Because Every Bike Deserves to See the City...
Divvy bikes are constantly on the road, visiting Chicago like only few of us actually get to see Chicago. But do really all bikes get to see the city the same way? This visualization tries to provide an answer to this question. All 2,887 bikes of the Divvy fleet are analyzed here. The three bars for each bike show first the number of trips, then the total number of hours used, and then the percentage of stations visited. Overall, we can clearly see that bikes lower down the page (with higher IDs) are newer and they have therefore traveled a lot less. Moreover, we can see that few bikes actually get to visit more than 50-60% of all stations. These bar charts are actually quite telling, and I made this page that only shows them in a smaller version so we can nearly fit all bikes in one single page. Additional self-explanatory information is also shown next to the bar charts. From these bar charts, can you spot Divvy Red or Holidivvy? Could Divvy Red be the bike with the most number of trips (Bike 383)? I actually do not know! And what about the most traveled bike, Bike 187, that visited 64% of stations?
To specifically look at which stations a bike has visited, click on the map link below the bike ID, where blue circles represent the stations visited and the red circles represent the stations that were not visited. An alternative and popular way to visualize origin-destination type data is to use chord diagrams that essentially connects two stations when a bike has been picked up at one and return at another. Here, I arranged chord diagrams in descending order, which means that the station at 12 o’clock was the most used, followed by the station at 1 o’clock and so on until we come back to 12 o' clock. I left out the station labels for clarity. For most bikes, you will notice that after about 6 o’ clock, we can barely observe stations, suggesting these stations were not heavily used. Looking at the chord diagrams of newer bikes that haven’t traveled much, however, will tell you the same thing but with fewer trips, making the diagram a little more “readable”. You will notice that even Bike 383 suffers from the same problem.
Overall, all Divvy bikes are far from having seen enough of Chicago, so we need to help them and make sure they visit each and every station… Everyone on your Divvy bike!