DATA STORY

Percentage of citations for the top five causes of collisions

Average percentage and number of traffic citations issued for the top five causes of collisions.

Controller's Office

Measure description

This measure looks at the percentage of all traffic tickets given for the five main reasons crashes happen in San Francisco. This is a key output indicator of the San Francisco Police Department (SFPD)’s progress in preventing collisions to further the City’s Vision Zero initiative.  The initiative is often referred to as "Focus on the Five".

Why the measure is important

In 2012, the San Francisco Municipal Transit Agency (SFMTA) analyzed police data about traffic collisions in San Francisco. The agency identified the five most common causes of collisions and injuries — speeding, violating pedestrian right-of-way in a crosswalk, running red lights, running stop signs, and failing to yield while turning.  

The SFPD commits to issuing at least half of traffic citations for these five violations.  

Enforcement is a key aspect of the Vision Zero Safe Systems approach. Tracking the Percentage and Number of Citations for the Top Five Causes of Collisions provides the public, elected officials, and City staff with a current snapshot of SFPD’s progress in this area.  

The interactive charts below present the Percentage and Number of Citations for the Top Five Causes of Collisions.  

Percentage and number of citations for the top five causes of collisions

The top chart’s legend is below:  

  • Y-axis: Percentage of total traffic citations that are for the top 5 causes of collisions 
  • X-axis: Calendar years  

The bottom chart’s legend is below:  

  • Y-axis: Number of citations by calendar month  
  • X-axis: Calendar years 

How performance is measured

The percentage of “Focus on the Five” citations is calculated using the following methodology:  

  • Monthly total “Focus on the Five” citations divided by the total citations issued.  

The number of “Focus on the Five” citations is calculated using the following methodology:  

  • Monthly total “Focus on the Five” citations. 

Police officers issue both virtual and handwritten citations. The San Francisco Police Department reports these results online every month. Download the latest traffic violation reports from SFPD's website. The Controller's Office compiles this data to create the charts on this page. 

The number displayed on the Transit and Street Safety scorecard page represents a fiscal year average of the values in the first chart above. 

Data notes and sources

Data for this measure comes from SFPD’s website. This measure is reported with a two-month lag. For example, May’s data will be available at the end of July.  

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