Code For Princeton created a website called bikeview.org to help the Princeton Bicycle Advisory Committee with bike safety and infrastructure planning. Bikeview.org visualizes bike crash data on interactive maps to help identify unsafe routes and prioritize road improvements. It also includes tools for reporting non-crash incidents and finding low-traffic bike routes. The project uses open source technologies like R and CartoDB to analyze and map Mercer County bike crash data provided by the municipality. Bikeview.org makes this data freely available to the public online and through a mobile app in order to raise awareness and spark discussion around bike safety issues.

1. Code For Princeton

2. Team’s solution: bikeview.org

3. Early Impact: Princeton Bicycle Advisory Committee
Princeton Bicycle Master Plan
Low-traffic-stress routes highlighted
Bike View bike crash map

4. Municipal need statement
Princeton is in the process of finalizing a Bicycle Master Plan
which involves making data-driven decisions
We have created visualizations of crash information to help:
• Plan bicycle infrastructure
• Set priorities for policing and road improvement
• Raise awareness of bike safety issues by making crash data
freely available to the public.
• Reporting of non-crash bike incidents
PBAC

5. Data -> Processing -> Application -> Presentation
Mercer County
bike crash data
Interactive
Crash Analysis
Map
Realtime
Weather info
Road conditions
Safe Route Map
Incident
Reporting Tool
Mobile
App
bikeview.org
-Anonymize
-Add GPS
coordinates
-Build Map

6. Technical Toolbox
● Data Analysis and Visualization - R, Shiny App, Plotly & D3
● Website - HTML5, CSS, PHP and MySQL
● Mobile app - Android SDK
● Mapping - CartoDB, ArcGIS, Google Geocoding API

7. Bike View User Interface -
Website and Mobile Application
• Crash Statistics turned into interactive maps and
visualizations
• Collection of bicycle safety tips and resources
• Bike View makes it easy to find routes that are safe, and
avoid ones that aren’t

8. Municipal impact of Bike View
• Princeton Committees use bikeview.org to inform
decisions on the Princeton Bicycle Master Plan
• Captures information from users on road safety matters;
feeds to Access Princeton - SeeClickFix
• Helps prioritize public road improvements to address the
most frequent crash locations
• Sparks dialog to address road safety for all

9. Originality
• Unique Data- Bike View highlights hard-to-get bicycle-
related crash data whereas most crash maps are car-
centric
• Interactive - User can filter/map the data by variables
such as crash severity and cell phone or alcohol use
• Safety Focused - Bike View’s route planning mobile app
optimizes for safety rather than travel time or total
distance
• Customized Dashboard - Built analysis dashboard based
on car, bike & speed sign data.

10. Scalable
• Transportation modes:
Bike
Car
Pedestrian
• Geography:
Municipalities
Counties
State

11. Usability
• Princeton Bicycle Advisory Committee used Bike View
in its review of the Bicycle Master Plan on 3/23/17
• Turnkey, intuitive user interface for Princeton;
video tutorials on website
• Other municipalities need to provide data, do data
preparation and upload

12. Hyperlinks
• bikeview.org
• Shiny App Dashboard
• Multimodal Interactive Crash Map (ArcGIS)
• Bikes-only Crash Map
• Cars-only Crash Map
• Mobile App
• Map demo/tutorial video
• Team Work (Supporting Docs, Lauren have access)