Comparison of Travel Time Estimation Using Three Previously Developed Methods to Field Data Along Freeways

There are several methods available for analyzing freeway bottlenecks, including shockwave analysis, queuing theory, and re-scaled cumulative curves. Even though the three methods are interrelated, previous research has concluded that shockwave and queuing theory are fundamentally different in calculating travel time and delay, while others have shown that the results from the two methods are the same. The objective is to compare travel time estimation using these analytical methods to field-measured travel times. Flow and speed data in one-minute intervals were collected along two freeway sections in Philadelphia, PA. Travel times were collected by tracking unique vehicles along these sections. Results showed that for section 1, travel time using both queuing theory and shockwave analysis was underestimated compared to the field-measured travel time. For section 2, the estimated travel time was similar to the field-measured travel time. Re-scaled cumulative curves could not be applied for these particular sections.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/4905990610C3051
• Corporate Authors:

  Japan Society of Traffic Engineers

  3-3-1, Kasumigaseki, Minato-ku
  Tokyo 100-0013,   Japan 
• Authors:
  • Yeon, Jiyoun
  • Elefteriadou, Lily
• Conference:
  • 5th International Symposium on Highway Capacity and Quality of Service
  • Location: Yokohama , Japan
  • Date: 2006-7-25 to 2006-7-29
• Publication Date: 2006-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 229-238
• Monograph Title: Proceedings of the 5th International Symposium on Highway Capacity and Quality of Service. Volume 2 - Technical Papers

Subject/Index Terms

• TRT Terms: Alternatives analysis; Bottlenecks; Estimating; Freeways; Queuing theory; Traffic queuing; Travel time
• Uncontrolled Terms: Field data; Shock waves (Traffic)
• Geographic Terms: Philadelphia (Pennsylvania)
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01035841
• Record Type: Publication
• ISBN: 4905990610 C3051
• Files: TRIS
• Created Date: Oct 23 2006 2:15PM