Photometric Indicators of Headlamp Performance (Sullivan and Flannagan), Report No. UMTRI-2009-18, June 2009.

Survey of HID Headlamps in Use in the U.S. by Region and Time of Night (Flannagan, Buonarosa, Devonshire, Schoettle, and Takenobu), Report No. UMTRI-2008-56, November 2008.

Evaluation of Recent U.S. Tungsten-Halogen and HID Headlamps Using CHESS (Flannagan, Sullivan, and Schoettle), Report No. UMTRI-2008-55, November 2008.

LEDs and Power Consumption of Exterior Automotive Lighting: Implications for Gasoline and Electric Vehicles (Schoettle, Sivak, and Fujiyama), Report No. UMTRI-2008-48, October 2008.

Real-World Frequency of Use of Lighting Equipment (Buonarosa, Sayer, and Flannagan), Report No. UMTRI-2008-14, April 2008.

Prevalence of LED Light Sources on Vehicles Sold in the U.S. (Schoettle, Sivak, and Takenobu), Report No. UMTRI-2008-12, April 2008.

Benefits of Headlamp Leveling and Cleaning for Current U.S. Low Beams (Flannagan, Sivak, and Schoettle), Report No. UMTRI-2007-46, November 2007.

Availability and Implementation Trends of Daytime Running Lights in the U.S. (Takenobu, Schoettle, and Sivak), Report No. UMTRI-2007-33, August 2007.

Market-Weighted Trends in the Design Attributes of Headlamps in the U.S. (Schoettle, Sivak, and Takenobu), Report No. UMTRI-2007-20, June 2007.

Characteristics of Nighttime Pedestrian Crashes: Implications for Headlighting (Sullivan and Flannagan), Report No. UMTRI-2007-3, May 2007.

Improving Pedestrian Detection with a Simple Display for Night Vision Systems (Tsimhoni, Flannagan, Mefford, and Takenobu), Report No. UMTRI-2007-2, March 2007.

Recent Changes in Headlamp Illumination Directed Toward Traffic Signs (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2006-31, September 2006.

Analysis of the Visibility of Near-Infrared Illuminators (Tsimhoni, Flannagan, and Schoettle), Report No. UMTRI-2006-10, June 2006.

Real-World Use of High-Beam Headlamps (Mefford, Flannagan, and Bogard), Report No. UMTRI-2006-11, April 2006.

Implications of Fatal and Nonfatal Crashes for Adaptive Headlighting (Sullivan and Flannagan), Report No. UMTRI-2006-1, April 2006.

Potential Visibility Gains on Straight and Curved Roads from Proportional Increases in Current Low-Beam Intensities (Sivak, Schoettle, Minoda, and Flannagan), Report No. UMTRI-2005-34, November 2005.

Rearview Mirror Glare with Varying Vehicle Geometries (Flannagan), Report No. UMTRI-2005-25, September 2005.

Pedestrian Detection with Night Vision Systems Enhanced by Automatic Warnings (Tsimhoni, Flannagan, and Minoda), Report No. UMTRI-2005-23, September 2005.

Blue Content of LED Headlamps and Discomfort Glare (Sivak, Schoettle, Minoda, and Flannagan), Report No. UMTRI-2005-2, February 2005.

Pedestrian Detection with Near and Far Infrared Night Vision Enhancement (Tsimhoni, Bärgman, Minoda, and Flannagan), Report No. UMTRI-2004-38, December 2004.

Mercury-Free HID Headlamps: Glare and Color Rendering (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2004-37, November 2004.

Recent Trends in the Performance of Tungsten-Halogen and HID Low Beams in the U.S. (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2004-25, October 2004.

A Market-Weighted Description of Low-Beam Headlighting Patterns in the U.S.: 2004 (Schoettle, Sivak, Flannagan, and Kosmatka), Report No. UMTRI-2004-23, September 2004.

Optimal Strategies for Adaptive Curve Lighting (Sivak, Schoettle, Flannagan, and Minoda), Report No. UMTRI-2004-22, August 2004.

Driver Performance and Workload Using a Night Vision System (Sullivan, Bärgman, Adachi, and Schoettle), Report No. UMTRI-2004-8, March 2004.

Chromatic Aberrations Near the Cutoff of Low-Beam Headlamps (Sivak, Flannagan, Schoettle, and Adachi), Report No. UMTRI-2004-6, March 2004.

LED Headlamps: Glare and Color Rendering (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2003-39, November 2003.

A Market-Weighted Description of Low-Beam Headlighting Patterns in Europe: 2003 (Schoettle, Sivak, Flannagan, and Kosmatka), Report No. UMTRI-2003-37, November 2003.

Functional Requirements for Daytime Running Lights (Rumar), Report No. UMTRI-2003-11, May 2003.

High-Beam Headlamp Usage on Unlighted Rural Roadways (Sullivan, Adachi, Mefford, and Flannagan), Report No. UMTRI-2003-2, February 2003.

Low-Beam Headlamp Illumination at Very High Angles  (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2002-33, November 2002.

The Illuminated Surface Areas of HID and Tungsten-Halogen Headlamps in the U.S. (Schoettle, Sivak, Flannagan, and Adachi), Report No. UMTRI-2002-32, November 2002.

Lighting, Signaling, and Rearview Mirrors for Large Trucks: A Review of Human Factors Considerations (Sivak, Schoettle, and Flannagan), Report No. UMTRI-2002-30, November 2002.

Hydrophobic Treatment of Glass Headlamp Lenses and the Effect on Light Output (Sayer, Mefford, and Nakata), Report No. UMTRI-2002-25, November 2002.

Performance of the First Generation of HID Headlamps in the U.S. (Sivak, Flannagan, Schoettle, and Nakata), Report No. UMTRI-2002-14, June 2002.

Night Vision Enhancement Systems: What Should They Do and What More Do We Need to Know? (Rumar), Report No. UMTRI-2002-12, June 2002.

The Locations of Signaling and Lighting Equipment on Passenger Vehicles Sold in the U.S. (Schoettle, Sivak, and Nakata), Report No. UMTRI-2002-8, May 2002.

Driving Performance with and Preference for HID Headlamps (Sivak, Flannagan, Schoettle, and Mefford), Report No. UMTRI-2002-3, February 2002.

The Appearance of Bending Light From Other Vehicles (Sullivan, Flannagan, and Schoettle), Report No. UMTRI-2002-2, February 2002.

The Safety Potential of Current and Improved Front Fog Lamps (Flannagan), Report No. UMTRI-2001-40, November 2001.

A Worldwide Perspective on Future Automobile Lighting (Rumar), Report No. UMTRI-2001-35, November 2001.

Characteristics of Pedestrian Risk in Darkness (Sullivan and Flannagan), Report No. UMTRI-2001-33, November 2001.

Benefits of Applying Adaptive Lighting to the U.S. and European Low-Beam Patterns (Sivak, Flannagan, Schoettle, and Nakata), Report No. UMTRI-2001-20, June 2001.

High-Beam and Low-Beam Headlighting Patterns in the U.S. and Europe at the Turn of the Millennium (Schoettle, Sivak, and Flannagan), Report No. UMTRI-2001-19, May 2001.

Rise-Time Requirements for High Intensity Discharge Headlamps (Sivak, Flannagan, Schoettle, and Nakata), Report No. UMTRI-2001-14, April 2001.

Visual Effects of Blue-Tinted Tungsten-Halogen Headlamp Bulbs (Sullivan and Flannagan), Report No. UMTRI-2001-9, April 2001.

Field Measurements of Direct and Rearview-Mirror Glare from Low-Beam Headlamps (Sivak, Flannagan, Schoettle, and Nakata), Report No. UMTRI-2001-3, January 2001.

Simultaneous Masking of Front Turn Signals by Headlamps and Other Front Lamps (Sivak, Flannagan, Schoettle, and Nakata), Report No. UMTRI-2000-44, November 2000.

Relative Merits of the U.S. and ECE High-Beam Maximum Intensities and of Two- and Four-Headlamp Systems (Rumar), Report No. UMTRI-2000-41, November 2000.

A Market-Weighted Description of Low-Beam Headlighting Patterns in Europe (Sivak, Flannagan, and Schoettle), Report No. UMTRI-2000-36, September 2000.

The Use of Parking and Auxiliary Lamps for Traffic Sign Illumination (Sivak, Flannagan, and Miyokawa), Report No. UMTRI-2000-2, January 2000.

A First Look at Visually Aimable and Harmonized Low-Beam Headlamps (Sivak, Flannagan, and Miyokawa), Report No. UMTRI-2000-1, January 2000.

Subjective and Objective Aspects of Headlamp Glare: Effects of Size and Spectral Power Distribution (Flannagan), Report No. UMTRI-99-36, November 1999.

Nighttime Visibility of Retroreflective Pavement Markings From Trucks Versus Cars (Rumar, Sivak, Traube, and Miyokawa), Report No. UMTRI-99-34, November 1999.

Assessing the Potential Benefit of Adaptive Headlighting Using Crash Databases (Sullivan and Flannagan), Report No. UMTRI-99-21, September 1999.

Acceptable Delays in Switching Between Primary and Secondary Light Sources in Distributed Lighting (Sivak and Flannagan), Report No. UMTRI-99-10, March 1999.

Quantitative Comparisons of Factors Influencing The Performance of Low-Beam Headlamps (Sivak, Flannagan, and Miyokawa), Report No. UMTRI-98-42, October 1998.

Conspicuity and Glare Properties of Daytime Running Lights: Effects of Lamp Separation and Intensity (Sivak, Flannagan, Traube, and Miyokawa), Report No. UMTRI-98-30, August 1998.

Do Changes in Voltage Result in Proportional Changes Throughout Headlamp Beam Patterns? (Sivak, Flannagan, Traube, and Miyokawa), Report No. UMTRI-98-27, August 1998.

Headlamp History and Harmonization (Moore), Report No. UMTRI-98-21, June 1998.

Vehicle Lighting and the Aging Population (Rumar), Report No. UMTRI-98-9, June 1998.

The Influence of Lens Haze on Headlamp Beam Patterns (Sivak, Flannagan, Kojima, and Traube), Report No. UMTRI-98-13, April 1998.

Qualitative Evaluation of Headlamp Beam-Pattern Uniformity (Schumann, Sivak, Flannagan, Traube, and Kojima), Report No. UMTRI-97-43, October 1997.

A Market-Weighted Description of Low-Beam Headlighting Patterns in the U.S. (Sivak, Flannagan, Kojima, and Traube), Report No. UMTRI-97-37, September 1997.

The Influence of Stimulus Duration on Discomfort Glare for Persons with and without Visual Correction (Sivak, Flannagan, Traube, and Kojima), Report No. UMTRI-97-23, May 1997.

Adaptive Illumination Systems for Motor Vehicles: Towards a More Intelligent Headlighting System (Rumar), Report No. UMTRI-97-7, February 1997.

Just Noticeable Differences for Low-Beam Headlamp Intensities (Sayer, Flannagan, Sivak, Kojima, and Flannagan), Report No. UMTRI-97-4, February 1997.

A Simulation of the Effects of Haze in Headlamp Lenses on Beam Patterns: A Preliminary Study (Sivak, Flannagan, Hashimoto, and Kojima), Report No. UMTRI-97-1, January 1997.

The Locations of Headlamps and Driver Eye Positions in Vehicles Sold in the U.S.A. (Sivak, Flannagan, Budnik, Flannagan, and Kojima), Report No. UMTRI-96-36, November 1996.

Fog Lamps: Frequency of Installation and Nature of Use (Sivak, Flannagan, Traube, Hashimoto, and Kojima), Report No. UMTRI-96-31, October 1996.

Effects of Overall Low-Beam Intensity on Seeing Distance in the Presence of Glare (Flannagan, Sivak, Traube, and Kojima), Report No. UMTRI-96-26, July 1996.

Effects of Realistic Dirt Levels on Light Distribution of Low-Beam Headlamps (Sivak, Flannagan, Traube, Kojima, and Aoki), Report No. UMTRI-96-10, March 1996.

Effects of Foreground Illumination, Wet Pavement, and Driver Age on Pedestrian Detection Distance (Flannagan, Sivak, Traube, and Aoki), Report No. UMTRI-95-23, November 1995.

Glare and Mounting Height of High Beams Used as Daytime Running Lamps (Sivak, Flannagan, and Aoki), Report No. UMTRI-95-40, November 1995.

Effects of the Lateral Position of the Low-Beam Headlamps on the Perceived Distance of Vehicles (Flannagan, Sivak, Aoki, Traube, and Harrison), Report No. UMTRI-95-21, July 1995.

Headlamp Beam-Pattern Shifts with Thermoplastic Complex Reflectors: A Comparison to Shifts from Other Causes (Sivak and Flannagan), Report No. UMTRI-95-17, July 1995.

Light Output of U.S., European, and Japanese Low-Beam Headlamps (Sivak, Flannagan, and Sato), Report No. UMTRI-93-36, September 1993.

The Relative Importance of Horizontal and Vertical Aim of Low-Beam Headlamps (Sivak, Flannagan, and Sato), Report No. UMTRI-93-26, July 1993.

Discomfort Glare from High-Intensity Discharge Headlamps: Effects of Context and Experience (Flannagan, Sivak, Battle, Sato, and Traube), Report No. UMTRI-93-10, March 1993.

In-Traffic Evaluations of High-Intensity Discharge Headlamps: Overall Performance and Color Appearance of Objects (Sivak, Flannagan, Traube, Battle, and Sato), Report No. UMTRI-93-3, January 1993.

Ranges of Stop Sign Chromaticity under Tungsten-Halogen and High-Intensity Discharge Illumination (Flannagan, Sivak, Gellatly, and Luoma), Report No. UMTRI-92-17, May 1992.

A Field Study of Discomfort Glare from High-Intensity Discharge Headlamps (Flannagan, Sivak, Gellatly, and Luoma), Report No. UMTRI-92-16, April 1992.

Joint Effects of Wavelength and Ambient Luminance on Discomfort Glare from Monochromatic and Bichromatic Sources (Flannagan, Sivak, and Gellatly), Report No. UMTRI-91-42, November 1991.

Subjective Preferences for the Red Color of Stop Signs: Implications for the Design of High-Intensity-Discharge Headlamps (Sivak, Flannagan, Gellatly, and Luoma), Report No. UMTRI-91-27, June 1991.

Effect of Wavelength on Discomfort Glare from Monochromatic Sources (Flannagan, Sivak, Ensing, and Simmons), Report No. UMTRI-89-30, November 1989.

Color of Retroreflective Traffic Sign Materials when Illuminated by High-Intensity-Discharge Headlights (Simmons, Sivak, and Flannagan), Report No. UMTRI-89-7, March 1989.

Effect of Headlamp Area on Discomfort Glare (Sivak, Simmons, and Flannagan), Report No. UMTRI-88-41, October 1988.