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TSC Papers
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The UC Berkeley Traffic Safety Center (TSC) aims to reduce traffic fatalities and injuries in California through multi-disciplinary collaboration in education, research, and outreach. TSC faculty, staff, and associates conduct a wide range of research and technical assistance, including:
- human factors in crashes involving vehicles, pedestrians and bicyclists;
- applications of intelligent intersection collision warning and control systems;
- evaluation of traffic safety interventions;
- community involvement in the implementation of diverse projects from pedestrian safety to child passenger safety;
- data analysis on injury prevention/traffic safety problems in California;
- traffic safety issues among specific populations, including older drivers and communities of color.
In addition, the TSC is sponsoring multidisciplinary courses on injury prevention and traffic safety in the School of Public Health and the Department of Civil and Environmental Engineering at UC Berkeley and has developed partnerships with local governments, academic institutions, non-profit organizations, and advocacy groups statewide to look at a variety of traffic safety issues facing communities in California.
If you would like to be notified about new postings related to a topic of interest, define a search and use the 'Save Search' option to be notified when new matches for the search appear on the site.
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PAPERS FROM 2008
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 | Meghan F. Mitman and David R. Ragland (July 1, 2008) Driver/Pedestrian Understanding and Behavior at Marked and Unmarked Crosswalks |
 | Taesung Hwang, Koohong Chung, David Ragland, and Chin-Yao Chan (April 1, 2008) Identification of High Collision Concentration Locations Under Wet Weather Conditions |
 | Meghan Felig Mitman, David R. Ragland, and Charles V. Zegeer (April 1, 2008) The Marked Crosswalk Dilemma: Uncovering Some Missing Links in a 35-Year Debate |
 | Rhianna JoIris Babka, Joseph Zheng, Jill Cooper, and David R. Ragland (April 1, 2008) Removing Barriers for Seniors at Transit Stops and Stations and the Potential for Transit Ridership Growth |
 | Murray Lee, Marla Orenstein, Maxwell J. Richardson, and David R. Ragland (April 1, 2008) Health Impacts of the School Commute |
 | Nicolas Gutierrez, Marla Orenstein, Jill Cooper, Thomas Rice, and David R. Ragland (April 1, 2008) Pedestrian and Bicyclist Safety Effects of the California Safe Routes to School Program |
 | Douglas L. Cooper and David R. Ragland (April 1, 2008) Addressing Inappropriate Driver Behavior at Rail-Highway Crossings |
 | Ryan Greene-Roesel, Mara Chagas Diogenes, David R. Ragland, and Luis Antonio Lindau (April 1, 2008) Effectiveness of a Commercially Available Automated Pedestrian Counting Device in Urban Environments: Comparison with Manual Counts |
 | Michael Jones and Lauren Buckland (April 1, 2008) Estimating Bicycle and Pedestrian Demand in San Diego |
 | Kitae Jang, Koohong Chung, David R. Ragland, and Ching-Yao Chan (April 1, 2008) Comparison of collisions on HOV facilities with limited and continuous access |
PAPERS FROM 2007
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 | David R. Ragland and Meghan Fehlig Mitman (July 1, 2007) Driver/Pedestrian Understanding and Behavior at Marked and Unmarked Crosswalks |
 | David R. Ragland and Ching-Yao Chan (May 18, 2007) High Collision Concentration Location: Table C Evaluation and Recommendations |
 | Koohong Chung, Ching-Yao Chan, Kitae Jang, David R. Ragland, and Yong-Hee Kim (April 1, 2007) HOV Lane Configurationsand Collision Distribution on Freeway Lanes – An Investigation of Historical Collision Data in California |
 | Douglas L. Cooper, Kara E. MacLeod, and David R. Ragland (April 1, 2007) Rail Crossings: A Strategy to Select Countermeasure Improvements for Rail-Highway Crossings in California |
 | Ipsita Banerjee and David R. Ragland (April 1, 2007) Evaluation of Countermeasures: A Study on the Effect of Impactable Yield Signs Installed at Intersections in San Francisco |
 | Koohong Chung and David R. Ragland (April 1, 2007) A Method for Generating a Continuous Risk Profile for Highway Collisions |
 | Noah Raford, Alain Chiaradia, and Jorge Gil (April 1, 2007) Space Syntax: The Role of Urban Form in Cyclist Route Choice in Central London |
 | Ahn Nguyen and David R. Ragland (April 1, 2007) San Pablo Avenue Pedestrian Signal Timing Optimization |
 | Mara Chagas Diogenes, Ryan Greene-Roesel, Lindsay S. Arnold, and David R. Ragland (April 1, 2007) Pedestrian Counting Methods at Intersections: a Comparative Study |
 | Meghan Fehlig Mitman and David R. Ragland (April 1, 2007) What They Don’t Know Can Kill Them |
 | Joseph E. Barton and Theodore E. Cohn (April 1, 2007) A 3D Computer Simulation Test of the Leibowitz Hypothesis |
 | S. Brian Huey and David Ragland (April 1, 2007) Changes in Driver Behavior Resulting from Pedestrian Countdown Signals |
 | Douglas L. Cooper and David R. Ragland (April 1, 2007) Driver Behavior at Rail Crossings: Cost-Effective Improvements to Increase Driver Safety at Public At-Grade Rail-Highway Crossings in California |
 | Marla R. Orenstein, Nicolas Gutierrez, Thomas M. Rice, Jill F. Cooper, and David R. Ragland (April 1, 2007) Safe Routes to School Safety and Mobility Analysis |
 | Fanping Bu, Ryan Greene-Roesel, Mara Chagas Diogenes, and David R. Ragland (March 1, 2007) Estimating Pedestrian Accident Exposure: Automated Pedestrian Counting Devices Report
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 | Ryan Greene-Roesel, Mara Chagas Diogenes, and David R. Ragland (March 1, 2007) Estimating Pedestrian Accident Exposure: Approaches to a Statewide Pedestrian Exposure Database |
 | Ryan Greene-Roesel, Mara Chagas Diogenes, and David R. Ragland (March 1, 2007) Estimating Pedestrian Accident Exposure: Protocol Report |
PAPERS FROM 2006
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 | Huong Bui, Lindsay S. Arnold, Jill F. Cooper, and David R. Ragland (August 1, 2006) Teens and Driving in California: Summary of Research and Best Practices |
 | Steven E. Shladover, Joel VanderWerf, and David R. Ragland (April 1, 2006) Providing Intersection Decision Support under Challenging Conditions |
 | Noah Raford and David Ragland (April 1, 2006) Pedestrian Volume Modeling for Traffic Safety and Exposure Analysis: The Case of Boston, Massachusetts |
 | Judy Geyer, Noah Raford, David Ragland, and Trinh Pham (April 1, 2006) The Continuing Debate about Safety in Numbers—Data from Oakland, CA |
 | David R. Ragland, Sofia Arroyo, Steven E. Shladover, James A. Misener, and Ching-Yao Chan (April 1, 2006) Gap acceptance for vehicles turning left across on-coming traffic: Implications for Intersection Decision Support design |
PAPERS FROM 2005
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 | David R. Ragland, Sofia Arroyo, Steven E. Shladover, James A. Misener, and Ching-Yao Chan (December 1, 2005) Gap acceptance for vehicles turning left across on-coming traffic: Implications for |
 | Judy Geyer, Noah Raford, David Ragland, and Trinh Pham (December 1, 2005) The Continuing Debate about Safety in Numbers—Data From Oakland, CA |
 | Noah Raford and David R. Ragland (December 1, 2005) Pedestrian Volume Modeling for Traffic Safety and Exposure Analysis: |
 | Steven E. Shladover, Joel VanderWerf, and David R. Ragland (December 1, 2005) Providing Intersection Decision Support under Challenging Conditions |
 | Jill F. Cooper, Tammy R. Wilder, Elena Lankina, Judy A. Geyer, and David R. Ragland (August 15, 2005) Traffic Safety Among Latino Populations in California: Current Status and Policy Recommendations |
 | Emily S. Johnson, David R. Ragland, Jill F. Cooper, and Terri O'Connor (August 1, 2005) Pedestrian and Bicycle Safety Evaluation for the City of Emeryville at Four Intersections |
PAPERS FROM 2004
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 | Ipsita Banerjee, Steven E. Shladover, James A. Misener, Ching-Yao Chan, and David R. Ragland (November 15, 2004) Impact of Pedestrian Presence on Movement of Left-Turning Vehicles: Method, Preliminary Results & Possible Use in Intersection Decision Support |
 | Emily Johnson, Judy A. Geyer, Nirmeet Rai, and David R. Ragland (November 15, 2004) Low Income Childhood Pedestrian Injury: Understanding the Disparate Risk |
 | Kara E. MacLeod, Judy A. Geyer, William A. Satariano, and David R. Ragland (November 15, 2004) The Association Between Health Problems and Driver Status Among Older Adults |
 | Ted R. Brown, Judy A. Geyer, Azita Taghavy, Brian P. Mitchell, and David R. Ragland (November 15, 2004) Pre-hospital Care of Road Traffic Injuries in Chiang Mai, Thailand |
 | Jill F. Cooper, Kara E. MacLeod, and David R. Ragland (November 15, 2004) Evaluation of the California Child Passenger Safety Initiative |
 | Judy A. Geyer and David R. Ragland (November 15, 2004) Vehicle Occupancy and Crash Risk |
PAPERS FROM 2003
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 | Allyson K. Bechtel, Judy Geyer, and David R. Ragland (December 19, 2003) A Review of ITS-Based Pedestrian Injury Countermeasures |
 | Allyson K. Bechtel, Kara E. MacLeod, and David R. Ragland (December 17, 2003) Oakland Chinatown Pedestrian Scramble: An Evaluation |
 | Noah Raford and David R. Ragland (December 11, 2003) Space Syntax: An Innovative Pedestrian Volume Modeling Tool for Pedestrian Safety |
 | Toni Gantz, Enrique J. De La Garza, David R. Ragland, and Larry Cohen (November 18, 2003) Traffic Safety in Communities of Color |
 | Ted Brown, MD (September 14, 2003) Prehospital Care of Road Traffic Injuries in Chiang Mai, Thailand APPENDIX |
 | Larry Cohen, Manal Aboelata, Toni Gantz, and Jennifer Van Wert (September 1, 2003) Collaboration Math: Enhancing the Effectiveness of Multidisciplinary Collaboration |
 | Ted Brown, MD (September 1, 2003) Prehospital Care of Road Traffic Injuries in Chiang Mai, Thailand |
 | Lesliam Quiros and Barrett Shaver (August 6, 2003) Rural Road Links: A Review on Current Research Projects & Initiatives Aimed at Reducing Vehicle Crash Fatalities on Rural Roads |
 | David R. Ragland and Aleksandr A. Zabyshny (August 1, 2003) Intersection Decision Support Project: Taxonomy of Crossing-Path Crashes at Intersections Using GES 2000 Data |
 | Aleksandr A. Zabyshny and David R. Ragland (August 1, 2003) False Alarms and Human-Machine Warning Systems |
 | David R. Ragland, Frank Markowitz, and Kara E. MacLeod (May 1, 2003) An Intensive Pedestrian Safety Engineering Study Using Computerized Crash Analysis |
PAPERS FROM 2002
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 | Jill Cooper, David R. Ragland, Kara E. MacLeod, and Wendy Jameson (September 24, 2002) Pre-Intervention Assessment: UC Davis Medical Center and California Health Care Safety Net Institute Child Passenger Safety Initiative |
 | Farnaz Vahidnia PhD and Julia Walsh PhD (March 1, 2002) Cost-Effectiveness of Traffic Safety Interventions in the United States |
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