W.G. Zimmerman Engineering, Inc.
7812 Edinger Avenue, Suite 302
Huntington Beach, CA 92647
(714) 799-1700 / (714) 333-4712 Fax
September 7, 2022
Colleen Doan, Community Development Director
Planning Department
City of Signal Hill
2175 Cherry Avenue
Signal Hill, CA 90755
Subject: AMERICAN UNIVERSITY HEALTH SCIENCES
TRAFFIC IMPACT ANALYSIS
LETTER OF CONCURRENCE
Dear Ms. Doan:
This Letter of Concurrence confirms that the American University Health Sciences Traffic Impact Analysis prepared by Linscott, Law, and Greenspan, Engineers, dated September 7, 2022, is in substantial conformance with the following national recognized institutions for traffic studies:
• Institute of Transportation Engineers “Trip Generation Manual, 10th Edition” • City of Signal Hill Traffic Impact Analysis Criteria
• City of Long Beach Traffic Impact Analysis Criteria
• California Environmental Quality Act (CEQA)
The study concludes the forecasting an additional 7 trips during AM peak and 7 trips during PM peak times and an overall daily trip of 65 during a “typical” weekday. These values are less than the threshold of significance. In addition, the key intersections are forecast to operate at acceptable LOS C or better during the weekday AM and PM peak hours. The City criteria is 40 trips added to any one intersection and a level of service lees than “D” to be determined as significant. Therefore, the traffic impact analysis demonstrates there will be less than significant traffic impacts with the proposed uses and expansion.
If you have questions regarding this Letter of Concurrence, please call me directly at (657) 845- 9500.
Sincerely,
Bill Zimmerman, P.E., T.E., PTOE
City Traffic Engineer
CC: Ryan Agbayani, Associate Planner
Attachment E