The Trends

We analyzed a subset of the emergency call logs that the San Francisco Police Department (SFPD) received in order to find any interesting trends that may be important.

First, let's look into the types of the emergencies that reported. As we can see, the vast majority of calls involve Medical Emergencies, with Alarms and Fires coming close in behind.

Now, let's look into how long it took for emergency services to respond to the calls. As we can see, the vast majority of calls have a very good response time (under 7 minutes!), and with only a fraction of the calls taking more than 20 minutes.

And now finally, let's look into how the calls were actually resolved. As we can see, roughly half of the calls required some form of transportation after arriving on scene (Code 2 and 3). And of the remaining half, around 50% consisted of fire calls and the other 50% were considered cases where the caller could either not be found, refused transport, or had no merit.

Location and Time

Now, let's look at what the most likely emergency request is given a specific location (zip) and time of day. For the most part, medical emergencies remain the most likely incident type for the majority of regions and times, and this frequency only increases the earlier in the day it it.

Dispatch Time

Finally, let's take a look at the average response time for each area. The red regions on this heatmap indicate very slow response times, while the blue regions indicate very quick responses. It is evident that the majority of delays occur in the Mid-Market region. All surrounding areas enjoy, for the most part, relatively quick emergency response times. The best way to decrease the delays in this "hot zone" would probably be to increase the number of patrolling transport vehicles in the area. However, since traffic in this area is also fairly congested, it may be necessary to build an auxiliary facility to support this area in the future.