Impacts on Design Standards Related to SpeedStatus: CompleteReport Date: 12/23/2025 Summary: This project emphasizes the importance of roadway design in influencing driver behavior and operating speeds. Research shows that physical elements such as lane width, medians, on-street parking, and access density are more effective than posted speed limits in shaping actual travel speeds. Tools like Speed Reduction Factors and the Speed Limit Setting Tool offer data-driven methods to align design with safety goals, particularly for vulnerable users. Final Deliverables: Impacts on Design Standards Related to Speed (Report #2025RIC19) Driving Speeds: What Makes a Difference? (Video #2025RIC19V) Driving Speeds: What Makes a Difference? (Fact Sheet #2025RIC19B) Related Materials: Related Research: