Publications

Title Author Year Publication type
Pre-Intervention Assessment: UC Davis Medical Center and California Health Care Safety Net Institute Child Passenger Safety Initiative Cooper, Jill F.; Ragland, David R.; MacLeod, Kara E.; Jameson, Wendy 2002 Technical Report
Introducing an Intelligent Intersection Grembek, Offer; Kurzhanskiy, Alex A.; Medury, Aditya; Varaiya, Pravin; Yu, Mengqiao 2018 Technical Report
Applying Safety Treatments To Rail-Highway At-Grade Crossings Cooper, Douglas L.; Ragland, David R. 2012 Technical Report
Error Consideration for Geocoding Police Reported Collision Data in California Bigham, John M.; Oum, Sang Hyouk 2014 Technical Report
California Intersection Decision Support: A Systems Approach to Achieve Nationally Interoperable Solutions Chan, Ching-Yao; Cody, Delphine; Cohn, Theodore; Dickey, Susan; Greenhouse, Dan; Mak, Tony; Marco, David; Nguyen, Khoi; Misener, James A.; Nowakowski, Christopher; Ossenbrugen, Paul ; Ragland, David R.; Shladover, Steven E.; Tan, Swe-kuang; Vanderwerf, Joel; Wang, Xiqin; Zabyshny, Aleksandr; Zennaro, Marco 2005 Technical Report
Seamless Travel: Measuring Bicycle and Pedestrian Activity in San Diego County and its Relationship to Land Use, Transportation, Safety, and Facility Type Jones, Michael G.; Ryan, Sherry; Donlon, Jennifer; Ledbetter, Lauren; Ragland, David R.; Arnold, Lindsay S. 2010 Technical Report
The Association Between Health Problems and Driver Status Among Older Adults MacLeod, Kara E.; Geyer, Judy A.; Satariano, William A.; Ragland, David R. 2004 Technical Report
Community Pedestrian and Bicycle Safety Training Program Evaluation Report Doggett, Sarah; Beck, Kate M.; Ana Lopez; Cooper, Jill F. 2019 Technical Report
Airports and Bicycles: what are the obstacles and incentives for operators to improve bicycle access? Orrick, Phyllis; Frick, Karen Trapenberg 2013 Technical Report
The Continuous Risk Profile Approach for the Identification of High Collision Concentration Locations on Congested Highways Chung, Koohong; Ragland, David R.; Madanat, Samer; Oh, Soon Mi 2009 Technical Report
Cost-Effectiveness of Traffic Safety Interventions in the United States Vahidnia, Farnaz; Walsh, Julia 2002 Technical Report
We All Want the Same Thing Results from a Roadway Design Survey of Pedestrians, Drivers, Bicyclists, and Transit Users in the Bay Area Sanders, Rebecca L.; Cooper, Jill F. 2012 Technical Report
Methods for Identifying High Collision Concentration Locations for Potential Safety Improvements Geyer, Judy; Lankina, Elena; Chan, Ching-Yao; Ragland, David R.; Pham, Trinh; Sharafsaleh, Mohammad A. 2008 Technical Report
Evaluation of Traffic and Environment Effects on Skid Resistance and Safety Performance of Rubberized Open-grade Asphalt Concrete Oh, Soon Mi; Ragland, David R.; Chan, Ching-Yao 2010 Technical Report
Bicycle Helmet Use: Workbook and Guide for Evaluating Community-Based Programs Geyer, Judy; Cooper, Jill F.; Ragland, David R. 2003 Technical Report
Oakland Chinatown Pedestrian Scramble: An Evaluation Bechtel, Allyson K.; MacLeod, Kara E.; Ragland, David R. 2003 Technical Report
Building a Highway Linear Referencing System from Preexisting Reference Marker Measurements for Transportation Data Management Bigham, John M.; Kang, Sanghyeok 2013 Technical Report
Estimating Pedestrian Accident Exposure: Protocol Report Greene-Roesel, Ryan; Diogenes, Mara Chagas; Ragland, David R. 2007 Technical Report
Strategies for Reducing Pedestrian and Bicyclist Injury at the Corridor Level Grembek, Offer; Zhang, Yuanyuan; Yavari, Afsaneh; Yang, Zhao; Ragland, David R. 2013 Technical Report
Experimental Evaluation of the Continuous Risk Profile (CRP) Approach to the Current Caltrans Methodology for High Collision Concentration Location Identification Grembek, Offer; Kim, Kwangho; Kwon, Oh Hoon; Lee, Jinwoo; Liu, Haotian; Park, Min Ju; Washington, Simon; Ragland, David R.; Madanat, Samer M. 2012 Technical Report
Safety Evaluation of High-Occupancy Vehicle (HOV) Facilities in California Ragland, David R.; Oh, Soonmi; Chan, Ching-Yao 2008 Technical Report
Pedestrian and Bicycle Safety Evaluation for the City of Emeryville at Four Intersections Johnson, Emily S.; Ragland, David R.; Cooper, Jill F.; O'Connor, Terri 2005 Technical Report
A Review of ITS-Based Pedestrian Injury Countermeasures Bechtel, Allyson K.; Geyer, Judy A.; Ragland, David R. 2003 Technical Report
California Traffic Safety Survey 2021 Ewald, Katrin; Wasserman, Lisa 2021 Technical Report
Safety and Other Impacts of Vehicle Impound Enforcement Cooper, Douglas L.; Chira-Chavala, T.; Gillen, David 2000 Technical Report
California Traffic Safety Survey 2024 Ewald, Katrin; Wasserman, Lisa 2024 Technical Report
Evaluation of Wet Weather Accident Causation Criteria Oh, Soonmi; Ragland, David R.; Chan, Ching-Yao 2008 Technical Report
Develop a Plan to Collect Pedestrian Infrastructure and Volume Data for Future Incorporation into Caltrans Accident Surveillance and Analysis System Database Zhang, Yuanyuan; Proulx, Frank R.; Ragland, David R.; Schneider, Robert J.; Grembek, Offer 2014 Technical Report
Promoting Research Results and New Technologies: Making the Case for Accelerated Deployment Andrews, Stephen; Madanat, Samer; Ragland, David R.; West, Thomas 2011 Technical Report
Collaboration Math: Enhancing the Effectiveness of Multidisciplinary Collaboration Cohen, Larry; Aboelata, Mana; Gantz, Toni; Van Wert, Jennifer 2003 Technical Report
California Traffic Safety Survey 2023 Ewald, Katrin; Wasserman, Lisa 2023 Technical Report
Automated Assessment of Safety-Critical Dynamics in Multi-modal Transportation Systems Medury, Aditya; Yu, Mengqiao; Bourdais, Cedric; Grembek, Offer 2016 Technical Report
Observational Study of Cell Phone and Texting Use Among California Drivers 2015 and Comparison to 2011 through 2014 Data Cooper, Jill F.; Ragland, David R.; Ewald, Katrin; Wasserman, Lisa; Murphy, Christopher J. 2015 Technical Report
Performance Measures for Complete, Green Streets: Initial Findings for Pedestrian Safety along a California Corridor Sanders, Rebecca L.; Macdonald, Elizabeth; Anderson, Alia; Ragland, David R.; Cooper, Jill F. 2011 Technical Report
Pedestrian and Bicycle Safety Evaluation in a SMART Corridor Ragland, David R.; O’Connor, Terri 2007 Technical Report
Safe Routes to Transit Program Evaluation Final Report Sanders, Rebecca L.; Weinzimmer, David; Dittrich, Heidi; Cooper, Jill F. 2014 Technical Report
Traffic Safety in Communities of Color Gantz, Toni; De La Garza, Enrique J.; Ragland, David R.; Cohen, Larry 2003 Technical Report
2022 Statewide Traffic Safety Survey Summary Cooper, Jill F. 2022 Technical Report
Observational Study of Cell Phone and Texting Use Among California Drivers 2012 and Comparison to 2011 Data Cooper, Jill F.; Ragland, David R.; Ewald, Katrin; Wasserman, Lisa; Murphy, Christopher J. 2013 Technical Report
Red-Light-Running Collision Avoidance Grembek, Offer; Zhou, Kun; Zhang, Wei-Bin 2009 Technical Report
Pilot Models for Estimating Bicycle Intersection Volumes Griswold, Julia B.; Medury, Aditya; Schneider, Robert J. 2011 Technical Report
Evaluation of Traffic and Environment Effects on Skid Resistance in California Oh, Soon Mi; Madanat, S M; Ragland, David R.; Chan, Ching-Yao 2010 Conference Paper
Evaluation of Countermeasures: A Study on the Effect of Impactable Yield Signs Installed at Intersections in San Francisco Banerjee, Ipsita; Ragland, David R. 2007 Conference Paper
A Pilot Model for Estimating Pedestrian Intersection Crossing Volumes Schneider, Robert J.; Arnold, Lindsay S.; Ragland, David R. 2009 Conference Paper
Classification of Bicycle Traffic Patterns in Five North American Cities Miranda-Moreno, Luis; Nosal, Thomas; Schneider, Robert J.; Proulx, Frank R. 2013 Conference Paper
A Database for Active Transportation Infrastructure and Volume Proulx, Frank R.; Zhang, Yuanyuan; Grembek, Offer 2014 Conference Paper
Identification of High Collision Concentration Locations Under Wet Weather Conditions Hwang, Taesung; Chung, Koohong; Ragland, David R.; Chan, Chin-Yao 2008 Conference Paper
Exploring Factors Influencing Bicyclists’ Perception of Comfort on Bicycle Facilities Li, Zhibin; Wang, Wei; Zhang, Yuanyuan; Lu, Jie; Ragland, David R. 2011 Conference Paper
Influential Factors on Level of Injury in Pedestrian Crashes: Applications of Ordered Probit Model with Robust Standard Errors Jang, Kitae; Park, Shin Hyoung; Chung, Sungbong; Song, Ki Han 2010 Conference Paper
A 3D Computer Simulation Test of the Leibowitz Hypothesis Barton, Joseph E.; Cohn, Theodore E. 2007 Conference Paper