Vehicular traffic estimation through bluetooth

" summary

A Raspberry Pi–based prototype detects Bluetooth signals from passing vehicles using Debian-run Bluetooth inquiry tools on battery-powered roadside probes, sending traces to a Python backend built with the web2py framework for aggregation and analysis. The system estimates traffic volumes (using detected-device percentages from city tests) and computes travel times between probe locations to produce origin/destination inputs for traffic models, all implemented with free and open-source software for easy municipal deployment.

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