Date & Time
Thursday, April 2nd at 11am PT/ 2pm ET
Join us for our next Talk with the Experts Series: Speed Matters: The Value of GPS-Based Probe Data for Safe Systems Approach
Speed is the single most critical factor in determining whether a crash is survivable—especially for pedestrians and bicyclists. Yet many cities still rely on lagging, reactive crash data to guide speed management decisions, slowing the adoption of proven safety interventions. What if agencies could proactively identify risky corridors and validate safety investments in near–real time?
In this webinar, we’ll explore how anonymized GPS-based probe data from connected vehicles and devices can transform how cities measure, prioritize, and scale safe-speed strategies. By moving beyond traditional crash-based analysis, agencies can gain a system-wide view of speed behavior and its relationship to vulnerable road user risk.
Drawing on a collaborative research project between the Vision Zero Network, INRIX, and the cities of Bellevue, WA and Detroit, MI, this session demonstrates how probe data can be used to evaluate real-world safety treatments—from speed limit reductions to road reconfigurations—and inform data-driven decisions that support a Safe System approach to traffic safety.
What you’ll learn in this webinar:
- The power of speed distribution: With probe data, transportation professionals have an on-demand, rolling account of the actual speeds of vehicles on their roadways, enabling on-the-fly analysis of speed metrics like excessive speeding. This helps move towards more proactive, systemic speed management and fills gaps in traditional crash-based safety analyses.
- Real-world case studies : Hear about the effectiveness of speed safety interventions in Detroit, MI and Bellevue, WA. Different analytical approaches highlight how cities can evaluate outcomes both with and without traditional before-and-after data.
- How agencies can scale: Understand how probe data can help identify speeding patterns across entire roadway networks, not just known crash hotspots. This approach supports extending Safe System strategies into residential streets and broader neighborhoods to improve safety at scale.
This session is ideal for transportation planners, safety professionals, and Vision Zero leaders looking to accelerate implementation of effective speed management strategies using modern data sources.