2008 Travel Time Study: Advances in System Performance Measurement

The Ministry of Transportation (MTO) has undertaken a biennial travel time survey of the major provincial roadways in the Greater Toronto Area (GTA) since 1996. The results of the studies provide metrics for assessing facility performance and identifying critical roads sections to be considered in future improvement projects and traffic management strategies. These studies have evolved over time, transitioning from manual methods of travel time data collection to global position system (GPS)-based methods, and expanding the breadth of analyses to include performance measures, such as TTI, BTI and arterial delay. This report describes techniques used in the 2008 Travel Time Study that could improve the process and results of subsequent travel time studies. Such techniques include the automated, GPS-based data collection approach to determining signal delay on arterials. This method replaced manual processes, reducing the potential of error and reducing safety risks to surveyors. Another technique was the concurrent surveying of highways and parallel arterial corridor(s), which facilitated a direct comparison of speeds on the parallel routes in the same time frame. This comparison found that while parallel route data could not always be correlated, it did provides some insight into the time within the peak period when motorists may begin to seek alternative routes to their normal commutes. A comparison of passenger car to truck probe data was also conducted, revealing that while truck speeds are almost always slower than car speeds in high speed conditions, they may still be representative of car speeds during other operating conditions. The report outlines how the techniques used in the 2008 Travel Time Study could be refined and re-applied.


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 19p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01155471
  • Record Type: Publication
  • Report/Paper Numbers: 10-3499
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 11:46AM