Traffic Study - Executive Summary

EXECUTIVE SUMMARY 
Traffic Impact Study 
The Base Industrial Park - North 
Litchfield Road and Super Sabre Street 
Glendale, Arizona 
 
 
March 3, 2022 
 
 
 
 
 
 
PREPARED FOR 
ViaWest Group 
2390 East Camelback Road, Suite 305 
Phoenix, AZ 85016 
 
 
 
PREPARED BY

INTELLIGENT TRANSPORTATION     ●     TRAFFIC     ●     TRANSPORTATION PLANNING     ●     TRAFFIC DATA COLLECTION 
 
EEXCUTIVE SUMMARY 
Traffic Impact Study 
The Base Industrial Park - North 
Litchfield Road and Super Sabre Street 
Glendale, Arizona 
 
 
 
March 3, 2022 
 
 
PREPARED FOR 
ViaWest Group 
2390 East Camelback Road, Suite 305 
Phoenix, AZ 85016 
 
 
PREPARED BY 
 
Phoenix, Arizona 85007 
 
 
   
UCG Project Number:  TR22003 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Conducted by: 
Sarah Simpson PhD, PE 
 
President

1 
I. EXECUTIVE SUMMARY 
United Civil Group (UCG) was retained by ViaWest Group to perform this Traffic 
Impact Study (TIS) for the planned The Base Industrial Park - North Development 
located south of Super Sabre Street and west of Litchfield Road in Glendale, Arizona.    
The site consists of approximately 84.6 acres of vacant land, Maricopa County 
Assessor’s parcels (501-58-001K, 501-58-002A, 501-58-003B, 501-58-004B, 501-58-
005D).  The site will be developed as seven warehouse buildings totaling 
approximately 1,188,900 square feet. It is assumed that the warehouse buildings will 
be constructed in one phase and occupied by year 2024.   
 
Two site driveways are planned for this development.  Both driveways are located on 
Litchfield Road and will access the employee parking areas and the truck yards. The 
two driveways for this site are planned as full movement driveways and will align with 
the existing streets of Stella Avenue and Claremont Street on the east side of 
Litchfield Road. 
 
Because the City of Glendale follows MCDOT traffic impact standards, this TIS has 
been performed in general conformance with the MCDOT Traffic Impact Study 
Manual dated May 2017, and per scoping information provided by City of Glendale 
Transportation Department, locally accepted standards, and industry practice.   
 
Per the MCDOT Traffic Impact Study Manual, this planned The Base Industrial Park - 
North Development is characterized as an Analysis Category I, small development 
which generates 100 or more peak hour trips but fewer than 499 peak hour trips.  As 
such, the study horizon years for this development are opening year, 2024, plus 3 
years after opening, 2027.  The minimum study area is defined as all site access 
driveways and all signal-controlled intersections within ¼ mile and/or major street 
intersections without signal control and driveways within 500 feet. 
 
Within these parameters and based on discussions with the City of Glendale, the 
intersections of Litchfield Road/Glendale Road, Litchfield Road/Super Sabre Street, 
Litchfield Road/Stella Avenue, Litchfield Road/Claremont Street, Litchfield 
Road/Bethany Home Road and Litchfield Road/Missouri Avenue are included in the 
study area.

2 
A.  Study Objectives 
This study is intended to investigate the existing and future traffic conditions and 
identify any potential roadway improvements necessary to serve the proposed 
development.  Major study objectives of this traffic report are as follows: 
 
• Analyze the existing study area intersections and site accessibility for the 
development. 
 
• Determine the site traffic volumes generated by the proposed development 
and their impacts on the surrounding study area and roadway network. 
 
• Where applicable, recommend safety, intersection and/or roadway 
improvements, sufficient to meet the needs of the development and adjacent 
roadway network due to the additional site generated traffic volumes. 
B.  Conclusions and Recommendations 
The site consists of approximately 84.6 acres of vacant land, Maricopa County 
Assessor’s parcels (501-58-001K, 501-58-002A, 501-58-003B, 501-58-004B, 501-58-
005D).  The site will be developed as seven warehouses with a total of approximately 
1,188,900 square feet. It is assumed that the warehouses will be constructed and 
occupied by year 2024. 
 
Two site driveways are planned for this development.  Both driveways will access the 
employee parking areas and the truck yards. The driveways for this site are planned as 
full movement driveways and align with the existing streets of Stella Avenue and 
Claremont Street on the east side of Litchfield Road. 
 
Access A is planned to be constructed as a full access and will align with the existing 
street, Stella Avenue, on the east side of Litchfield Road.   
 
Access B is planned to be constructed as a full access and will align with the existing 
street, Claremont Street on the east side of Litchfield Road. 
 
The forecasted trip generation was calculated based on values presented within the 
11th Edition of the ITE Trip Generation Manual.  On a weekday, after full build-out, the 
planned The Base Industrial Park - North Development will generate a total of 2,033 
daily trips with 202 trips occurring in the morning peak hour and 214 trips occurring in 
the evening peak hour.    
 
Using the forecasted total traffic volumes for years 2024 and 2027, the study area 
intersections and the proposed site accesses are anticipated to operate at acceptable 
levels of service, LOS D or better, during the morning and evening peak hours.

3 
Auxiliary lanes will be needed for the development. Right-turn deceleration lanes are 
warranted and recommenced on Litchfield Road at site accesses A and B.  A two way 
left turn lane exists on Litchfield Road adjacent to the site.  The two way left turn lane 
is sufficient to accommodate left turn traffic into accesses A and B. 
 
Proper intersection sight distance and sight triangles shall be provided and 
maintained at the site accesses and intersections of the proposed development to 
give drivers exiting the accesses a clear view of oncoming traffic.  The landscape and 
hardscape within the sight triangles must not obstruct the driver’s view of the 
adjacent travel lanes.  To ensure adequate sight distances and sight distance 
triangles, AASHTO’s A Policy on Geometric Design of Highways and Streets Section 
9.5 should be followed as appropriate when designing the accesses and landscaping.  
 
Based on the findings of this TIA, the following recommendations apply: 
 
• Construct a right turn deceleration lane on Litchfield Road for southbound 
traffic at Access A.  The right turn lane should provide 100 feet of storage with 
a 90-foot taper. 
• Construct a right turn deceleration lane on Litchfield Road for southbound 
traffic at Access B.  The right turn lane should provide 150 feet of storage with 
a 120-foot taper.

36 
XI. LIMITATIONS 
Our professional services have been performed using the degree of skill ordinarily 
exercised, under similar circumstances, by reputable transportation engineering firms 
practicing in this locality.  No other warranty, expressed or implied, is made. 
 
The contents of this report are intended for the sole use of the addressee and his/her 
designees. In completing this report, data was obtained from a variety of sources (i.e., 
City, County, State and Federal sources); United Civil Group has assumed these 
sources to be reliable and accurate.  Should deviations from this report be noted, this 
firm shall be contacted for review of the area of concern.  
 
A reasonable attempt was made to acquire recent traffic impact studies, traffic 
projections and/or data that may be helpful in more accurately projecting traffic 
volumes.  United Civil Group is not responsible for incorporating data made available 
after this document has been finalized. 
 
This report is issued with the understanding that it is the responsibility of the owner to 
see that its provisions are carried out or brought to the attention of those concerned.  
If any changes of the proposed project are planned, the conclusions and 
recommendations contained in this report shall be reviewed and the report shall be 
modified or supplemented, as necessary.

37 
X. SOURCES  
 
A Policy on Geometric Design of Highways and Streets, American Association of State 
Highway and Transportation Officials, 7th Edition, 2019. 
 
Engineering Design and Construction Standards, City of Glendale, 2015. 
 
Manual on Uniform Traffic Control Devices, Federal Highway Administration, MUTCD 
2009. 
 
Highway Capacity Manual, HCM, Transportation Research Board. 
 
Roadway Design Manual, MCDOT, 2020. 
 
Traffic Impact Study Manual, MCDOT, 2017. 
 
Trip Generation, 10th Edition, Institute of Transportation Engineers, 2017.

ArcGIS - 2021
not to scale
Figure 1: Vicinity Map
Industrial 82
Glendale
Victory
Base

Permission for commercial use granted by Google Earth
not to scale
Litchfield Rd
Glendale Ave
Figure 2: Aerial View
Super Sabre St
Bethany Home Rd
Missouri Ave
Stella Ln
Claremont St
Industrial 82
Glendale
Victory
Base

Figure 3: Site Plan
not to scale
ACCESS A
ACCESS B

429(975)
2(9)
13(12)
31(30)
774(519)
17(20)
Litchåeld Rd
4
416(966)
4(17)
9(6)
11(13)
768(486)
12(23)
Litchåeld Rd
1
Figure 4: Existing Conditions - Year 2022
1
381(516)
127(265)
263(236)
200(192)
353(463)
117(195)
Litchåeld Rd
Glendale Ave
2
2
215(56)
355(648)
57(206)
71(326)
348(54)
432(450)
Litchåeld Rd
Super Sabre St
STOP
3
3
4
Claremont St
5
7(4)
465(922)
20(45)
36(23)
2(0)
84(55)
0(4)
0(0)
3(16)
17(12)
729(536)
56(111)
Litchåeld Rd
Bethany Home Rd
STOP
STOP
5
6
Missouri Ave
STOP
6
not to scale
Stella Ln
STOP
540(1018)
20(5)
11(7)
89(55)
779(678)
108(109)
Litchåeld Rd
LEGEND
AM(PM) Peak Hour Traffic Volume
XX(XX)
5
3
2
1
4
6
Litchfield Rd
Glendale Ave
Super Sabre St
Bethany Home Rd
Missouri Ave
Stella Ln
Claremont St
SPEED
40
LIMIT
SPEED
25
LIMIT
SPEED
25
LIMIT
SPEED
25
LIMIT
SPEED
35
LIMIT

LEGEND
X%
AM(PM) Peak Hour Traffic Volume
Trip Distribution
XX(XX)
Figure 5: Site Generated Traffic and Trip Distribution
3
21(8)
41(16)
0(0)
0(0)
0(0)
0(0)
6(21)
0(0)
9(31)
32(12)
13(41)
0(0)
5
0(0)
27(92)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
94(36)
0(0)
Citrus Rd
Bethany Home Rd
not to scale
1
39(15)
0(0)
0(0)
23(9)
12(39)
7(23)
Litchåeld Rd
Glendale Ave
Litchåeld Rd
Stella Ln
4
41(16)
9(31)
0(0)
0(0)
0(0)
0(0)
13(41)
0(0)
18(61)
62(24)
32(12)
0(0)
Litchåeld Rd
Claremont St
6
Missouri Ave
27(92)
0(0)
0(0)
0(0)
94(36)
0(0)
Litchåeld Rd
5
3
2
1
4
6
Litchfield Rd
Glendale Ave
Super Sabre St
Bethany Home Rd
Missouri Ave
Stella Ln
Claremont St
2
Super Sabre St
0(0)
62(24)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
19(62)
0(0)
Litchåeld Rd
ACCESS A
ACCESS B
Industrial 82 Glendale
60%
25%
15%

LEGEND
AM(PM) Peak Hour Traffic Volume
XX(XX)
483(1084)
2(9)
13(12)
31(30)
859(582)
17(20)
Litchåeld Rd
4
468(1075)
4(17)
9(6)
11(13)
852(546)
12(23)
Litchåeld Rd
5
3
2
1
4
6
Litchfield Rd
Glendale Ave
Super Sabre St
Bethany Home Rd
Missouri Ave
Stella Ln
Claremont St
Figure 7: Background Traffic - Year 2027
1
424(584)
142(310)
299(264)
221(212)
401(516)
129(215)
Litchåeld Rd
Glendale Ave
2
Super Sabre St
3
Claremont St
5
7(4)
522(1026)
22(50)
40(25)
2(0)
93(61)
0(4)
0(0)
3(16)
17(12)
809(601)
62(123)
Litchåeld Rd
Bethany Home Rd
6
Missouri Ave
not to scale
Stella Ln
605(1132)
22(6)
12(8)
98(61)
864(758)
119(120)
Litchåeld Rd
215(56)
392(715)
3(14)
11(5)
59(40)
9(8)
57(206)
20(68)
71(326)
348(54)
477(497)
4(9)
Litchåeld Rd

Industrial 82 Glendale
Figure 9: Total Traffic - Year 2027
3
21(8)
509(1091)
4(17)
9(6)
0(0)
11(13)
6(21)
0(0)
9(31)
32(12)
865(587)
12(23)
5
7(4)
549(1118)
22(50)
40(25)
2(0)
93(61)
0(4)
0(0)
3(16)
17(12)
903(637)
62(123)
Citrus Rd
Bethany Home Rd
not to scale
1
463(599)
142(310)
299(264)
244(221)
413(555)
136(238)
Litchåeld Rd
Glendale Ave
Litchåeld Rd
Stella Ln
4
41(16)
492(1115)
2(9)
13(12)
0(0)
31(30)
13(41)
0(0)
18(61)
62(24)
891(594)
17(20)
Litchåeld Rd
Claremont St
6
Missouri Ave
632(1224)
22(6)
12(8)
98(61)
958(794)
119(120)
Litchåeld Rd
5
3
2
1
4
6
Litchfield Rd
Glendale Ave
Super Sabre St
Bethany Home Rd
Missouri Ave
Stella Ln
Claremont St
LEGEND
AM(PM) Peak Hour Traffic Volume
XX(XX)
2
Super Sabre St
215(56)
454(739)
3(14)
11(5)
59(40)
9(8)
57(206)
20(68)
71(326)
348(54)
496(559)
4(9)
Litchåeld Rd
ACCESS A
ACCESS B