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Validation and augmentation of Inrix arterial travel time data using independent sources.

File Language:
English


Details

  • Creators:
    Haghani, Ali ORCID ICON IMG ; Zhang, Xuechi ; Hamedi, Masoud
  • Corporate Creators:
    University of Maryland (College Park, Md.). Department of Civil and Environmental Engineering
  • Subject/TRT Terms:
  • Publication/ Report Number:
    MD-15-SHA-UM-3-6
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Maryland
  • Corporate Publisher:
    Maryland. State Highway Administration
  • Abstract:
    Travel time data is a key input to Intelligent Transportation Systems (ITS) applications. Advancement in vehicle ; tracking and identification technologies and proliferation of location-aware and connected devices has made network-wide travel time data available to transportation management agencies. The trend started with data collection on ; freeways has been quickly extended to arterials. Although freeway travel time data has been validated extensively in ; recent years, the quality of arterial travel time data is not well known. This project presents a comprehensive validation ; scheme for arterial travel time data based on GPS probe and Bluetooth generated data as two independent sources. ; Since travel time on arterials is subject to a higher degree of variation compared to freeways mainly due to presence of ; signals, a new validation methodology based on coefficient of variation was introduced. Moreover, a Context ; Dependent (CD) based travel time fusion framework was developed to improve the reliability of travel time ; information by fusing data from multiple sources. The entire 2012 data on a busy arterial corridor consisting of six ; segments in Maryland was used to demonstrate the proposed comparison and augmentation model.
  • Format:
    PDF
  • Funding:
    SP309B4F
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/28593/dot_28593_DS1.pdf
  • File Type:
    Filetype[PDF - 2.89 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha-512:9c21fbfd3b83abcf0ebaaa0b7c9a353b48b5a904d1f6aa283b348149c52f3f8e36af822562223a376925e6c652d3e1054f73179d82bb0f5dd85dcbfc3477f556
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