490 Mendocino Avenue, Suite 201 Santa Rosa, CA 95401 707.542.9500 w-trans.com SANTA ROSA • OAKLAND
November 16, 2022
Mr. Alex Wignall
Pura Vida Recovery Services
130 Stony Point Road, Suite J
Santa Rosa, CA 95401
Trip Generation Assessment for the Proposed 5761 Mountain Hawk Road Care Facility
Dear Mr. Wignall;
As requested, W-Trans has prepared a trip generation assessment for the proposed 24-bed care facility to be located at 5761 Mountain Hawk Road in the City of Santa Rosa. It is understood that the proposed project would be located within an existing build ing, converting space that is currently occupied by seven two-bedroom apartments. The onsite residents receiving care would not drive. The facility would be staffed 24 hours per day by six to eight staff during each of three shifts.
The anticipated trip generation for the proposed project was estimated using standard rates published by the Institute of Transportation Engineers (ITE) in Trip Generation Manual, 10 th Edition, 2017 for “Assisted Living” (ITE LU
#254). These rates were determined to best capture the po tential auto travel characte ristics associated with the project since they reflect facilities that house a non-driving population and are staffed 24 hours per day. Because the project would be located in space that is currently occupied by seven apartment units, th e trip generation potential of those units was also considered. Trip rates for a “Multifamily Housing (Low-Rise) Not Close to Rail T r a n s i t ” l a n d u s e ( I T E L U # 2 2 0 ) w e r e a p p l i e d t o e s t i m ate the trips that would be removed from the existing apartments.
The expected trip generation potential for the proposed project is indicated in Table 1, with deductions taken for trips made to and from the existing apartment units, which will cease upon completion of the project. The proposed project is expected to generate an average of 62 trips per day, including four trips during the a.m. peak hour and six during the p.m. peak hour. After deductions are taken into account, the project would be expected to generate 15 new trips on a daily basis, including one during the morning peak hour and two during the evening peak hour; these new trips represent the net increase in traffic associated with the project compared to existing volumes.
Table 1 – Trip Generation Summary
Land Use Units Daily AM Peak Hour PM Peak Hour
Rate Trips Rate Trips In Out Rate Trips In Out
E x i s t i n g
Apartments -7 du 6.74 -47 0.40 -3 -1 -2 0.51 -4 -2 -2
Proposed
Care Facility 24 beds 2.60 62 0.18 4 3 1 0.24 6 2 4
Total 15 1 2 -1 2 0 2
Note: du = dwelling unit
The single added a.m. peak hour trip and two added p.m. peak hour trips estimated to be added by the proposed project would have an imperceptible ef fect on traffic operation and would be expected to result in no adverse Attachment 6
Mr. Alex Wignall Page 2 November 16, 2022
transportation effects. The publication Guidance for the Preparation of Traffic Operational Analysis , City of Santa Rosa Transportation and Public Works Department, July 2019, indicates that operational analyses are required for projects generating over 50 peak hour trips and/or 250 dail y trips. Because traffic associated with the proposed project would fall considerably below these levels, no further analysis is required.
Thank you for giving W-Trans the opportunity to provide these services. Please call if you have any questions.
Sincerely,
Zachary Matley, AICP
Principal
JZM/SRO621.L1