Turnover (Sit
Down) Restaurant
932
kSF
50/50
55/45
62/38
Trips Generated
Land Use
Variable Amount
Variable
Total
Enter
Exit
Total
Enter
Exit
Total
Enter
Exit
Shopping Center
37.5
kSF
3,086
1,543
1,543
171
106
65
263
126
137
Internal Capture
-3
-
-
-32
-24
-8
-97
-57
-40
High -Turnover (Sit
Down) Restaurant
37.5
kSF
4,207
2,104
2,103
373
205
168
366
227
139
Internal Capture
-3
-
-
-32
-8
-24
-97
-40
-57
7 Total New Trips
7,293
3,647
3,646
480
279
201
435
256
179
'T = Trip Ends; kSF = 1,000 Square Feet;
' XX / yy = % entering vehicles / % exiting vehicles
3 Weekday Internal Capture rates are not provided by ITE.
Table 3: Trip Generation Characteristics for Medical -Dental Office Building Configuration on Block 11
Land Use
Variable
ITE Code
Average Weekday
AM Peak Hour
PM Peak Hour
(ITE Land Use)
(X)
Equation/Rates'
Medical -Dental
720
kSF
T = 38.42(X) — 87.62
Ln(T) = 0.89 Ln(X)+1.31
T = 3.39(X) + 2.00
Office Building
Directional Splits'
Medical -Dental
720
kSF
50/50
78/22
28/72
Office Building
Trips Generated
Variable
Variable
Land Use
Total
Enter
Exit
Total
Enter
Exit
Total
Enter
Exit
AmountMedical-Dental
75
kSF
2,794
1,397
1,397
173
135
38
256
72
184
Office Building
Total New Trips
2,794
1,397
1,397
173
135
38
256
72
184
'T = Trip Ends; kSF = 1,000 Square Feet;
Z XX / yy = % entering vehicles / % exiting vehicles
LEE menrac:vinc Page 2 of 3
Table 4: Trip Generation Characteristics for Multifamily Housing (Mid Rise) Configuration on Block 11
Land Use
Variable
(ITE Land Use)
ITE Code
(X)
Average Weekday
AM Peak Hour
PM Peak Hour
Equation/Rates'
Multifamily Housing
Dwelling
221
T = 5.45(X) — 1.75
Ln(T) = 0.98 Ln(X)-0.98
Ln(T) = 0.96 Ln(X)-1.00
(Mid Rise)
Units
Directional Splits'
Multifamily Housing
221
Dwelling
50/50
26/74
61/39
(Mid Rise)
Units
Trips Generated
ble
Variable
Land Use
Amo
Total
Enter
Exit
Total
Enter
Exit
Total
Enter
Exit
Multifamily Housing
Dwelling
(Mid Rise)
350
Units
1,906
953
953
117
30
87
147
90
57
Total New Trips
1,906
953
953
117
30
87
147
90
57
IT =Trip Ends;
'XX / YY = % entering vehicles / % exiting vehicles
LRC enana:vinc Page 3 of 3