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STANFORD BIKE TRAFFIC PowerPoint Presentation
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STANFORD BIKE TRAFFIC

STANFORD BIKE TRAFFIC

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STANFORD BIKE TRAFFIC

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  1. STANFORD BIKE TRAFFIC Marisa Macias Janet Yu Xijia Chen

  2. Goals of the Project • Make observations on daily Stanford traffic at specific times • Express those observations using clear and creative visualizations • Arrive at a conclusion about the safety of chosen locations on the Stanford campus throughout the day

  3. Assumptions Made • Most traffic occurs during given times between classes • 10 min. before the hour (morning); 5-15 min. after the hour (afternoon) • Traffic consistent throughout week • Monday is the same as Tuesday, etc. • Skateboarders, Rollerbladers, and Cars ignored • Assumed that they constituted small percentage of traffic

  4. Problems Encountered • Limited time in which to accomplish project • Human error • Too many people • Bicyclists doing U-turns • Conditions not indicative of year-round traffic • Weather sunny for all four days

  5. Choice of Method • Criteria: • 3D --> 3D visualizations • Creative and clear • Possible Candidates: • Scatter plots, line plots, density plots, bar graphs, pie charts • Process of elimination

  6. The Chosen Methods • Parallel Plot Bar Graphs • Color clearly differentiates type of traffic • Independent variables: time vs. location • Dependent variables: number of bicyclists, pedestrians, and helmets • Density Plot • Clearly see totals at one time • Color also used to identify types of traffic

  7. Conclusions • Traffic generally decreases over time • Higher percentage of helmets later in the day • Tower and Gates had most traffic in one day • Tower at 1:05 - 1:15 PM -- most bicyclists and pedestrians w/ small percentage of helmets • Amount of helmets compared to bicyclists small