Download Presentation (2.1 MB)

Streaming Media




As part of the initial phase of development for the Idaho Statewide Travel Demand Model, Parsons Brinckerhoff developed a base year auto and truck trip matrix using AirSage cell phone OD data, a statewide network in Cube, traffic counts, and origin-destination matrix estimation (ODME) procedures. To begin, the 4000+ statewide zone system was aggregated into a 700 super zone system for collecting the cell phone OD data. Next, the cell phone data was collected for the month of September 2013 for the following market segments: Average weekday resident HBW, HBO, NHB, and visitor NHB trips. The cell phone trips were then disaggregated to zones using each zone’s share of super zone population and employment. These initial trip matrices were assigned to the daily statewide network using free flow travel time for route impedance and iteratively adjusted to minimize the difference between the estimated link volumes and traffic counts by user class.

This iterative trip matrix balancing procedure, also known as ODME, converged nicely by user class and facility type and produced reasonable flows. The resulting trip matrix trip length frequencies matched fairly well with the Census Journey to Work trip distances as well as the COMPASS (Boise area) MPO surveyed trip lengths. The goodness-of-fit between the synthesized trip lengths and the observed trip lengths was analyzed across multiple dimensions, including urban versus rural, by zone, and by trip purpose, and some differences were observed. The use of cell phone OD data, in conjunction with ODME, is an innovative and promising solution for developing statewide travel OD data with limited resources.

Biographical Information

Ben Stabler is a Senior Supervising Planner at Parsons Brinckerhoff.


Choice of transportation -- Mathematical models, Traffic estimation, Urban transportation, Transportation -- Idaho -- Planning, Cell phones -- Applications to traffic modeling


Transportation | Urban Studies and Planning

Persistent Identifier

Development of the Idaho Statewide Travel Demand Model Trip Matrices Using Cell Phone OD Data and Origin Destination Matrix Estimation



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.