Beneath the Surface: Benchmarking Privacy in Pavement-Level Urban Sensing
This comprehensive guide explores the emerging field of pavement-level urban sensing, where sensors embedded in sidewalks and roadways collect data on foot traffic, environmental conditions, and infrastructure health. We benchmark privacy practices across different sensing modalities, examining the trade-offs between data utility and individual privacy. From pressure-sensitive tiles to acoustic sensors and video analytics, we provide a framework for evaluating privacy risks, implementing mitigation strategies like edge processing and data aggregation, and navigating regulatory landscapes. Drawing on anonymized scenarios from smart city pilots, we offer actionable steps for urban planners, technology vendors, and policymakers to design sensing systems that respect privacy while delivering valuable insights. This guide emphasizes qualitative benchmarks over fabricated statistics, focusing on trends and best practices as of May 2026.