ERP pricing now works without a key: the app bundles LTA’s published gantry geometry and current rate table. Your optional DataMall key only tests access to LTA’s live traffic-speed feed; route timings still come from the routing service.
Saved only in this browser. The key passes through this site only when contacting LTA and is never stored on the server.
How dataset matching works
Each route segment is checked against LTA’s ERP gantry lines. Where the GIS file lacks a usable gantry number, the app falls back to LTA’s official mapped gantry point. That avoids the old broad corridor circles and distinguishes carriageways much more closely.
At each crossing, the app advances the departure time by the route’s estimated progress, then looks up the exact five-minute or twenty-minute band in LTA’s passenger-car table. Sundays, official 2026–27 public holidays, and the 1pm major-holiday-eve cut-off are included.
The total remains an estimate because the routing line and arrival time can differ from your actual drive. Treat your vehicle’s OBU/IU and LTA’s own services as authoritative.