Directly observing stop-to-stop origin–destination (O-D) flows for transit passengers by onboard surveys is time-consuming and costly. While the use of automatic passenger count (APC) and automatic fare collection data to infer transit O-D flows has undergone important developments lately, the value of directly observing O-D movements remains of interest in light of inference errors. The increasing use of personal mobile devices and the corresponding reliance on wireless fidelity (Wi-Fi) communications in public spaces allow for the prospect of using the detected anonymous Wi-Fi signals of mobile devices carried by transit passengers to extract O-D movements. An empirical study is conducted when O-D movements determined directly from Wi-Fi signal data and from a combination of Wi-Fi and APC data are compared to extensive, directly observed high-fidelity ground truth data obtained from an onboard survey. While O-D flows determined directly from the Wi-Fi data for a specific bus trip do not correspond well to the ground truth flows, the results demonstrate the promise of using Wi-Fi signal data for O-D flow determination when the data are aggregated across multiple bus trips for a time-of-day period, especially when used in conjunction with APC data.


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    Title :

    Use of Mobile Device Wireless Signals to Determine Transit Route-Level Passenger Origin–Destination Flows: Methodology and Empirical Evaluation


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2016-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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