Freeway Travel Time Estimation Using Existing Fixed Traffic Sensors (Phase I)

The Missouri Department of Transportation (MoDOT) collects traffic data from more than 700 fixed traffic sensors located along major freeways and arterials in the greater St. Louis area. The department wanted to utilize this data more fully to extract useful information for stakeholders. One potential application is to convert the information collected by the fixed traffic sensors directly into travel times without the need to install additional sensors. The study team developed a database specifically designed and optimized for the purpose of freeway performance measurement and implemented a data quality assurance procedure to examine the quality of the data collected. After conducting several case studies, they were able to prove the feasibilty of this approach.

Title: Freeway Travel Time Estimation Using Existing Fixed Traffic Sensors (Phase I)
Published: February 2014
Report number: cmr 14-008
Project number: TR201311
Author(s): Yao-Jan Wu, Shu Yang, and Saber Abdoli
Performing organization: Saint Louis University Department of Civil Engineering