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Weather Impacts On Traffic Parameters And Signal Timing Performance, Ashrafur Rahman
Weather Impacts On Traffic Parameters And Signal Timing Performance, Ashrafur Rahman
Ashrafur Rahman
This research is a combination of three studies carried out to explore weather impacts on traffic parameters. The first part investigates light rainfall’s impact on uncongested speed during the daytime on a two lane state highway with a detailed statistical analysis and spatially compatible rainfall and speed data. The results show that the speed distribution in light rain conditions is significantly different from the no-rain condition. Light rain causes a drop of 0.9 mph (1.5 km/hr) or 1.8% of speed from the no-rain condition. Variability of speed is not found significantly different between the two conditions. The second part investigates …