The one minute abstract:

Worst Area: Congress St & 6th Ave

In 5 years, there have been 40 crashes within 2/10ths of a mile of Congress St & 6th Ave. Note: this is an area with lots of bicycle traffic. show

Worst Intersection: Grant Rd & Alvernon Way

There have been 13 collisions specifically at Grant Rd & Alvernon Way. show intersection

✔ 22.9% of crashes — right-turning vehicle/wrongway cyclist

Tucson's most common bicycle crash involves a cyclist riding the wrong way on the sidewalk (or bike lane) and a motorist turning right from a side street or a driveway. The motorist's attention is entirely on the approaching traffic to the left and is not expecting the cyclist to the right.
show this collision type

✔ 16.9% of crashes — crosswalk/intersection

The second most common collision type is a T-bone at an intersection. Fault is not clear cut and depends entirely on the circumstances. Either the cyclist or the motorist (sometimes both!) has run a stop sign; ignored a traffic light; or failed to yield the right-of-way. Further investigations into crash reports will help determine the percentages.
show intersection crashes

✔ 13.4% of crashes — left hook
✔ 12.6% of crashes — right hook

Left and right hooks are the third and fourth most common crashes in Tucson. These are usually caused by motorist inattention rather than cyclist behaviors.
show left hooks
show right hooks

Overall Collisions:

Relative crashes by month:

In Tucson, there are more crashes in the spring and fall than in summer or winter.
Relative crashes by day:
There are signficantly fewer crashes on weekends than on weekdays.
Relative crashes by hour:
The evening rush hours are the worst time for crashes.
Bicycle Crash Data
Crash Statistics
Cyclist Statistics
Motorist Statistics