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Validation and Applicability of Floating Car Speed Data for Road Safety

Jurewicz, C., Espada, I., Makwasha, T., Han, C., Alawi, H., Ambros, J.

Speed Limits 1

ARSC conference 2017

Traffic speeds are one of the most important factors influencing road safety outcomes. The project compares floating car data (FCD) speeds with conventionally collected point-speed data for different parts of the road network in Victoria. Analysis showed a clear relationship between the two data types. Simple calibration models were developed to interpret FCD speeds in the context of conventionally measured free-flow speeds. Availability of FCD speed data was much greater than for point-speed data, covering most of the public road network. The project also noted some limitations, but pointed to opportunities for more sophisticated speed-safety models than currently available.