From Data Collection to Real‑World Impact in Child Passenger Safety

User-friendly data collection, real-time analysis, intuitive visualizations: These help practitioners spot gaps, track trends, and act proactively, turning information into action. With these in mind and using National Digital Car Seat Check Form (NDCF) data, a program managed by the National Safety Council (NSC), Westat staff developed the National Car Seat Check Coverage Map, which has had a positive effect on child passenger safety (CPS).

Westat survey methodology, data science, and GIS experts Adele Polson, Elizabeth Petraglia, PhD, and Michael Giangrande, MGIS, discuss how the NDCF data and the National Car Seat Check Coverage Map provide practical insights and more effective interventions, and how similar visualizations can be used across policy areas.

Understanding the NDCF and Its Impact

Q: The NSC notes that technicians using the NDCF are more efficient and can conduct more checks. What enables that efficiency?

A: Elizabeth Petraglia: The NDCF team includes CPS and data experts, and the resulting form is easier for technicians to use and improves data quality. The system has built-in logic that skips irrelevant questions, reducing both workload and common errors.

Q: How do improved data collection and visualization translate into real-world outcomes?

A: Adele Polson: Before the NDCF, there was no centralized source for car seat installation or misuse data, and most of the data were never analyzed. The NDCF has over 6,000 custom dashboards that are updated monthly. These data are informing engineering updates to car seats, shaping targeted outreach and research efforts, and helping programs secure grants.

Data Visualization and Analytics

Q: What role does data visualization play in making the NDCF useful for both technicians and decision-makers?

A: Elizabeth Petraglia: The dashboards get information into the hands of users quickly, in a way that is accessible to a wide audience. Based on feedback, we’ve added features like downloadable charts for presentations and easy-to-use buttons that run common reports instantly.

Q: How do interactive geospatial or statistical dashboards enhance agencies’ ability to prioritize resources and tailor interventions?

A: Elizabeth Petraglia: Visual dashboards help capture policymakers’ attention, and ease-of-use facilitates efficiency in decision-making. Many CPS programs don’t have the resources for in-depth analysis, even as grants increasingly require data. The NDCF makes it simple to download tailored graphics that support funding requests, highlight local needs, and show when interventions are working.

Technical, Statistical, and Geospatial Insights

Q: From a statistical/geospatial perspective, what makes overlaying public census data with car seat data uniquely valuable?

A: Michael Giangrande: Interactive geospatial tools help agencies spot disparities they might otherwise miss. On the NDCF, layering demographic census data with seat check locations instantly highlights service gaps and “deserts,” turning the map into a diagnostic tool rather than just a visual one. It clearly shows where populations and services don’t line up.

Q: How do geographic patterns in the data inform where outreach and resources may be needed?

A: Adele Polson: State program coordinators report using the map to target their outreach. Accessing county-level census data allows them to schedule car seat checks, connect with advocates, and tailor outreach quickly and efficiently.

Beyond Passenger Safety

Q: How can similar digital tools help organizations move from reactive to proactive safety strategies?

A: Michael Giangrande: These digital tools help agencies anticipate needs. By mapping populations alongside service locations, organizations can clearly see where gaps exist and direct resources accordingly.

One of the most effective design features is pairing big-picture map layers with detailed county-level profiles. Users can toggle between seat check locations and coverage ratios to see broad trends, then click on a county for an instant community snapshot. These pop-ups pull in relevant census data so users can compare local conditions to national averages. Any national public health tool can benefit from this structure.

Q: What makes a digital data system successful and widely adopted across different states, organizations, or professional groups?

A: Elizabeth Petraglia: The biggest key to success has been having a strong, well-rounded team that delivers data quickly. The NDCF brings together experts in data analysis, communication, programming, and training. Raw data are delivered immediately, and cleaned national data appear in the dashboard within 2 months.

Our partners through NSC have been essential, and the council’s nationwide outreach has played a major role in expanding the impact of NDCF outcomes.

Q: What are the long-term impacts on and benefits to society?

A: Elizabeth Petraglia: This work makes children safer, and that’s what makes it so rewarding. We’ve already seen manufacturers use NDCF data to identify commonly misused features, improve their designs, and then confirm through the NDCF that those changes reduced misuse.

Adele Polson: Despite major advances in vehicle and car seat design, crashes remain a leading cause of death for children. By giving communities and injury prevention programs real data to guide improvements, the NDCF helps close that gap.

By uniting user-centered design, rigorous data science, and geospatial overlay, tools like the NDCF can provide actionable intelligence at scale. They can help practitioners and policymakers move faster, target smarter, and deliver measurable outcomes.