vBikes

Visualizing Los Angeles Bike share data from July 2016 to March 2017

See live here: edwinyu.me/vBikes/

Features

1. Station Popularity

   • Heatmap displaying the popularity of each starting and ending bike station in LA

2. Monthly Trends

   • Bar charts analyzing how ridership changes throughout the year.
   • Click on buttons to see relationship between the types of passes used, average trip duration, and number of trips per month

3. Passholder Breakdown

   • Displays the number of riders who include bike sharing as a regular part of their commute
     • Assumed that all pass types, excluding "Walk-up," signify regular riders
   • Donut chart showing the ratio of pass holder types
   • Hover over each section of the chart to see the exact count and the breakdown of each Trip Route Category-Passholder type combination

4. Average Distance

   • Calculating the average distance of one way trips
     • Used the Haversine Formula on the latitude and longitudes of starting and ending stations
   • Calculating the average distance of round trips
     • Assumed the the average biker travels at 6 miles per hour
     • Multiplied my assumed average speed by the total duration of all one way trips
   • Calculated the combined average by taking a weighted average of the two

5. Net Change in Bikes per Station

   • Multi-Line chart displaying the net change of bike trips per station throughout the course of a day
   • Found the number of bikes leaving and arriving at a specific station and graphed the difference
   • Can change the currently graphed station by using the drop-down menu

Built with

• Javascript, HTML, and CSS for Frontend
• D3.js for the Bar Charts, Donut Chart, and the Multi-Line Chart
• Google Maps Visualization API for the Heatmap
• Papa Parse to parse the csv files