Spatial/Temporal Access Distribution and Its Causes

Seattle | New York (Computationally demanding) | Portland, OR

Hover over points in the city to see which other points can be reached from there within 30 minutes. The overlay color signifies how often this is possible during the full 24 hours of a typical weekday. Click once to lock the center under the cursor, click again anywhere to unlock. Blue lines signify which portions of transit routes are ridden to achieve this access. When available in agency data (e.g. Seattle bus routes), these will follow route's path. Otherwise they will connect adjacent stops with a straight line. Lines vary in thickness based on how many times of day they appear in a least-time path from the hovered point to another point. This visualizes the combined impact of frequency, speed, and proximity to stops.