Yellow Transition Lane Control Signal Symbols for Freeway Traffic Management

Ullman, Gerald L.; Parma, Kelly D.; Peoples, Melisa D.; Trout, Nada D.

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Yellow Transition Lane Control Signal Symbols for Freeway Traffic Management

1996-09-01
By Ullman, Gerald L. ; Parma, Kelly D. ; Peoples, Melisa D.

File Language:

English

Details

Creators:

Ullman, Gerald L. ; Parma, Kelly D. ; Peoples, Melisa D. ; Trout, Nada D.
Corporate Creators:

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

Texas. Dept. of Transportation. Research and Technology Transfer Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/TX-9711498-2
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas
Edition:

Interim: September 1994-September 1996
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

This report documents the research performed to assess the effectiveness and applicability of yellow diagonal and downward arrows for freeway traffic management purposes. Researchers examined motorist understanding of and perceived usefulness of the arrows through surveys of San Antonio motorists where these indications are being utilized as part of the TransGuide system. These results were compared to similar data obtained from motorists in Fort Worth where TxDOT operates a traffic management system utilizing a yellow X. Researchers also interviewed operators of the TransGuide system to assess their opinions of the yellow arrow indications, and to identify any difficulties they have experienced in utilizing these symbols in their daily traffic management activities. Finally, researchers performed a series of field studies to assess how drivers respond to yellow diagonal arrows and yellow Xs used to transition between a lane open and a lane closed condition.
Format:

PDF
Funding:

0-1498
Download URL:

https://rosap.ntl.bts.gov/view/dot/82907/dot_82907_DS1.pdf
File Type:

[PDF - 2.69 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:320dbce8a2d8783059a1f73596a2c344c117e8ead7a44a1e73c7c40f1b9c6398d81d2ed5af193c12f602115c932860033c4ae487812afcddf0682f76457c7419

File Language:

English

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