Staff Bios

Dalene J. Whitlock
Stephen Weinberger
Mark Spencer
Allan G. Tilton
Zack Matley
Mary Jo Yung
Don Costa
Tony Henderson
Chris Helmer

Zachary Matley, AICP
Associate

Mr. Matley focuses on projects that require a creative approach to solving circulation problems.  He often manages projects that have an emphasis on mixing various transportation modes, that reallocate roadway space to improve pedestrian and bicycle circulation while maintaining traffic flow, that involve the analysis and design of modern roundabouts, and that tackle the transportation and parking issues associated with mixed-use developments and downtown revitalization.  Zack's background and experience bring together the planning and engineering disciplines, providing an understanding of transportation policies as well as the operational and design aspects of transportation facilities.

• American Institute of Certified Planners - AICP Registration No. 16651
• B.S. in Environmental Policy Analysis & Planning - University of California, Davis, 1995
• M.S. in City and Regional Planning - California Polytechnic State University, San Luis Obispo, 1998
• M.S. in Transportation Engineering - California Polytechnic State University, San Luis Obispo, 1998
• American Planning Association (APA) - Member
• Institute of Transportation Engineers (ITE) - Member

Zack loves to spend personal time with his family.  He and his wife are always looking for new places to travel with their daughters, from weekend mini-road trips to work-play getaways (always looking for roundabouts to visit along the way).  Weekends often find Zack and his wife working on their 1920's Petaluma bungalow.  The family also spends as much time as they can having fun, working cows, and fixing fences at the family's cattle ranch in Northeastern California.