


| Ahern Engineering Professional Traffic Engineering Experts Ahern Engineering offers clients over 10 years of traffic and transportation engineering experience. Our engineers are ready to assist you with your traffic engineering design and expert services, including Accident Reconstruction. Ahern Engineering is a Chicago based firm with PE's registered in Illinois, Iowa, and Michigan. We are pre-qualified with the Illinois Department of Transportation in traffic signal design and Signal Coordination and Timing (SCAT). We are also certifed with IDOT as a DBE. |