Impact of data source on travel time reliability assessment.

Details

• Creators:
  Haghani, Ali ; Zhang, Yanru ; Hamedi, Masoud
• Corporate Creators:
  University of Maryland (College Park, Md.). Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Travel time
  • Data collection
  • Probe vehicles
  • Bluetooth technology
  • Performance measurement
  • Reliability
  • Real time information
  • High occupancy vehicle lanes
• Publication/ Report Number:
  UMD-2013-01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maryland
• Corporate Publisher:
  Mid-Atlantic Universities Transportation Center
• Abstract:
  Travel time reliability measures are becoming an increasingly important input to the mobility and ; congestion management studies. In the case of Maryland State Highway Administration, reliability ; measures are key elements in the agency’s Annual Mobility Report that is used for both transportation ; planning and operations. Recent advancements in vehicle tracking technologies have provided both ; private sectors and transportation agencies with multiple technologies for travel time data collection. ; This paper investigates the effect of data source selection on travel time reliability assessment. One year ; data from two independent sources, probe and Bluetooth, on two major freeway corridors in Maryland ; are used for travel time reliability analysis. Bluetooth sensors are permanently installed on multiple ; points of these two corridors and probe data are provided by INRIX. A statistical method is applied to ; compare reliability measures obtained from both sources. Several travel time reliability performance ; measures are studied. Results show that some reliability measures are more sensitive to the data source ; than the others. It is also shown that performance measures for HOV and general purpose lanes must be ; calculated separately.
  More +
• Format:
  PDF
• Funding:
  DTRT12-G-UTC03
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29047/dot_29047_DS1.pdf
• File Type:
  [PDF - 832.57 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:58736514f1b9240cc91149b08c7f5bcb2872c7e8d379a145fcf4932409d31efc58f8eddb74c2649ba516399c8228c3546f511bb4048cf6daed25580c32722366