00639988

Component

http://onlinepubs.trb.org...trr/1993/1403/1403-008.pdf

https://scholar.google.co...lman&publication_year=1993

The results of a human factors laboratory study designed to investigate current motorist interpretations of lane control signals in a freeway driving environment are presented. Subjects were recruited to view a drawing of a freeway scene that included a sign structure supporting lane control signals over each lane. The type of symbols displayed over the lanes were then varied. Subjects were asked what they believed each signal indicated about the condition of the lane under the signal and what the correct driving response would be to that signal. The results of the study showed that most subjects interpreted the green arrow as indicating that a lane was open and that they would proceed in that lane as normal. The red X was most commonly interpreted as indicating that the lane was closed and that drivers should exit that lane. However, interpretations of the yellow X, defined in the "Manual on Uniform Traffic Control Devices" as a transition signal between the green arrow and the red X, were not as consistent. More important, the interpretation of this symbol was shown to be dependent on what other symbols were present in the overall display configuration at a given point on the freeway.

This paper appears in Transportation Research Record No. 1403, Driver Performance: Measurement and Modeling, IVHS, Information Systems, and Simulation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00669186

English

p. 49-56

1993

Transportation Research Record

Figures (5) ; References (5) ; Tables (5)

Color; Comprehension; Drivers; Freeways; Human factors; Laboratory studies; Lane use control signals; Symbols; Traffic signals

Manual on Uniform Traffic Control Devices

Interpretation

Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control

TRIS, TRB, ATRI

Dec 20 1993 12:00AM

• A SIMULATION MODEL FOR DRIVER'S USE OF IN-VEHICLE INFORMATION SYSTEMS
• BROADCAST PARKING INFORMATION: BEHAVIORAL IMPACTS AND DESIGN REQUIREMENTS
• DESIGN OF TRAVTEK AUDITORY INTERFACE
• DRIVER COMPREHENSION OF REGULATORY SIGNS, WARNING SIGNS, AND PAVEMENT MARKINGS
• EFFECT OF AMBIENT LIGHTING AND DAYTIME RUNNING LIGHT (DRL) INTENSITY ON PERIPHERAL DETECTION OF DRL
• EYE SCANNING RULES FOR DRIVERS: HOW DO THEY COMPARE WITH ACTUAL OBSERVED EYE SCANNING BEHAVIOR?
• HIERARCHY OF SYMBOLIC COMPUTER-GENERATED REAL-TIME VEHICLE DYNAMICS MODELS
• MOTION ALGORITHM FOR LARGE-DISPLACEMENT DRIVING SIMULATOR
• MOTORIST INFORMATION NEEDS AND CHANGEABLE MESSAGE SIGNS FOR ADVERSE WINTER TRAVEL
• PRESENTING DESCRIPTIVE INFORMATION IN VARIABLE MESSAGE SIGNING
• REFLECTOR POSTS--SIGNS OF DANGER?
• SUBSIDIARY TASK MEASURES OF DRIVER MENTAL WORKLOAD: A LONG-TERM FIELD STUDY