BikeMap DC is a community-curated cycling map for the Washington, D.C.
metro area. We collect the minimum data needed to operate the app. We
do not sell data, run ads, or share personal information with third
parties for marketing.
Account information
• Email address — used as your login identifier.
• Username — public, shown as the author of any contributions you submit.
• Password — stored only as a salted hash. We can't see it.
• Avatar — your choice from our preset DC-fauna avatars.
Location
• Your device location is read in the foreground only, with permission,
to center the map on you and to verify that new contributions are
submitted from within the DC metro area.
• Your live location is NOT stored on our servers. It is only used
in-memory while the app is running.
• Coordinates of points you submit (bike parking, theft reports, etc.)
are saved with the point so they can appear on the map.
Bikes you register
• Bike nickname, brand, color, wheel size, serial number, free-form
details, and an optional photo. Stored on your account and only
visible to you. It exists so you have your bike's info on hand if
it gets stolen.
Contributions
• Points of interest, theft reports, and accident reports you submit
are stored on our servers and shown publicly on the map once approved
by a moderator. The username you chose is attributed to your
contributions.
Push notification token
• If you grant notification permission, we store the device push token
tied to your user ID so we can send you alerts about nearby bike
thefts or, for moderators, new submissions awaiting review.
• To authenticate you and let you save bikes and submit contributions.
• To render the map (your location → recenter; submitted points →
public map).
• To notify users in the area when a theft is reported, and to notify
moderators about new submissions awaiting review.
• To prevent abuse — we may rate-limit accounts that submit clearly
invalid data.
We do NOT:
• Sell your data, ever.
• Run advertising or analytics SDKs that profile users.
• Share information with third parties for marketing.
• Your account, bikes, and photos: until you delete your account.
• Push tokens: until you sign out or the OS invalidates them.
• Contributions: indefinitely, but they are anonymized when you delete
your account (your username is replaced with a generic placeholder
so the public map stays useful to the community).
ACCOUNT & DATA DELETION
To delete your BikeMap DC account and personal data:
Option 1 — In the app
1. Open BikeMap DC
2. Tap your avatar (top right) → Edit Profile
3. Scroll to "Danger zone" → tap "Delete account"
4. Confirm — your account, bikes, and personal data are deleted immediately.
Option 2 — By email
If you cannot access the app, email bikemap.dc@gmail.com from the
address associated with your account, with the subject
"Account Deletion Request". We will delete your account within 7 days
and reply confirming the deletion.
WHAT GETS DELETED
• Your account (email, username, avatar, password hash)
• Your registered bikes (photos, brand, color, serial number)
• Your bike-theft and accident reports
WHAT IS KEPT (anonymously)
• Map points (POIs) you contributed that were approved are kept on the
map but stripped of your user ID, so the community-built map remains
intact. They are no longer linked to you.
Questions? bikemap.dc@gmail.com
We use Supabase (database, authentication, storage, serverless
functions) to operate the app. Supabase processes data on our behalf
under their privacy policy at https://supabase.com/privacy
Map base tiles are served by OpenStreetMap contributors under the
Open Database License (https://www.openstreetmap.org/copyright).
The bike infrastructure, points of interest, and crash information
shown in BikeMap DC come from the public datasets listed below. We
import these datasets periodically and attribute each row in our
database to its original source.
• DDOT — District Department of Transportation
Bike lanes (protected, conventional, contraflow, shared, etc.),
bike parking racks, and Capital Bikeshare station registry.
Source: https://opendata.dc.gov and DDOT GIS services at
https://maps2.dcgis.dc.gov/dcgis/rest/services/DDOT
• DCGIS — DC Geographic Information System
Metrorail stations, MARC and VRE commuter rail stops, signed bike
routes, and DC Parks & Recreation facilities.
Source: https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA
• Capital Bikeshare
Live station locations and capacity via the public GBFS feed at
https://gbfs.capitalbikeshare.com/gbfs/gbfs.json
(we use station information only — never real-time bike-availability
data).
• WMATA — Washington Metropolitan Area Transit Authority
Metrorail station roster cross-referenced from the official WMATA
system map at https://www.wmata.com/schedules/maps
• MPD — Metropolitan Police Department / Vision Zero
Cyclist injury and fatality crash data from the District's "Crashes
in DC" dataset for the past four years.
Source: https://opendata.dc.gov/datasets/DCGIS::crashes-in-dc
(layer published by DCGIS / MPD).
• OpenStreetMap (OSM)
Bike shops, fix-it stands, drinking-water stations, trail access
points, mountain-bike trails, and bus/bike shared lanes. Contributed
by thousands of volunteer mappers under the Open Database License
at https://www.openstreetmap.org/copyright
• goDCgo DC Bike Map
The legend categories and geographic coverage area in BikeMap DC
mirror the official goDCgo regional bike map at https://godcgo.com
Note: imported data is provided "as is" by each source and may contain
errors, gaps, or out-of-date information. If you find something wrong
on the map, email bikemap.dc@gmail.com with the point's reference code
(e.g. BP4231) and we'll fix it.
BikeMap DC is not directed at children under 13. We do not knowingly
collect personal data from children under 13. If you believe a child
has submitted personal data, email us and we will delete it promptly.
If we make material changes we will update the "Effective" date at the
top of this page and notify users via an in-app banner the next time
they open the app. Continued use after a change constitutes acceptance.
Questions, requests, or data-deletion appeals:
bikemap.dc@gmail.com