Impact of data source on travel time reliability assessment.

Haghani, Ali; Zhang, Yanru; Hamedi, Masoud; University of Maryland (College Park, Md.). Dept. of Civil and Environmental Engineering

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Impact of data source on travel time reliability assessment.

2014-08-01
By Haghani, Ali ; Zhang, Yanru ; Hamedi, Masoud

[PDF-832.57 KB]

English

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Creators:

Haghani, Ali ; Zhang, Yanru ; Hamedi, Masoud

Haghani, Ali ; Zhang, Yanru ; Hamedi, Masoud Less -
Corporate Creators:

University of Maryland (College Park, Md.). Dept. of Civil and Environmental Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Bluetooth Technology Data Collection High Occupancy Vehicle Lanes Performance Measurement Probe Vehicles Real Time Information Reliability Travel Time
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.
Format:

PDF
Funding:

DTRT12-G-UTC03
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:26dbed59e4da16214baa5a3e10d2672716e1e6feb5aed8deffcc389eb6d2840f
Download URL:

https://rosap.ntl.bts.gov/view/dot/29047/dot_29047_DS1.pdf
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Impact of data source on travel time reliability assessment.

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