OnStation vs. Esri Field Maps
Field Maps is built for GIS.
OnStation is built for the road.
If you manage utility assets, parks inventories, or building inspections, Esri Field Maps is a serious platform. If you build roads, you need a tool that knows what station 234+10 is.
"You use it once and you realize the value of it. Hands down, digital stationing is always going to point you in the right direction."
Chris Lundberg, Senior CEI Inspector, RS&H
Different Tools, Different Jobs
Both are field apps.
They were built for different work.
Esri Field Maps is a general purpose GIS data collection app. OnStation is a stationing platform built specifically for heavy and highway road construction. The honest comparison is not feature by feature. It is what each tool was designed to do.
Field Maps was built for
- Asset inventories (signs, valves, hydrants, parks features)
- Utility network management and tracing
- Building and indoor inspections (floor aware maps)
- Configurable forms, tasks, and workflows for any field operation
- Enterprise GIS data collection at lat/long coordinates
OnStation was built for
- Live station and offset on every phone
- Station anchored photo and flag documentation
- Road alignments, tick marks, and labels rendered as one layer
- Spiral curves and station equations carried directly from your CAD file
- A defensible, date stamped, location tagged evidentiary record
Where the Category Gap Shows Up
What Field Maps can't do for road construction.
These are not nitpicks. They are why teams that already own Esri licenses still buy OnStation for their road projects.
Live stationing
Field Maps tells you where you are in latitude and longitude. OnStation tells you that you are at 234+10, 21 feet right of centerline. If your crew, your inspector, or your DOT thinks in stations, Field Maps does not speak the language.
Spiral curves
Engineering spiral curves are mathematical transitions, not point to point lines. OnStation reads the curve straight from your CAD file. Field Maps draws geometries between vertices, which means your alignment becomes a series of straight segments approximating the real curve.
Station equations
When your plans carry an equation (POT 50+00 = back 49+50), the alignment has a discontinuity Field Maps cannot represent. Its feature layer model is built on coordinates, not on stationing. OnStation reads the equation from your design files and carries it through every readout.
Alignment, labels, and tick marks as one layer
In Field Maps, every tick mark would be a feature you build, configure, symbolize, and maintain. Every label is another feature. OnStation generates your alignment with all labels and tick marks as a single layer, automatically, from the CAD file you already have.
Setup Reality
Ten minutes to get stationed.
OnStation reads your CAD design files directly. You upload the project, the alignment renders with stations, tick marks, and labels, and your team is in the field within ten minutes. No GIS analyst. No form designer. No Arcade expressions to write. No filters to define.
That is not a knock on Field Maps. It is a category truth. A general purpose GIS platform has to be built before it can be used. A purpose built tool for road construction starts where road construction starts: with the alignment.
to stationed project
Esri Partner Member
OnStation is an Esri Partner Member. We transfer project data directly into your GIS system, so your enterprise asset inventory stays where it belongs. Keep Esri for your enterprise GIS layer. Use OnStation for your road work. The two work together.
Getting lost is margin loss.
Every minute your crew spends figuring out where they are is margin you do not get back. OnStation puts a station reading on every phone.