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Title:

USE OF LOCAL LINEAR REGRESSION MODEL FOR SHORT-TERM TRAFFIC FORECASTING

Accession Number:

00965461

Record Type:

Component

Availability:

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500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/153503.aspx

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Order URL: http://worldcat.org/isbn/0309085721

Abstract:

The traffic-forecasting model, when considered as a system with inputs of historical and current data and outputs of future data, behaves in a nonlinear fashion and varies with time of day. Traffic data are found to change abruptly during the transition times of entering and leaving peak periods. Accurate and real-time models are needed to approximate the nonlinear time-variant functions between system inputs and outputs from a continuous stream of training data. A proposed local linear regression model was applied to short-term traffic prediction. The performance of the model was compared with previous results of nonparametric approaches that are based on local constant regression, such as the k-nearest neighbor and kernel methods, by using 32-day traffic-speed data collected on US-290, in Houston, Texas, at 5-min intervals. It was found that the local linear methods consistently showed better performance than the k-nearest neighbor and kernel smoothing methods.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1836, Initiatives in Information Technology and Geospatial Science for Transportation.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Sun, H Q
Liu, H X
Xiao, Hailin
He, R R
Ran, Bin

Pagination:

p. 143-150

Publication Date:

2003

Serial:

Transportation Research Record

Issue Number: 1836
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309085721

Features:

Figures (7) ; References (23) ; Tables (1)

Uncontrolled Terms:

Geographic Terms:

Subject Areas:

Highways; Planning and Forecasting; I72: Traffic and Transport Planning

Files:

TRIS, TRB, ATRI

Created Date:

Nov 7 2003 12:00AM

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