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Taxi data during and before Hurricane Sandy in the case study area.

Taxi data during and before Hurricane Sandy in the case study area.

Source publication
Article
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In many large-scale evacuations, public agencies often have limited resources to evacuate all citizens, especially vulnerable populations such as the elderly and disabled people, and the demand for additional transportation means for evacuation can be high. The recent development of ride-sourcing companies can be leveraged in evacuations as an addi...

Context in source publication

Context 1
... FHV trip records are only available from 2015, but the demand and supply of FHV trips in future evacuation events should have similar trends as taxi data during Hurricane Sandy. The number of taxi pickup trips and the corresponding ridership in each zone are shown in Table 2. Ridership is estimated by counting the number of passengers from the taxi trip data. ...

Citations

... For the transit agency, the benefit of having drivers evacuate an empty bus can be considered in the future research. Moreover, with the rapid development of sharing economy in transportation, the proposed method can be extended for future studies to explore the possibility of connecting public transport and private companies such as Uber and Lyft to work together in the evacuation (65). Demographic information can also be studied further when addressing the equity issue in transit-based evacuation planning, such as where minorities or low-income people live and how to improve their access to the shelters and transit. ...
Article
Full-text available
Transportation planning before the actual landfall of a hurricane can save lives by allowing evacuees to be transferred from the affected area to shelters in a safe and timely manner. This paper aims to fill an important research gap by proposing a detailed framework for bus-based evacuation planning with fair resource allocation in dense urban areas. We deconstruct the bus-based evacuation problem into multiple stages. Firstly, we identify a subset of existing bus stops to serve as bus pickup locations during the evacuation through the use of an integer programming model. The objective is to minimize the total number of pickup locations while ensuring full coverage of the demand. Secondly, the selected bus pickup locations are assigned to shelters where safe shelters are provided by the government. An equity component was introduced in the shelter assignment stage to ensure fair evacuation resource allocation. Finally, a bus driver management model was proposed that can be used to determine the optimal crew size in bus-based evacuation planning. A hypothetical hurricane evacuation scenario in New York City was used to evaluate the performance of the proposed methodology and the impact of model parameters. The results can provide feasible decisions on identifying bus pickup locations, shelter assignment, as well as the number of drivers needed for transit-based evacuation planning. The equity component shows a noticeable increase in equity index despite it only adding a small cost to the average travel distance.