Practical calculators and resources for traffic engineers. Streamline your workflow with our professional-grade tools designed by engineers, for engineers.
Calculate signal preemption timing for emergency vehicles, trains, and other priority vehicles based on approach speed and intersection characteristics.
Use ToolDetermine the appropriate yellow and all-red clearance intervals for signalized intersections based on approach speed, intersection width, and more.
Use ToolOptimize signal timing for intersections based on traffic volumes, pedestrian crossings, and coordination requirements.
Use ToolHave feedback on our tools or ideas for new features? We'd love to hear from you!