The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles
We conducted individual and ecologic analyses of prospectively collected data from 839 injured bicyclists who collided with motorized vehicles and presented to Bellevue Hospital, an urban Level-1 trauma center in New York City, from December 2008 to August 2014. Variables included demographics, scen...
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| Format: | Article |
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MDPI AG
2016-12-01
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| Series: | Safety |
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| Online Access: | http://www.mdpi.com/2313-576X/2/4/26 |
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| author | Stephen P. Wall David C. Lee Spiros G. Frangos Monica Sethi Jessica H. Heyer Patricia Ayoung-Chee Charles J. DiMaggio |
| author_facet | Stephen P. Wall David C. Lee Spiros G. Frangos Monica Sethi Jessica H. Heyer Patricia Ayoung-Chee Charles J. DiMaggio |
| author_sort | Stephen P. Wall |
| collection | DOAJ |
| description | We conducted individual and ecologic analyses of prospectively collected data from 839 injured bicyclists who collided with motorized vehicles and presented to Bellevue Hospital, an urban Level-1 trauma center in New York City, from December 2008 to August 2014. Variables included demographics, scene information, rider behaviors, bicycle route availability, and whether the collision occurred before the road segment was converted to a bicycle route. We used negative binomial modeling to assess the risk of injury occurrence following bicycle path or lane implementation. We dichotomized U.S. National Trauma Data Bank Injury Severity Scores (ISS) into none/mild (0–8) versus moderate, severe, or critical (>8) and used adjusted multivariable logistic regression to model the association of ISS with collision proximity to sharrows (i.e., bicycle lanes designated for sharing with cars), painted bicycle lanes, or physically protected paths. Negative binomial modeling of monthly counts, while adjusting for pedestrian activity, revealed that physically protected paths were associated with 23% fewer injuries. Painted bicycle lanes reduced injury risk by nearly 90% (IDR 0.09, 95% CI 0.02–0.33). Holding all else equal, compared to no bicycle route, a bicycle injury nearby sharrows was nearly twice as likely to be moderate, severe, or critical (adjusted odds ratio 1.94; 95% confidence interval (CI) 0.91–4.15). Painted bicycle lanes and physically protected paths were 1.52 (95% CI 0.85–2.71) and 1.66 (95% CI 0.85–3.22) times as likely to be associated with more than mild injury respectively. |
| first_indexed | 2024-04-13T05:05:59Z |
| format | Article |
| id | doaj.art-02470bd575914ae1929e94fa06517062 |
| institution | Directory Open Access Journal |
| issn | 2313-576X |
| language | English |
| last_indexed | 2024-04-13T05:05:59Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Safety |
| spelling | doaj.art-02470bd575914ae1929e94fa065170622022-12-22T03:01:11ZengMDPI AGSafety2313-576X2016-12-01242610.3390/safety2040026safety2040026The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor VehiclesStephen P. Wall0David C. Lee1Spiros G. Frangos2Monica Sethi3Jessica H. Heyer4Patricia Ayoung-Chee5Charles J. DiMaggio6Ronald O. Perelman Department of Emergency Medicine, New York University School of Medicine, New York, NY 10016, USARonald O. Perelman Department of Emergency Medicine, New York University School of Medicine, New York, NY 10016, USADivision of Trauma and Surgical Critical Care, Department of Surgery, Bellevue Hospital Center, New York University School of Medicine, New York, NY 10016, USADivision of Trauma and Surgical Critical Care, Department of Surgery, Bellevue Hospital Center, New York University School of Medicine, New York, NY 10016, USADivision of Trauma and Surgical Critical Care, Department of Surgery, Bellevue Hospital Center, New York University School of Medicine, New York, NY 10016, USADivision of Trauma and Surgical Critical Care, Department of Surgery, Bellevue Hospital Center, New York University School of Medicine, New York, NY 10016, USADepartment of Population Health, New York University School of Medicine, New York, NY 10016, USAWe conducted individual and ecologic analyses of prospectively collected data from 839 injured bicyclists who collided with motorized vehicles and presented to Bellevue Hospital, an urban Level-1 trauma center in New York City, from December 2008 to August 2014. Variables included demographics, scene information, rider behaviors, bicycle route availability, and whether the collision occurred before the road segment was converted to a bicycle route. We used negative binomial modeling to assess the risk of injury occurrence following bicycle path or lane implementation. We dichotomized U.S. National Trauma Data Bank Injury Severity Scores (ISS) into none/mild (0–8) versus moderate, severe, or critical (>8) and used adjusted multivariable logistic regression to model the association of ISS with collision proximity to sharrows (i.e., bicycle lanes designated for sharing with cars), painted bicycle lanes, or physically protected paths. Negative binomial modeling of monthly counts, while adjusting for pedestrian activity, revealed that physically protected paths were associated with 23% fewer injuries. Painted bicycle lanes reduced injury risk by nearly 90% (IDR 0.09, 95% CI 0.02–0.33). Holding all else equal, compared to no bicycle route, a bicycle injury nearby sharrows was nearly twice as likely to be moderate, severe, or critical (adjusted odds ratio 1.94; 95% confidence interval (CI) 0.91–4.15). Painted bicycle lanes and physically protected paths were 1.52 (95% CI 0.85–2.71) and 1.66 (95% CI 0.85–3.22) times as likely to be associated with more than mild injury respectively.http://www.mdpi.com/2313-576X/2/4/26bicyclistsbicycle lanesgeographic analysisinjury severitytrauma |
| spellingShingle | Stephen P. Wall David C. Lee Spiros G. Frangos Monica Sethi Jessica H. Heyer Patricia Ayoung-Chee Charles J. DiMaggio The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles Safety bicyclists bicycle lanes geographic analysis injury severity trauma |
| title | The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles |
| title_full | The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles |
| title_fullStr | The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles |
| title_full_unstemmed | The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles |
| title_short | The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles |
| title_sort | effect of sharrows painted bicycle lanes and physically protected paths on the severity of bicycle injuries caused by motor vehicles |
| topic | bicyclists bicycle lanes geographic analysis injury severity trauma |
| url | http://www.mdpi.com/2313-576X/2/4/26 |
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