Maps for Charity Bike Rides

Charity rides and club centuries usually offer three or four route distances from the same start line. Importing the GPX tracks into one map with 3D terrain, rest stop cutoffs and parking zones serves riders who do not own a bike computer as well as the families waiting for them.

A community fundraising ride has a wider mix of participants than a licensed road race. At the front of the 100-mile century group are club cyclists with GPS head units mounted to their handlebars. Twenty minutes behind them are weekend riders on hybrids doing the 25-mile loop, families on the 10-mile greenway route, volunteer mechanics in support vans, and friends trying to meet their riders at the lunch stop without driving onto a closed road.

Posting four raw .gpx download links on the registration page helps the club cyclists and leaves everyone else guessing. Most casual participants and spectators just want to tap a link on their phone, see where the 25-mile and 62-mile loops split, check where the hills are, and find the rest stop restrooms.

Import the GPX tracks and style each distance

The GPX 1.1 specification defines separate structures for waypoints, routes and tracks so GPS devices and mapping tools can exchange course geometry cleanly. In practice, ride directors usually design or record each loop as a GPX or KML file.

In Tasmap, you can import GPX and KML files directly or paste the file content into the data importer. Import the 10-mile, 25-mile, 62-mile and 100-mile loops onto the same map and assign each distance its own line color, width and directional arrows to match the color of the route arrows painted on the pavement or printed on rider bib tags. Viewers on the public map can toggle individual route styles on or off, so a 25-mile rider can hide the century loop and inspect their exact turnarounds.

Let riders see the hills before they pick a distance

Many charity ride registration changes happen in the final week when a rider realizes the 62-mile route climbs a steep ridge after mile 40. A flat two-dimensional street map hides that climb completely.

Turning on 3D terrain and hillshading in Tasmap brings the valleys and ridges into view right under the route line. At the key climbs, add a marker with the length and grade of the hill, along with a note on where the route splits if a tired rider wants to take the shorter bail-out cutoff back to the finish festival.

Put rest stop hours and SAG cutoffs on the pins

A rest stop pin that only says Rest Stop 2 forces riders to look up the event handbook to see when the water tables close.

Every rest stop marker on the map should hold three facts in its note: the mile marker for each route that passes through it, the opening and closing cutoff times, and what is available on site, such as water, mechanical support, first aid or portable toilets. If the event uses a SAG wagon phone number or a bike shop sponsor at that stop, put it in the marker note so a rider with a flat tire does not have to dig through old registration emails at the side of the road.

Keep GPS expectations realistic on the day

Under open sky, GPS-enabled smartphones are typically accurate to within about 4.9 meters, according to GPS.gov, and tree cover or narrow valleys can widen that margin. When two loops split at an acute angle on a rural highway, a rider glancing at a phone screen still relies on clear physical signage and a recognizable landmark on the map.

At every route split where the 30-mile riders turn left and the 62-mile riders go straight, drop a split marker that names the road, the landmark at the corner, and the color of the physical turn signs on the ground.

One map for riders, volunteers and finish-line families

Around the start and finish area, draw polygons for rider parking, volunteer parking, the packet pickup tent and the post-ride meal area. Course marshals can open the same link on their phones at 6:30 a.m. to confirm their assigned intersection, and families can use the map search bar to find a spectator-friendly café or park along the route.

For the packet pickup tent and the rest stop clipboards, export a high-resolution PDF or PNG from the Classic layout at up to 300 DPI so volunteers have a large, durable backup sheet even if rural cell reception drops.

References

GPX: the GPS Exchange Format, TopoGrafix. Overview of the standard XML format for exchanging waypoints, routes and tracks.
GPX 1.1 Schema Documentation, TopoGrafix. Definitions for waypoint, route and track elements in GPX files.
GPS Accuracy, GPS.gov. Expected horizontal accuracy of GPS-enabled smartphones under open sky and environmental factors that affect readings.