HomeMy WebLinkAbout8.1 Attch 6 Traffic Impact Assessment r1,~ O~ bU~~
~ Public Works Department
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~ MEMORANDUM
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DATE: July 15, 2010
TO: Erica Fraser, Senior Planner
FROM: Jaimee Bourgeois, Senior Civil Engineer (Traffic)
SUBJECT: Traffic Impact Assessment for SierralTrinity Business Park Rezoning
The Sierra/Trinity Business Park is located at 6701 Sierra Court. The site contains 12 buildings totaling
184,000 square feet.
Currently, the Sierra/Trinity Planned Development Zoning District allows for the following uses:
• Manufacturing or assembly;
• Research assembly;
• Industrial support (repair and/or maintenance of industrial parts);
• Research laboratories and facilities,
• Wholesale;
• Printing; and
• Ancillary office uses.
The allowed uses are more restrictive than the surrounding area, which is primarily zoned M-1, Light
Industrial Zoning District. While several of the buildings are designed for traditional light-industrial flex
space with office in the front and warehouse space in the rear, the site is overall more accommodating
of traditional office uses, which are currently not allowed. The design of the Business Park is more
consistent with office space since ample parking is provided and many of the buildings do not contain
high ceilings or roll-up doors.
The M-P, Industrial Park Zoning District is more consistent with the design of the Sierra/Trinity Business
Park. This zoning district allows a wide variety of uses including light industrial, office, indoor
recreational facilities, community facilities and other uses which are consistent with an Industrial Zoning
District. As such, staff is reviewing the opportunity to rezone the Business Park from the current
Planned Development Zoning District with restrictive uses to something similar to an M-P, Industrial
Park Zoning District, so that the unoccupied buildings can be more easily leased.
Table 1 presents a summary of the trip generation comparison between the current zoning and the
proposed zoning using trip generation estimates published in the Institute of Transportation Engineers
(ITE) Trip Generation manual (8th Edition).
Att~chmen~£ ~
TABLE 1
Trip Generation Comparison
Land Use Cate or Dail Tri s AM Peak Hour Tri s PM Peak Hour Tri s
Existin Zonin
General Li ht Industrial 1,273 128 106
Pro osed Zonin
Industrial Park 1,660 165 184
Difference + 387 + 37 + 78
Notes:
~ General Light Industrial ITE Land Use Code 110 (regression equations used).
Industrial Park ITE Land Use Code 130 (regression equations used).
The existing zoning was assumed to most closely match the General Light Industrial ITE Land Use
category, and the proposed zoning was assumed to most closely match the Industrial Park ITE Land
Use Category. As shown in Table 1, implementation of the proposed zoning could result in the
additional trip generation of approximately 387, 37, and 78 more daily, AM peak hour and PM peak
hour trips, respectively.
Based on the results of intersection capacity analyses recently conducted for major intersections in the
area, such as along Dublin Boulevard and Dougherty Road, adequate capacity is available to
accommodate the potentially g.reater trip generation associated with a more intense zoning. In
conclusion, the proposed zoning change would not have any significant impacts on the transportation
network.
If you have any questions, please let me know.
I
G:\DEVELOPMENT, PRIVATE\MISC\Memo for Sierra Trinity Business Park_071510.doc