Hartzog & Crabill Inc. (HCI) is a traffic-engineering firm dedicated to serving the individual traffic needs of our client agencies. Established in 1993, HCI has specialized in all aspects of traffic engineering, including traffic signal design and operations, city engineering services, and transportation planning. We have continuously and successfully provided these quality professional ser- vices for over thirteen years through an experienced and knowledgeable team of engineers and support staff.

275 Centennial Way, Suite 208
Tustin, California 92780
Tel: (714) 731-9455
Fax: (714) 731-9498

"More Green for Your Green"