Modeling Soak-Time Distribution of Trips for Mobile Source Emissions Forecasting: Techniques and Applications

Nair, Harikesh S.; Bhat, Chandra R.; University of Texas at Austin. Center for Transportation Research

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Modeling Soak-Time Distribution of Trips for Mobile Source Emissions Forecasting: Techniques and Applications

2000-08-01
By Nair, Harikesh S. ; Bhat, Chandra R.

[PDF-275.91 KB]

English

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Creators:

Nair, Harikesh S. ; Bhat, Chandra R.

Nair, Harikesh S. ; Bhat, Chandra R. Less -
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Transfer Section
Subject/TRT Terms:

[+]

Computer Models Demographics Exhaust Gases First Starts Forecasting Land Use Metropolitan Areas Mobile Source Emissions Non-first Starts Operating Mode Fractions Soak Time Start Emissions Travel Surveys Vehicle Trip Starts
Publication/ Report Number:

FHWA/TX-0-1838-6
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas

United States ; Texas Less -
Edition:

Research Report (9/99-5/00)
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

The soak-time of vehicle trip starts is defined as the duration of time in which the vehicle's engine is not operating and that precedes a successful vehicle start. The temporal distribution of the soak-time in an area is an important determinant of area-wide mobile source emissions. In the current paper, we formulate and implement a methodology for modeling soak-time durations. The methodology involves estimation of models using vehicle trip data from household travel surveys and supplementary zonal demographic/land-use data. The effectiveness of the methodology lies in its easy application at the traffic zonal level within a metropolitan region to obtain zone-specific soak-time distributions by time-of-day and origin activity purpose. The methodology is applied to estimate soak-time duration models for the Dallas-Fort Worth area of Texas.
Format:

PDF
Funding:

0-1838
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:20e8c5c11aae99fc0543a04e55856696f190c10710cf2c41c552a986bf56093e
Download URL:

https://rosap.ntl.bts.gov/view/dot/14839/dot_14839_DS1.pdf
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Modeling Soak-Time Distribution of Trips for Mobile Source Emissions Forecasting: Techniques and Applications

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