What Chainage does

Who it's for

Chainage is the distance along a road from the start of its road section, in kilometres. TMR, traffic management designers, traffic controllers, road crews, contractors and inspectors use it to say exactly where something is on a state-controlled road. Chainage (the app) is built for those people: anyone who writes a TGS or TMP, sets up on site, or records what they find on the road.

What you can do without an account

• Find your chainage with GPS and follow it live as you move.
• Tap or click the map anywhere to get the chainage there.
• Search by road name, section number, coordinates or a Google Maps link.
• Read the road section, carriageway, traffic volume, heavy vehicles and speed limit on the chainage card.
• Check the spot in Street View.
• Share a location with a link or QR code.
• Take chainage-stamped photos and save them to your phone.

What a free account adds

With a free Starter account you can save chainage points, dropped pins and ranges into projects, organise them in phases and layers, add photos, notes, links and files, and share your work with read-only links. Starter includes up to 10 projects and 50 MB of storage.

Paid plans add unlimited projects, more storage and company workspaces for teams. See Plans and what they include.

Which roads are covered

• Every Queensland state-controlled road: the highways, motorways and main roads managed by TMR. They glow orange on the map.
• Council roads in Sunshine Coast and City of Moreton Bay: drawn in violet when you zoom in, with the council's own chainage (not a TMR chainage). See Council roads.

Other council roads don't have a chainage in Chainage. Tapping one shows the nearest state-controlled road instead.

The road and chainage data comes from TMR open data. Chainage checks for new releases every day and updates automatically. See Where the data comes from.