Severity of motorcycle crashes in Calgary

► In this study, we examined factors affecting the severity of motorcycle crashes on local roads. ► We found crash severity to increase in urban neighborhoods with loops and lollipops streets. ► It increased in right-angle, left-turn-across-path, truck, alcohol use or speeding crashes. ► It decrease in parking lots or winter, or involved a van, male rider or rider following too closely. ► The results were robust respect to different modeling methodologies.