2013 Session: A0030T

2013 Session: A0030T

  • PROBE VEHICLE BASED STATEWIDE MOBILITY PERFORMANCE MEASURES FOR DECISION MAKERS
    Abstract: Decision makers in state transportation agencies typically manage budgets approaching or exceeding $1B. However, the data they have historically used for making investment decisions is quite coarse and is typically based upon short-term volume counts fed into models to forecast future performance. As a result, it is not uncommon for construction projects to address needs that were forecast to be a priority five to ten years prior, while more pressing congestion challenges go unmet. This fact does not go unnoticed by the public and media, and it is essential that long-term planning begin to be supplemented by more current performance measures. Emerging private sector probe vehicle data obtained from mobile phones and commercial telemetric providers offers an opportunity to augment traditional forward-looking planning models with performance measures that reflect conditions motorists are experiencing today. This paper proposes analytical probe data reduction techniques that can be scaled to a project, region, state, or national level to create technically sound yet intuitive mobility performance measures of current freeway conditions. These types of performance measures are increasingly used by high-level agency management to identify locations where customers experience congestion, to determine the magnitude of congestion, and to compare congestion on various highway corridors. These proposed performance measures can be used for policy-oriented decisions such as prioritization of capital program investments, managing snow removal, and scheduling lane closures. In addition to the analytical data reduction, corresponding data visualizations of the performance measures are presented. This paper describes the application of these analytical techniques to seven Indiana interstates comprised of 1886 directional miles. These interstates span rural and urban sections that experience varying levels of recurring and non-recurring congestion due to special events, winter weather, and construction activity. Specific examples adjacent to the Indianapolis, Indiana; Louisville, Kentucky; and Chicago, Illinois, metro areas are presented along with the Top 10 congested Interstate segments.
    Authors: Brennan, Thomas M.; Remias, Stephen Matthew; Grimmer, Gannon; Horton, Deborah K.; Cox, Edward D; Bullock, Darcy M.
    Authors: Brennan, Thomas M.; Remias, Stephen Matthew; Grimmer, Gannon; Horton, Deborah K.; Cox, Edward D; Bullock, Darcy M.
    Year: 2013
    Document Type: Paper
    Subject: Data and Information Technology; Operations and Traffic Management; Policy
    Session: A0030T
    Paper Number: 13-0551
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