NYC traffic collisions from 2012 to 2018
Every year more than 200,000 vehicle collisions occur in the five boroughs of New York City. The NYPD began publishing a data set of every recorded vehicle collsion in the city in July of 2011. The aim of this project is to analyze the Traffic Collision dataset and present visually identifiable patterns that would enable city planners, traffic management and commuters to make informed choices and reduce risk of collisions.
The visualization below processes 1.23 million data points for traffic collisions in the city of New York everyday from August 2012 to March 2018.
Hover over the graph to get the number of accidents that happened on a particular day
What are NY boroughs?
New York City encompasses five different county-level administrative divisions called boroughs: Manhattan, the Bronx, Queens, Brooklyn, and Staten Island. All boroughs are part of New York City, and each of the boroughs is coextensive with a respective county, the primary administrative subdivision within New York State. The Bronx and Queens are concurrent with the counties of the same name, while Manhattan, Brooklyn, and Staten Island correspond to New York, Kings, and Richmond Counties respectively.
Accidents at a glance
In the following graph one can see the number of accidents in NYC over the years and their breakdown based on boroughs. The lower portion of the graph shows the number of injuries in each year.
Click on the buttons under each year to filter and see the results for that year.
Well, are you overwhelmed by the sheer volume? Don’t be!
We have broken down them into details for you down below. In the visual we have tried to capture the major contributing factors of accidents and filter them based on the commuters injured vs killed.
The drop-down on the right can be used to interact with the viz for various types of commuters.
As we can see above the number of injured and killed are far less compared to the number of accidents. It is a relief to see that not all accidents result in injuries or deaths. But still the number is high, how can we help you travel safe?
This shows all the intersections which have recorded more than 200 incidents.
Click on the map of the boroughs to interactively see the various streets in each borough. Staten Island will not show any as there are no intersections with more than 200 incidents.
Well you may be wondering what else could be the cause of such high number of incidents.
Some factors are listed below:
Select the radio button on the right to filter the vehicle group
- Cyclists - Bicycles, motorcycles and scooters are often seen during favourable weather conditions like spring, summer, fall. During the months of summer we see more 2-wheelers on the road and hence the number of recorded accidents with 2-wheelers are more.
- Passenger Vehicles - Although people use their cars/SUVs/vans throughout the year we see more accidents in spring and summer. This could be related to more people travelling during school breaks etc.
- Taxis - People use taxis during harsh weather conditions- Winter. The number of accidents are more for the same.
- Buses - Buses don’t show any trend as such since they are operational throughout the year. But we see that during fall and winter there is a slight increase in the number of accidents.
So, no matter how you commute, drive safe during the winters!
Below we see that peak hours for alcohol related accidents are between 3am to 5am generally.
Click on the borough outlines to filter based on boroughs.
Our advice: Use public transport to the extent possible and never drive under influence of alcohol.
Below is another analysis of the accidents but now they are shown in a granularity of weekdays and weekends.
Weekends are good to have fun but be safe during the wee hours of 12 am to 4 am
In the following graph we can see the number of accidents over the years on different hours of the day. As we see, it ranges mostly during the work hours of a day 8 am to 6pm. The peak is seen from 4pm to 5pm.
From the above chart, we can infer that the number of traffic incidents increase whenever there is climate change like onset of winter or onset of summer. On onset of winter, the sudden rain and snow impact the drivers. In summer, more people are outdoors including tourists. The incidents decline in extreme temperatures as expected.
The Top 50 Fatal Locations
So let's look at a bird's eye view of the New York City to identify which areas have fatal accidents. The chart below depicts the accident prone areas in New York City. The chart illustrates that there are multiple areas where there have been fatal accidents over the years. While traveling these areas one has to be careful.
Use the year drop down to overlay different accident spots over the years. To understand the interaction for this chart click the "Usage" button.
If you are traveling through a particular road knowing the upcoming accident prone intersections would help. The street view map below provides the information. The user can move around the chart to identify the intersection and route of their travel.
The intention of this visualization is to give the user a high level picture of the dangerous spots in New York. The map is initialized with the data of 2012. As the user goes through the years, the additional data gets appended to the visualization. This provides a complete picture of the dangerous spots in New York, the area where there are multiple accidents over the years.
1. The map can be zoomed in and out by double clicking or mouse wheel.
2. The map can be zoomed in and out by the dedicated + and - button on the screen
3. Hovering over the accident image, gives details about the spot of accident via tooltip
4. Hovering over the burrough gives details about the burrough via tooltip
5. The map can be moved around.