Side Friction for Superelevation on Horizontal Curves Vol I: [Executive Summary]

MacAdam, C.C.; Fancher, P. S.; Segel, L.

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Side Friction for Superelevation on Horizontal Curves Vol I: [Executive Summary]

1985-01-01
By MacAdam, C.C. ; Fancher, P. S. ; Segel, L.

File Language:

English

Details

Creators:

MacAdam, C.C. ; Fancher, P. S. ; Segel, L.
Corporate Creators:

University of Michigan Transportation Research Institute
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

Computer Models Highway Curves Highway Design Highways Turning Lanes Vehicle Tests
Publication/ Report Number:

FHWA-RD-86-024
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration
Abstract:

The basic objective of this study has been to address the issue of how adequate point-mass representations are in predicting friction requirements for actual vehicles operating along superelevated curves. The project focused on this and related questions by combining computer analysis and full-scale vehicle testing. Simple-to-use models for predicting the friction factor requirements at individual wheel locations were first developed and applied to the steady-turning condition. An existing comprehensive computer model used for predicting transient or non-steady maneuvering situations was also employed to analyze friction demand while maneuvering along superelevated curves. Highway tests were then performed for two passenger cars and a five-axle tractor-semitrailer to collect representative test data and assist invaliding the predictions of the computer models. Finally, a sensitivity analysis was performed to illustrate the relative importance and interactions of various vehicle parameters and highway geometrics in influencing side friction requirements.
Format:

PDF
Collection(s):

US Transportation Collection Federal Highway Administration
Main Document Checksum:

urn:sha-512:1048ce58525bbe2acb611f5c1b8e7219bc65e0107f4d4c4674048a24f7acc2936478577d3c2044708904e9b348d7112406a6b8d6b4d8933c4f6c7d02f2e9f7cf
Download URL:

https://rosap.ntl.bts.gov/view/dot/29442/dot_29442_DS1.pdf
File Type:

[PDF - 345.11 KB ]

File Language:

English

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