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Weather's Impact on Travel Time and Travel Time Variability in New York City

机译:天气对纽约市旅行时间和旅行时间变异性的影响

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In this study, the impact of weather conditions on travel time and travel time variability in NewYork City is investigated using Classification and Regression Trees (C&RT). For this purpose,taxi GPS data provided by the New York City Taxi and Limousine Commission (TLC) withmore than 370 million records is merged with historical weather data. For all day-of-week(DOW), time-of-day (TOD) and weather condition categories, the impact of weather on themean and mode of travel time distributions and on the coefficient of variation as a measure forvariability are analyzed. It is found that the level of travel time variability changes across DOW9TOD-weather categories and that weather has a higher impact on travel time and variabilityduring less congested periods. The literature has shown that inclement weather slows traffic: amajor finding of this study is that it also reduces traffic variability, a finding that would seemcounter-intuitive. Using a rich dataset and the appropriate analytical methods, the present studycontributes valuable insights to the understanding of travel time variability in an urban context.
机译:在这项研究中,天气条件对新州旅行时间和旅行时间变异性的影响 使用分类树和回归树(C&RT)对约克市进行了调查。以此目的, 纽约市出租车和高级轿车委员会(TLC)提供的出租车GPS数据 超过3.7亿条记录与历史天气数据合并。对于一周的全天 (DOW),一天中的时间(TOD)和天气状况类别,天气对 行程时间分布的均值和众数,并以变化系数作为衡量 分析变异性。发现旅行时间变异性水平在整个DOW9中都发生了变化 TOD天气类别,并且天气对旅行时间和变异性有较大影响 在不太拥挤的时期。文献表明恶劣的天气会减慢交通速度: 这项研究的主要发现是它还减少了交通流量的变化,这一发现似乎 违反直觉的。使用丰富的数据集和适当的分析方法,本研究 为了解城市环境中旅行时间的可变性提供了宝贵的见解。

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