Principal

Ian Barnes
Walnut Creek Office

Jason Miller
Denver Office

Hallet Modi
Oakland Office

Chelsea Richer
Los Angeles Office

Claude Strayer
San Diego Office

Dana Weissman
San Francisco Office
Senior Associate

Andy Kosinksi
Oakland Office
Associate

Tim Baird
Salt Lake City Office

Meara Breuker
Walnut Creek Office

Natalie Chyba
Los Angeles Office

Taylor McAdam
San Francisco Office

Patrick Picard
Denver Office

Judy Schaefer
Walnut Creek Office

Magali Sourbes
Corporate Office

Diwu Zhou
Long Beach Office
Senior Engineer/Planner

Michael Adamson
Tacoma Office

Alidad Ahmadi
San Diego Office

Sonia Anthoine
Sacramento Office

Emily Chen
San Francisco Office

Tino Jonga
Seattle Office

Jasper Lee
San Jose Office

Dongyang Lin
Los Angeles Office

Sydney Provan
Denver Office

Shane Russell
San Diego Office

Kathrine Skollingsberg
Salt Lake City Office

Mark Soendjojo
San Jose Office

Zoey Zhang
San Francisco Office
Senior Technician

Shawn Levy
Corporate Office
Senior Business Services Positions

Becca Hittner
Orlando Office

Maria Nguyen
Long Beach Office
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Newly Promoted Firm Principals
Defined by our culture of empowerment and investment in the development of every employee, we are dedicated to career growth, even in uncertain economic times. While we are all navigating challenging circumstances, our firm recognizes that the achievements, dedication, and leadership of our valued team members never diminish. We’re pleased to congratulate our four newly promoted firm Principals.
Bike & Bus Interaction on Our Streets
Bus operators and people on bikes often share road space, travel at similar speeds, and have very different sizes, making moving easily and safely an ongoing challenge. We recently partnered with LA Metro on a comprehensive review of bike/bus interactions in LA County, and together, developed a set of design and education recommendations that can help and may be applied anywhere in the United States. Take a look!
Recalibrating Our MXD Tool for Mixed-Use Trip Generation
This white paper outlines how our MXD modeling tool was recalibrated and validated with recent travel data and conditions.



