DDOT released a study report of bicycle and pedestrian crash locations which can give some idea about where facility or enforcement changes can have the largest benefit.
The information obtained from TARAS contained a ...total of 754 locations involving bicycles crashes. Since the total numbers were a broad amount, a narrowed list was selected based on the locations with a higher crash occurrence.
This report defines the top 5% high hazard locations using the available data from crash reports. DDOT established three categories of crash statistics to define high hazard intersections: the total number of crashes, the number of injury crashes, and the total number of injuries. Intersections are ranked from most to least severe in all three categories.
As verbalized in the Annual Report, “Intersections featuring twelve or more crashes per year, four or more injury crashes per year, and five or more injuries per year are the established thresholds for identifying hazardous intersections”.
In addition the study relied on conclusions from the 2012 report on cycletracks that I reported on at the time here.
The intersections with the most injuries (though none of the fatalities) were:
- 14th and U NW
- 14th and Columbia NW
- 14th and V NW
- 16th and New Hampshire NW
The report had information on these and 10 other intersections. Of those 14, 6 are in some level of review or redesign. with 14th and U currently in construction. Three of these were included because they had only one injury crash but it was a fatality. None of these are highly used by cyclists as near as I can tell.
They show an analysis of "causes" of the injury crashes and by my count, drivers were at fault in 14, cyclists in 7* and pedestrians in 2, with the others unknown. Not that you can draw many conclusions from that, but there you go. Report is below the jump