# Road.Engineering

> Road.Engineering is a browser-based road design and analysis platform for civil and traffic
> engineers. Users work on an interactive map to run sight distance, elevation, alignment,
> swept-path, earthwork-volume and crash-data analyses, then export the results.

This file is an AI-readable guide to the platform, following the llms.txt convention. It helps
an AI assistant understand how the app works and guide a user through it. A fuller guide with
step-by-step workflows and troubleshooting is at /llms-full.txt.

All results are preliminary engineering aids and must be checked by a qualified engineer before
use. See https://road.engineering/disclaimers and https://road.engineering/sources.

## How the app is structured

Road.Engineering is a single-page map application, not a set of separate pages. After signing
in, the user sees one map view. Tools are opened from a toolbar on the map (not from URLs), and
results appear in panels and charts docked to the map. Account settings open from the header.

## Core capabilities (tools)

- Point Elevation — read the ground elevation at a clicked location.
- Elevation Profile — draw a path and view the ground profile along it.
- Contours — generate contour lines over an area.
- Sight Distance suite (SSD, ASD, SISD, MGSD, CSD) — measure available sight distance along a
  road or at an intersection and flag where it is short.
- Route Analysis — review alignment geometry and an operating-speed profile along a route.
- Cross-Section — inspect a cross-section cut across a road.
- Swept Path — simulate the path swept by a turning design vehicle.
- Volume Analysis — compute cut/fill earthwork volumes between two surfaces.
- Crash Analytics — explore and visualise road-crash data on the map.
- Project Layers upload (CAD / GIS import) — add survey surfaces and design files as map layers
  (via the sidebar's Project Layers panel, not the map toolbar).

## Tool access

Point Elevation, Elevation Profile, and crash-data viewing are available to everyone. The other
tools, plus file upload and DEM elevation, require a paid plan. If a tool appears greyed out or
shows an upgrade prompt, it isn't included in the current plan.

## Key facts

- Public URL: https://road.engineering/
- Support: support@road.engineering
- Coverage: elevation and crash data are strongest in Australia and New Zealand.

## More detail

- Full AI guide (workflows + troubleshooting): https://road.engineering/llms-full.txt
- Human page to copy/download this guide into your AI: https://road.engineering/ai
- Data sources & attribution: https://road.engineering/sources
- Disclaimers: https://road.engineering/disclaimers
- Terms: https://road.engineering/terms · Privacy: https://road.engineering/privacy