Impact of Smartphone Applications on Trip Routing and Congestion Management

The Georgia Institute of Technology-led research evaluated trip re-routing potential of route guidance apps, how drivers utilized the information provided, and the impact of traffic re-routing on roadway facility usage, congestion, and prevailing speeds. Major findings of this study included a variety of characteristics associated with navigation apps and no singular uniform usage of navigation apps for all users or roadway facilities, a difference in stated vs real behavior associated with navigation app usage and travel behavior. Additionally, this study reveals the many challenges associated with collecting personal location history data through face-to-face surveys and online. The Florida International University led research developed a direct method to estimate the diversion for individual incidents based on mainline detector data and incident data. The study found evidence that the diversion was constrained by the capacity of the signals at the off-ramps, indicating the need for special signal control plans during incidents to increase the capacity of the off-ramps and adjacent signals leading to the main parallel routes. Data analytic models were developed in the study, allowing the prediction of the diversion rate based on the incident severity, number of blocked lanes, time of the incident occurrence, and incident locations. Three different models were developed utilizing LR, SVM, and MLP. Among the developed models, the MLP model appeared to produce the best results. The models developed in this study can be used for prediction of diversion rate based on incident characteristics. The Jackson State University led research focused on the application of the traveler information data in congestion management. This part of the study used decentralized traveler information data to locate potential congestions to be applied with the gating control traffic management strategies to reduce traffic congestions in emergency events. Travel time reliability measures were applied to account for delays and identify significant traffic congestions for potential gate locations in evacuation zones. Performance of the gating control traffic management strategies were evaluated using a case study, with DTALite program, a simulation based DTA tool. The traffic simulations in the case study for the evacuation network in Memphis, TN configured with the gating control strategies using the decentralized traveler information data showed the effectiveness of the gating control traffic management strategies in managing evacuation traffic operations.

Project

  • Status: Completed
  • Funding: $206661
  • Contract Numbers:

    69A3551747104

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)

    University of Florida
    365 Weil Hall
    Gainesville, FL  United States  32611
  • Project Managers:

    Tucker-Thomas, Dawn

  • Performing Organizations:

    Georgia Institute of Technology, Atlanta

    790 Atlantic Drive
    Atlanta, GA  United States  30332-0355

    Jackson State University, Jackson

    Department of Civil and Environmental Engineering
    Jackson, MS  United States  39217-0168

    Florida International University

    Division of Research
    11200 SW 8th St, MARC 430
    Miami, FL  United States  33199
  • Principal Investigators:

    Guin, Angshuman

    Hadi, Mohammed

    Wang, Feng

    Hunter, Michael

    Watkins, Kari

  • Start Date: 20180315
  • Expected Completion Date: 20200615
  • Actual Completion Date: 20210802
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01659456
  • Record Type: Research project
  • Source Agency: Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)
  • Contract Numbers: 69A3551747104
  • Files: UTC, RIP
  • Created Date: Feb 6 2018 11:32AM