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1991
LEGIBILITY AND CONTRAST REQUIREMENTS OF VARIABLE-MESSAGE SIGNS

Transportation Research Record, Issue 1318, p. 137-141

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1990
COUNTERBEAM LIGHTING, A PROVEN ALTERNATIVE FOR THE LIGHTING OF THE ENTRANCE ZONES OF ROAD TUNNELS

Transportation Research Record, Issue 1287, p. 244-251

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1990
VISUAL APPEARANCE OF SURFACE DISTRESS IN PCC PAVEMENTS: I. CRACK LUMINANCE

Transportation Research Record, Issue 1260, p. 74-83

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1990
VISUAL APPEARANCE OF SURFACE DISTRESS IN PCC PAVEMENTS: II. CRACK MODELING

Transportation Research Record, Issue 1260, p. 84-90

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1989
MINIMUM PHOTOMETRIC PROPERTIES OF RETROREFLECTIVE SIGNING MATERIALS

Transportation Research Record, Issue 1247, p. 56-68

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1989
EFFECTS OF ASYMMETRIC DISTRIBUTIONS ON ROADWAY LUMINANCE

Transportation Research Record, Issue 1247, p. 89-96

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1989
PCDETECT: A REVISED VERSION OF THE DETECT SEEING DISTANCE MODEL

Transportation Research Record, Issue 1213, p. 11-20

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1989
SIGN LUMINANCE AS A METHODOLOGY FOR MATCHING DRIVER NEEDS, ROADWAY VARIABLES, AND SIGNING MATERIALS

Transportation Research Record, Issue 1213, p. 21-26

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1988
TRAFFIC ACCIDENT ANALYSIS AND ROADWAY VISIBILITY

Transportation Research Record, Issue 1172, 103 p.

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1988
A MOBILE ILLUMINATION EVALUATION SYSTEM

Transportation Research Record, Issue 1172, p. 68-73

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1987
TRAFFIC ACCIDENT ANALYSIS, VISIBILITY FACTORS, AND MOTORIST INFORMATION NEEDS

Transportation Research Record, Issue 1111, 155 p.

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1987
EVALUATION OF HEADLAMP SYSTEMS FOR NIGHTTIME SAFETY: THEIR RELATIONSHIP TO RETROREFLECTIVE TRAFFIC SIGN PERFORMANCE

Transportation Research Record, Issue 1149, pp 11-14

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1987
EVALUATION OF ALTERNATIVE SIGN-LIGHTING SYSTEMS TO REDUCE OPERATING AND MAINTENANCE COSTS (DISCUSSION AND CLOSURE)

Transportation Research Record, Issue 1111, pp 79-93

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1986-06
RESEARCH NEEDS RELATED TO SIGN LUMINANCE AND VISUAL COMPLEXITY OF HIGHWAY SIGNS

Transportation Research Circular, Issue 306, p. 3-4

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1986
MINIMUM RETROREFLECTANCE FOR NIGHTTIME VISIBILITY OF PAVEMENT MARKINGS

Transportation Research Record, Issue 1093, pp 43-47

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1985-12
VISUAL PERFORMANCE UNDER NIGHT DRIVING CONDITIONS

Transportation Research Circular, Issue 297, p. 5-6

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1985-12
USE OF COMPUTER GRAPHICS TO AID IN DESIGN OF PUBLIC LIGHTING SYSTEMS

Transportation Research Circular, Issue 297, p. 6

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1985-12
SIGN LUMINANCE REQUIREMENTS FOR VARIOUS BACKGROUND COMPLEXITIES

Transportation Research Circular, Issue 297, p. 15-16

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1985
EVALUATION OF REFLECTORIZED SIGN SHEETING FOR NONILLUMINATED FREEWAY OVERHEAD GUIDE SIGNS

Transportation Research Record, Issue 1010, pp 80-84

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1985
OPTIMAL AND MINIMAL LUMINANCE CHARACTERISTICS FOR RETROREFLECTIVE HIGHWAY SIGNS

Transportation Research Record, Issue 1027, pp 53-57

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1985
A MICROCOMPUTER PROGRAM FOR USE WITH THE AMERICAN NATIONAL STANDARD PRACTICE FOR ROADWAY LIGHTING

Transportation Research Record, Issue 1027, pp 72-77

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1985
DRIVER INFORMATION NEEDS AND VISIBILITY OF TRAFFIC CONTROL DEVICES

Transportation Research Record, Issue 1027, 81p

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1984
COST-EFFECTIVENESS EVALUATION OF RURAL INTERSECTION LEVELS OF ILLUMINATION

Transportation Research Record, Issue 996, pp 44-47

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1981
VISIBILITY OF CIRCULAR TRAFFIC-SIGNAL INDICATIONS

Transportation Research Record, Issue 811, pp 7-14

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1981
STANDARDIZATION OF LIGHT SIGNALS FOR ROAD TRAFFIC CONTROL (ABRIDGMENT)

Transportation Research Record, Issue 811, p. 14-15

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