Get activity data data GPX files from Strava and display on a Map Tiler map.

Display the San Francisco Bay Trail and the Bay Area Ridge Trail with overlapping activities.

Use Map Tiler to create two maps: one with all activities, and another with the activities that overlap the Bay and Ridge trails. Use these maps to discover and plan new activities.

Install requirements: pip install -r requirements.txt

Use bboxfinder.com to find coordinates for a local bounding box. Set the bounding box coordinates in the environment: BOUNDING_BOX=-122.732314,36.916954,-120.977248,37.699028

Download activity data from Strava: Download or Delete Your Account then Download Request / Request Your Archive. Wait for an email, then download the archive and copy to strava.zip.

Get an API key from Map Tiler.

Create config.js and set Map Tiler API key and path for data files:

const MAP_TILER_API_KEY = "xxx";
const HOST = 'http://localhost:8000/output'

make download-strava prep-strava prep-ridge prep-shoreline overlap

Download GPX files (one per activity) from Strava and combine into a geojson file for display on a map.

Run make download-strava to unzip Strava GPX files in strava.zip to strava/activities.

Run make prep-strava to combine Strava GPX tracks within a bounding box to output/routes_gz.geojson.

The San Francisco Bay Trail interactive map data is already in GeoJSON format: https://mtc.ca.gov/modules/custom/mtcca_baytrail_map/sf_baytrail.geojson. Save to bay_trail/bay_trail.geojson.

Run make prep-shoreline to filter the data to a subset of fields for existing, in use trails and write to output/bay_trail.geojson.

The Bay Area Ridge Trail doesn't seem to have trail data in geodata format. The Bay Area Ridge Trail list on AllTrails includes 76 trails; click Download route on an individual trail page to download a GPX file for that segment. This downloads files with a .js (not .gpx) extension, although the data format is GPX.

Run make prep_ridge to combine GPX files in in ridge_trail/ to GeoJSON format in output/ridge_trail.geojson.

Run make overlap to combine trail data (output/bay_trail.geojson, output/ridge_trail.geojson) with Strava activity data (output/routes.geojson). Write overlapping routes to output/trail_routes.geojson.

make download-strava prep-strava overlap

Download Strava data to strava.zip, add new routes to output/routes.geojson, and re-create overlapping route / trail data.

Run make sync to sync data to S3 bucket in S3_BUCKET environment variable.

Start local server: python -m http.server

View activity heatmap: http://localhost:8000/index.html

View activity heatmap with Bay trails: http://localhost:8000/bay.html

• bboxfinder draw and get coordinates for a bounding box
• geopandas load GPX and GeoJSON files, apply geometric algorithms, and write GeoJSON
• gpxpy read activity metadata from GPX files
• MapTiler JavaScript SDK with excellent documentation and examples
• MapTiler Polyline helper example usage for drawing GeoJSON on a map
• about vector tiles