4.7 Article

Prediction of population behavior in hurricane evacuations

Journal

TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE
Volume 159, Issue -, Pages 200-221

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tra.2022.03.001

Keywords

Hurricane; Evacuation; Prediction; Dynamic discrete choice

Funding

  1. National Science Foundation [CMMI-1331269]

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This study advances the prediction of population evacuation behavior during hurricanes by comparing the practical utility of five different models. The results suggest that logistic regression model is easiest to implement and provides good predictive power for estimating the total evacuation rate of a region, while the dynamic discrete choice model is recommended for spatial and/or timing predictions. The best models currently available can estimate the total evacuation rate within a range of one to nine percentage points, the evacuation rate for each county within 10 to 15 percentage points, and the departure curve within several hours.
This study advances prediction of population evacuation behavior during hurricanes by comprehensively comparing five different models based on their practical utility for future hurricanes. The models-participation rate (PR-S), logistic regression (LR-S), random parameter logit (RPL), time-dependent Cox (TD-Cox), and dynamic discrete choice (DDC)-were fitted using population survey and hurricane data collected in a consistent format across four different hurricanes (Florence 2018, Michael 2018, Dorian 2019, and Barry 2019). Out-of-sample predictive power was evaluated in terms of prediction of total evacuation rates, spatial distribution of evacuees, evacuation timing, and individual behavior. The final set of predictors can be obtained for a whole region and applied in the future for prediction. The results suggest that if only an estimate of the total evacuation rate for the whole region is required, the LR-S is easiest to implement and provides good predictive power. However, if spatial and/or timing predictions are required, the DDC is recommended. The results suggest that in general, for future hurricanes, the best models currently available can estimate total evacuation rate within one to nine percentage points; evacuation rate for each county within 10 to 15 percentage points; and departure curve within several hours. Results also indicate that errors become smaller as geographic granularity increases.

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