Northwest Signal Supply is a service-oriented firm providing professional traffic engineering services to public agencies and other consultants.

Traffic signal services:

• Traffic signal design
  
• Timing and phasing analysis
  
• Arterial coordination
  
• Interconnect system
  
• Pole structural design
  
• Functional design of intersections
  
• Signing and striping plans
• Roadway lighting
  
• In-roadway lighted crosswalks