ZONE was established in 2024 as a dynamic, small traffic engineering Limited Liability Partnership (LLP) with an impressive depth of experience. Based in San Diego, California, our professionals have over 25 years of award-winning transportation industry expertise across Southern California and beyond. We specialize in a range of traffic engineering services, emphasizing safety, complete streets, active transportation, and mobility. Our primary offerings include Traffic Engineering plans, specifications, and estimates (PS&E) preparation in addition to Traffic Engineering consulting, studies, warrants and similar services.
To benefit our teaming partners, ZONE currently holds the following statewide certifications in California…
| Certification | Cert. No. | Expiration |
|---|---|---|
| DVBE | 2041759 | 10/31/2026 |
| SB(Micro) | 2041759 | 10/31/2026 |
| SB-PW | 2041759 | 10/31/2026 |
| DBE | 52820 | 1/31/2026 |
| SBE | N/A | 1/31/2026 |















ZONE professionals have assisted clients with numerous transportation projects, with several receiving awards from leading transportation organizations