Navigation is in developmentThis site is a concept preview
A clearer view of the road ahead

See the way through.

Directions are easy until the road isn't. TrunkFlow Navigation is being designed to move between a clear map and a street-level view, so the next turn makes sense before you reach it.

iPhone firstFree and open source planSafety by design
The feasibility prototype

Take a closer look.

Explore three synthetic routes. Move through each trip, switch views with one tap, and see what happens when imagery or road alignment becomes uncertain.

TRUNKFLOW / ROUTE SIMULATOR
A clearer decision at every turn
SYNTHETIC DEMO
01 / 06
✓
Map concept active

Tap Street concept to see an illustrated scene.

SCENE SOURCEIllustrated prototype
CAPTURE DATENo photo in demo
ATTRIBUTIONTrunkFlow concept art

This is an interaction study, not a working navigation service. Every view is drawn for the prototype; no Mapillary photo, live route, GPS position, or image-based road match is used.

Built around the moment of doubt

One trip.
Two ways to see it.

The map is the dependable foundation. Street mode should add context only when the scene, direction, and route agree. When they don't, guidance returns to the map.

01 / MAP

Find the route.

Search for a destination, compare routes, and follow large turn cues on a moving 3D map.

02 / STREET

See the next choice.

Tap into recorded street imagery where it is available and verified. A highlighted branch helps explain a complicated split.

03 / FALLBACK

Know when to trust the view.

If imagery ends or the branch cannot be matched with confidence, the highlight disappears and the map takes over.

From concept to road

A measured path
to launch.

New York City, Washington, D.C., and Jacksonville are the first proposed regions. Coverage and safety must be measured before any public driving release.

01

Prove the interaction

Prototype routes, transitions, imagery coverage, and safe fallback on a desktop.

IN PROGRESS
02

Build and test on iPhone

Connect routing and licensed imagery, then test GPS, voice, battery, and weak connectivity on physical devices.

PLANNED
03

Run a three-city pilot

Audit difficult junctions with local testers before an App Store release.

PLANNED