My WebLink
|
Help
|
About
|
Sign Out
3_Exhibit B
City of Pleasanton
>
BOARDS AND COMMISSIONS
>
PLANNING
>
AGENDA PACKETS
>
2020 - PRESENT
>
2023
>
02-22
>
3_Exhibit B
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
2/16/2023 1:15:46 PM
Creation date
2/16/2023 1:06:44 PM
Metadata
Fields
Template:
CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
2/22/2023
DESTRUCT DATE
15Y
Document Relationships
3
(Message)
Path:
\BOARDS AND COMMISSIONS\PLANNING\AGENDA PACKETS\2020 - PRESENT\2023\02-22
Jump to thumbnail
< previous set
next set >
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
248
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
Ramboll - Stoneridge Mall Residential Project <br />158850326.2 <br />7/11 <br />Confidential <br />the average non-peak hourly traffic to represent nighttime traffic. In addition, it was assumed that the <br />percentages of truck traffic are the same for both day and night. The results are summarized in Table 4. <br />Table 4. Traffic Sound Levels at Outdoor Activity Areas <br />Outdoor Activity Location Predicted <br />Ldn (dBA) <br />Central Courtyard 53 <br />Western Courtyard 54 <br />Central Rooftop Deck on Level 5 65 <br />Northeast Rooftop Deck on Level 4 71 <br />As shown in Table 4, the limit of 65 dBA Ldn is exceeded for the northeast rooftop deck. The primary <br />sources of noise are I-580 and I-680. <br />Additional Measure <br />To reduce the traffic noise to an Ldn sound level at or below 65 dBA Ldn at the northeast rooftop deck on <br />Level 4, a rooftop barrier is recommended to shield the northeast rooftop deck from traffic noise. The <br />barriers should run the length of the east and north edges of the rooftop deck, be at least 6 feet high, <br />have a minimum surface weight of 3 psf, and have no cracks or gaps. Glass or another transparent <br />material can be used. With the barrier in place, the results of the model show a sound level 65 dBA Ldn <br />at the northeast rooftop deck Level 4. <br />4. Assessment of Noise from Stationary (Non-transportation) Sources in the <br />Vicinity of the Project (MM 4.J-6a) <br />Pursuant to the referenced SEIR, specifically the prescribed Mitigation Monitoring and Reporting Program, <br />the following is a condition of approval for the subject project. <br />MM 4.J-6a – For all of the potential sites for rezoning the City shall require site-specific <br />acoustical assessments to determine noise exposure, impact, and mitigation regarding non- <br />transportation sources. Noise exposure shall be mitigated to satisfy the applicable City Code <br />criterion using appropriate housing site design. <br />The SEIR addresses the impact of off-site activities on the rezoning sites, noting that this measure was <br />imposed in part because “some [rezoning sites] adjacent to industrial/commercial areas could be subject <br />to loading noise and late or 24-hour operations noise.” The SEIR states: <br />The City of Pleasanton Municipal Code limits noise exposure from stationary/non- <br />transportation sources to 60 dB Lmax at any point outside of the property plane, unless <br />otherwise specified in the Municipal Code (Section 9.04.030). Sources of noise that do not <br />produce noise exposure in excess of 70 dB Lmax/Leq at a distance of 25 feet are exempt <br />from this criterion between the hours of 8:00 a.m. and 8:00 p.m. Monday through Friday <br />(except holidays) and 10:00 a.m. and 6:00 p.m. on Sundays and holidays.
The URL can be used to link to this page
Your browser does not support the video tag.