## An analysis of risk and exposure in automobile accidents |

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### Contents

EXPOSURE TO AUTOMOBILE ACCIDENTS | 4 |

VARIATION IN PARAMETERS AFFECTING EXPOSURE | 22 |

RELATIONSHIP BETWEEN EXPOSURE AND ACCIDENTS | 27 |

3 other sections not shown

### Common terms and phrases

acci accidents occurring accidents versus density accidents versus mean analysis approximation assume automobile accidents average cars entering cars going cars per hour class interval Consequence correlation curve daily accidents daytime Density in 17 deviation of speed driver Equation 8a Equations 24 estimate of risk expected density expected number exposure model Figure 17 frequencies of accidents Gamma distribution Gaussian distribution Hence hypotheses investigators Jersey Turnpike Authority Jersey Turnpike data linear log normal distribution mean hourly density mean speed Merritt Parkway miles per hour miles per minute model of risk Multiple-car accidents versus night nighttime number of accidents number of cars number of exposures observations one-car accidents opposite direction percent Percentage of daily Percentage of non-stoppers points Poisson distribution probability relationship relative error risk taking shown in Figure single-car accidents versus space distribution stretch of road traffic density variation in speed variation of risk varies velocity distribution versus mean hourly