What We Do


KOA has a reputation for innovation and leadership in the design and engineering of transportation systems throughout Southern California. For the past 30 years, we have demonstrated engineering leadership in all aspects of our streets and highways including traffic signals, intelligent transportation systems, communications, signal timing and operations, street lighting, intersection design, highway design, parking, worksite traffic control, active transportation and complete streets, transit systems, ADA compliance, and systemic safety analysis reporting.

We have worked for nearly every municipal agency in Southern California and also provide on-call services for many of them. Our designs and plans are known for their high quality and cost-effective use of resources and budgets.

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KOA’s transportation planning team balances the needs of all aspects of the transportation system in every project we undertake, applying and developing the best practices in the industry. Our planners and engineers develop ideas and solutions that work as well on paper as they do once constructed. Our solutions to planning issues incorporate mobility, urban design, and sustainability to benefit the rapidly changing world of how we live, work, play, and travel. Our goal is to plan transportation systems that promote safety and alternate forms of mobility such as pedestrian, bicycle and transit, to provide a comprehensive reduction on the impacts of motor vehicle traffic.

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Active Transportation

At KOA, we believe that active transportation planning and engineering plays an important role in creating safer, healthier, and more equitable communities. Through our efforts in planning and design, we have developed a diverse portfolio of active transportation projects over the years, many of which have since been constructed. We have witnessed first-hand the transformative nature of active transportation projects on communities across Southern California.

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Construction Management

Our construction professionals apply many years of experience on federal, state, and locally funded projects, including municipal agency, utility and private construction. We provide construction management and observation services for bridges, highways, civil projects, roadways, utilities, transportation, rail, airports, vertical structures, and park projects. Our team consists of some of the most practical Construction Managers and Technicians available. KOA provides all parties with up-to-the-minute information and is sensitive to the special needs of the community. Our construction inspectors bring years of accrued skills in dealing with contractors and keeping projects on schedule and on budget.

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Grant Writing & Management

KOA is well-versed in the procedures and requirements of preparing grant applications, especially for Active Transportation projects (ATP). KOA has prepared nearly 20 winning grant applications for Southern California cities.  KOA provides the necessary planning level analyses, maps, and exhibits needed to develop compelling narratives for each grant application.  As part of our services, we prepare engineering plans and detailed cost estimates that are important for securing funding.  Our submittals have a 74% success rate for grants and an 88% success rate for ATP applications. Through KOA’s efforts, our clients have collectively won more than $25 million dollars for their respective projects.

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Local Roadway Safety Plan (LRSP) & Systemic Safety Analysis Report Program (SSARP)

KOA has leveraged our extensive transportation engineering experience with Highway Safety Improvement Program (HSIP) projects, roadway safety and GIS “big data” analysis, along with our grant writing and management services to become an industry leader with Caltrans SSARP. The success of our company with SSARP and other planning projects stems from our multi-disciplinary approach and collaboration between our team of skilled planners and engineers.

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