Business Details
33 Years
experience
Emergency
services
Your Trusted Traffic Engineering Partner in Tustin
Hartzog & Crabill has been a trusted leader in traffic and civil engineering since 1993, delivering specialized solutions for local government agencies. Our team of licensed professionals brings decades of hands-on experience in traffic signal design, transportation planning, and municipal engineering. We prioritize client satisfaction through technical excellence, adherence to state and federal standards, and a commitment to addressing community needs. Our engineers hold certifications in traffic and civil disciplines, ensuring compliance with Caltrans specifications and ADA regulations. With a focus on innovation, we develop coordinated traffic systems, conduct impact analyses, and manage capital improvement projects.Our proven track record includes securing federal grants for infrastructure upgrades and maintaining long-term partnerships with Southern California cities. We combine technical precision with responsive service, offering 24/7 support for critical signal malfunctions and proactive system management. Our staff's deep familiarity with local agency codes and collaboration with maintenance contractors ensures efficient project execution. By integrating field data with advanced design software, we deliver cost-effective, future-ready solutions. This dedication to quality and client-centric service has solidified our reputation as a reliable engineering partner for over 30 years.
Services
Traffic Signal Operations
Traffic Signal Design
Engineering Services
Civil Engineering
Transportation Planning
Details
- Year established: 1993
Highlights and features
- We offer 30+ years of specialized traffic engineering expertise
- Our team includes licensed Civil and Traffic Engineers with municipal experience
- We implement proven traffic signal coordination systems for 11 local agencies
- We've secured federal Hazard Elimination Safety funds for infrastructure upgrades
- Our staff maintains 24/7 responsiveness for critical signal malfunctions
Services
Traffic Signal Operations
We provide continuous traffic signal system management for 11 municipalities. Our specialists monitor signal performance daily, analyze traffic patterns, and coordinate maintenance with contractors. This proactive approach minimizes downtime and optimizes traffic flow through regular timing adjustments and system upgrades.
Traffic Signal Design
Our team creates comprehensive traffic signal plans meeting Caltrans and local standards. We conduct field reviews, prepare construction documents, and ensure ADA compliance. Projects include new installations, modifications, and interconnect systems with detailed technical specifications for successful implementation.
Transportation Planning
We perform traffic impact studies, develop coordination systems, and prepare speed limit recommendations. Our planning incorporates field data and modeling to create efficient transportation solutions that address current and future infrastructure needs for municipalities.
Civil Engineering
Our civil engineering services include grading plans, drainage design, and public works projects. We ensure all designs meet regulatory requirements while addressing specific municipal challenges through customized, code-compliant solutions.
Engineering Services
We act as contract engineers for cities, managing traffic divisions and responding to council requests. Services include plan reviews, construction oversight, and technical support to ensure safe, efficient municipal infrastructure operations.
People
Gerald J. Stock
Executive Vice President
Licensed Civil and Traffic Engineer with 33+ years of municipal experience. Serves as Principal-In-Charge for city traffic engineering services since 2000, specializing in traffic impact analysis and capital improvement programs.
Scott Ma
Senior Engineer
Licensed Civil and Traffic Engineer with 20+ years of experience. Manages traffic engineering services for South Gate, conducting warrant analyses and operational studies while overseeing project management tasks.
Bernie Dennis
Senior Traffic Engineer
Registered Professional Traffic Engineer with 40+ years of municipal experience. Provides traffic engineering support to multiple cities, focusing on operations, planning, and public communication regarding traffic solutions.
Douglas R. Anderson
Traffic Engineering Manager
Manages Tustin's traffic engineering operations, including signal system management and development review. Coordinates transportation projects and implements traffic control plans for municipal improvements.
Michael Vallado
Associate Engineer
Traffic engineering specialist with 25+ years of experience, including 5 years leading Glendora's Traffic Engineering section. Prepares signal analysis reports and project specifications for client cities.
Questions
What engineering services do you specialize in?
We specialize in traffic signal design, transportation planning, civil engineering, and municipal infrastructure solutions for local governments.
How long have you served municipal clients?
We've provided engineering services to Southern California cities since 1993, maintaining long-term client relationships.
Do you handle emergency traffic signal issues?
Yes, we report signal malfunctions to maintenance contractors within 24 hours and provide urgent resolution support.
What areas do you serve?
We operate across 11 Southern California cities including Tustin, Laguna Hills, and Rancho Santa Margarita.
How do you ensure project compliance?
Our engineers follow Caltrans standards, ADA regulations, and local agency codes during all design and implementation phases.
