Details:

Creators:
Wu, Yao-Jan ; Yin, Zhaozheng ; Yang, Shu ; Jiang, Wenchao
Wu, Yao-Jan ; Yin, Zhaozheng ; Yang, Shu ; Jiang, Wenchao Less -
Corporate Creators:
Missouri University of Science and Technology. Dept. of Computer Science ; University of Arizona. Dept. of Civil Engineering and Engineering Mechanics
Missouri University of Science and Technology. Dept. of Computer Science ; University of Arizona. Dept. of Civil Engineering and Engineering Mechanics Less -
Corporate Contributors:
United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:
[+]
Computer Vision Data Collection Data Quality Freeways Prototypes Sensors Traffic Estimation Travel Time
Publication/ Report Number:
cmr 16-002
Resource Type:
Tech Report
Geographical Coverage:
Missouri
Corporate Publisher:
Missouri. Dept. of Transportation
Abstract:
Travel time, one of the most important freeway performance metrics, can be easily estimated using the

data collected from fixed traffic sensors, avoiding the need to install additional travel time data collectors.

This project is aimed at fully utilizing the data gathered by existing fixed sensors to estimate point-topoint

freeway network travel time in the MoDOT St. Louis District. The objectives of the project were

achieved by accomplishing three major tasks: 1) A new travel time estimation model was developed and

its ability to outperformed two traditional models, the instantaneous and time-slice models, demonstrated

using real-world data. 2) The verification of the proposed model relies on the ground truth travel time.

Collecting ground truth travel time is both time-consuming and challenging, so a novel Vehicle Reidentification

(VRI) method was developed to facilitate the ground truth data collection process with

satisfactory results. 3) A point-to-point network travel time estimation prototype system was also

developed. In addition to the primary module of travel time estimation, both data assurance report

production and traffic volume report production were modularized. The prototype system was then

applied to four case studies measuring: freeway corridor performance (both with and without a turning

junction), the impact of severe weather events on traffic volume, and travel time reliability. The prototype

system clearly demonstrated its capability and efficiency through these case studies. Because of its high

design flexibility, the system is confidently expected to support additional case studies with minimal

system revision and tune-up.


Format:
PDF
Funding:
TR201407
Collection(s):
US Transportation Collection University Transportation Centers
Main Document Checksum:
[+]
urn:sha256:3efbdf0b0dbdb93e2acadd7c4130a84fd835b5c52393c203412ba722ea944f6c
Download URL:
https://rosap.ntl.bts.gov/view/dot/29136/dot_29136_DS1.pdf
File Type:

Supporting Files

• No Additional Files

More +