U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

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

File Language:
English


Details

  • Creators:
  • 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
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:9c21fbfd3b83abcf0ebaaa0b7c9a353b48b5a904d1f6aa283b348149c52f3f8e36af822562223a376925e6c652d3e1054f73179d82bb0f5dd85dcbfc3477f556
  • Download URL:
  • File Type:
    Filetype[PDF - 2.89 MB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
 Found an issue?
Send us an email at:
publishinghd@cdc.gov
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP