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The Impact of Increased Vehicle Size on Pedestrian and Bicyclist Safety: Research Roadmap
The size and mass of the private vehicle fleet in the United States have increased over time due to many factors, including prioritization of vehicle occupant safety, vehicle standards, and consumer preference. Studies have consistently found that pedestrians are likely to sustain greater injury from an SUV than a car, particularly at higher speeds. While larger, heavier vehicles increase injury risk for people walking, bicycling, and rolling in the event of a crash, there are still unanswered questions about the relationship between larger vehicle size and vulnerable road users’ safety.
Transportation Research Circular E-C305: The Impact of Increased Vehicle Size on Pedestrian and Bicyclist Safety: Research Roadmap aims to broadly define research areas and map the complex problem of vehicle size and pedestrian and bicyclist safety for transportation stakeholders seeking to better understand and address its various facets.
This Summary Last Modified On: 11/6/2025
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