Lane Distribution Factors for Design

Cunagin, Wiley D

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Lane Distribution Factors for Design

1987-04-01
By Cunagin, Wiley D

File Language:

English

Details

Creators:

Cunagin, Wiley D
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Directional Distributions Of Hourly Hourly Variations Lane Distribution Of Traffic Pavement Design Percent Trucks Rural Areas Truck Lane Distribution Truck Lanes Trucks Truck Traffic Urban Areas
Publication/ Report Number:

FHWA/TX-86/476-2F
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Final Report: September 1984 - November 1986
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

This report is the final report of Study 2-8-85-476, entitled "Investigate and Improve Current Method of Predicting Load Equivalents for Design." The report gives details of the results of a survey of truck lane distribution on Interstate multilane facilities in Texas. The data were collected for 24 consecutive hours during the summer at nine locations in both directions of 4-lane, 6-lane, and 8-lane facilities, and in urban and rural settings Summary information is presented in the report and compared with current design practice in Texas, recommendations in the current AASHTO pavement design guide, predictions from the NCHRP Report 277 equations for truck lane distributions. Although the data are not extensive enough to warrant the development of new predictive equations, they do show significant deviations from the previous and current methods and indicate that even the NCHRP Report 277 equations are conservative when compared with Texas traffic conditions. The effects of travel direction, urban or rural environment, and percent trucks in the traffic stream appear to be significant in altering the truck lane distributions.
Format:

PDF
Funding:

2-8-85-476
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:78b9d0fac184da12a49afc84a6b1b3dbe85d4e66c4912c73dc30bf61fd1b66ee078cea27089e041d07164c4594b8fbe13806449a181f1d073a82addfdb342433
Download URL:

https://rosap.ntl.bts.gov/view/dot/83797/dot_83797_DS1.pdf
File Type:

[PDF - 1010.98 KB ]

File Language:

English

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