Investigation of speed estimation using single loop detectors.

Guo, Jinhua.; Xia, Jingxin.; Smith, Brian L., 1967-

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Investigation of speed estimation using single loop detectors.

2008-05-15
By Guo, Jinhua. ; Xia, Jingxin. ; Smith, Brian L., 1967-

File Language:

English

Details

Creators:

Guo, Jinhua. ; Xia, Jingxin. ; Smith, Brian L., 1967-
Corporate Contributors:

University of Virginia. Center for Transportation Studies ; United States. Department of Transportation. Research and Innovative Technology Administration ; Mid-Atlantic Universities Transportation Center
Subject/TRT Terms:

Instruments For Measuring Speed Or Velocity Intelligent Transportation Systems Kalman Filter Loop Detectors Single Loop Traffic Operations Traffic Speed Measurement
Publication/ Report Number:

Research report (University of Virginia. Center for Transportation Studies) ; no. UVACTS-14-5-126.
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

University of Virginia. Center for Transportation Studies
Abstract:

The ability to collect or estimate accurate speed information is of great importance to a large number of

Intelligent Transportation Systems (ITS) applications. Estimating speeds from the widely used single

inductive loop sensor has been a difficult, yet important challenge for transportation engineers. Based on

empirical evidence observed from the sensor data from two metropolitan regions in Northern Virginia and

California, this research effort developed a Kalman filter model to perform speed estimation for congested

traffic. Taking advantage of the coexistence of dual loop and single loop stations in typical freeway

management systems, a calibration procedure was proposed for seeding and initiating the algorithm.

Empirical evaluation showed that the proposed algorithm can produce accurate speed estimates (on the order

of 1-3 miles/hour error) under congested traffic conditions.
Format:

PDF
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

urn:sha-512:f096af985e05a2872b7be14658f9444d5e0210b23eca40dde78e3d69da445eaa5f6520a4da19893483f4d0b8527ae993b0ce9bc79bef27d6955d7aca5937a478
Download URL:

https://rosap.ntl.bts.gov/view/dot/16553/dot_16553_DS1.pdf
File Type:

[PDF - 203.48 KB ]

File Language:

English

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