The Bicycle Network Analysis (BNA) helps communities measure the quality of their low-stress bike network. It assesses the degree to which people can comfortably bike to the places they want to go. Our goal with the tool is to lower the barrier to basic network analysis and encourage cities of all sizes to build connected, comfortable bike networks.
The BNA uses a modified “Level of Traffic Stress” approach, intended to correspond with the comfort level of a typical adult with an interest in riding a bike but who is concerned about interactions with vehicular traffic. It relies on data from two sources: The U.S. Census and OpenStreetMap. For more information about the methodology, click here.
Click here for PDF instructions on how to use the BNA, or watch a short video demonstration below.
Because the OpenStreetMap is free to access, there are many additional benefits to having updated maps. For example, third-party applications like Strava use OSM as do many other wayfinding and destination apps.
In 2017, we ran the BNA for 300 U.S. cities. They were selected for analysis based on the following criteria:
To make sure your city gets a BNA for 2018, encourage city staff to complete the PlacesForBikes City Snapshot.