Journal of Applied Mathematics / 2014 / Article / Tab 1

Research Article

An Efficient Methodology for Calibrating Traffic Flow Models Based on Bisection Analysis

Table 1

Weather-related crash statistics (annual averages 1995–2008) [3].

Road weather conditions Weather-related crash statistics
Annual rates 
(approximately)
Percentages

Wet pavement 1,128,000 crashes 18% of vehicle crashes75% of weather-related crashes
507,900 persons injured 17% of crash injuries 81% of weather-related crash injuries
5,500 persons killed 13% of crash fatalities77% of weather-related crash fatalities

Rain 707,000 crashes 11% of vehicle crashes 47% of weather-related crashes
330,200 persons injured 11% of crash injuries 52% of weather-related crash injuries
3,300 persons killed 8% of crash fatalities46% of weather-related crash fatalities

Snow/sleet 225,000 crashes 4% of vehicle crashes 15% of weather-related crashes
70,900 persons injured 2% of crash injuries 11% of weather-related crash injuries
870 persons killed 2% of crash fatalities12% of weather-related crash fatalities

Icy pavement 190,100 crashes 3% of vehicle crashes 13% of weather-related crashes
62,700 persons injured 2% of crash injuries 10% of weather-related crash injuries
680 persons killed 2% of crash fatalities 10% of weather-related crash fatalities

Snow/slushy pavement 168,300 crashes 3% of vehicle crashes 11% of weather-related crashes
47,700 persons injured 2% of crash injuries 8% of weather-related crash injuries
620 persons killed 1% of crash fatalities 9% of weather-related crash fatalities

Fog 38,000 crashes 1% of vehicle crashes 3% of weather-related crashes
15,600 persons injured 1% of crash injuries 2% of weather-related crash injuries
600 persons killed 1% of crash fatalities 8% of weather-related crash fatalities

Weather-related 1,511,200 crashes 24% of vehicle crashes
629,300 persons injured 21% of crash injuries
7,130 persons killed 17% of crash fatalities

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