Browser-based traffic digital twin
Import OSM, GIS, CAD or LandXML, automatically clean the network, add traffic data and simulate directly in your browser.
No credit card · free tier forever · open data
Deterministic microsimulation with real-world driver behavior and demand.
Read queue length and throughput to evaluate and compare outcomes.
Model closures and what-if edits, then compare against a baseline.
Save, sync, and share projects from anywhere — no install required.
Feature tour
One continuous workflow — import real data, refine the network, define demand, simulate, and analyze the outcome. Every step works on the real network, not a toy grid.
Search a place, pick road classes, pull the real network
Search any location, draw an import area, choose the OSM road classes you need — motorways through service roads — and fetch real geometry via the Overpass API. Imports normalize automatically into editable centerlines and a routable lane graph, with original OSM IDs preserved for traceability.
Bring your own data: GeoJSON, Shapefile, GeoPackage, DXF, LandXML
Build networks from GIS files with guided field mapping and topology checks, incorporate DXF CAD drawings through layer mapping, and import LandXML alignments, profiles, and cross sections — with revision-aware re-import that recognizes an updated design and shows what changed.
Reshape geometry, configure lanes, swap junction types
Move centerline nodes, change lane counts and speed limits, draw new roads, and switch junctions between uncontrolled, signalized, and roundabout control — or generate complete interchanges from parametric templates such as diamond, cloverleaf, trumpet, and SPUI. Every edit is undoable.
A readable 3D scene with markings, bridges, and ramps
The network model generates its 3D view automatically: road surfaces, curvature-following lane dashes and edge markings, junction surfaces, and elevation handling so bridges render above base roads and ramps rise and descend smoothly.
Multi-node crossings with coordinated phases and protected lefts
Complex signalized crossings cluster into unified junction areas with curved lane connectors for every turn movement and coordinated multi-phase timing — including protected left turns that re-coordinate automatically after edits.
Place traffic sources, set destinations, preview routes
Click a lane to place a traffic source, assign destinations with flow ratios, and preview the routes between them — with editable vehicle classes and driver profiles covering desired speed, aggressiveness, following gap, and acceleration comfort.
Seed demand from real road sensors, including back in time
Demand mode pulls live counts from official road-sensor networks in the Netherlands, Finland, France, and Iceland and converts them into traffic-source demand — with an optional history archive that lets you rewind demand to a past time window.
Vehicles route, follow, and change lanes with realistic models
A deterministic fixed-step engine runs off the main thread: vehicles route to their destinations using established car-following and lane-change models (ACC: IIDM + CAH, MOBIL), prepare lanes ahead of turns and exits, and respond to signals and closures in real time.
Compare scenarios and turn simulation runs into evidence
Save runs and compare them against a baseline — close a road and quantify the impact. Congestion heatmaps, time-series charts, junction and turning-movement diagnostics, and spatial filtering turn every run into results you can present.
Pricing
The local editor is free forever. Paid tiers add cloud save, larger import areas, and collaboration.
Local traffic modeling and evaluation.
Individual professionals who need cloud data and advanced tools.
Organizations collaborating in a shared traffic-modeling workspace.
Organizations requiring custom limits, procurement, onboarding, and support.
Compare plans
These published limits are the entitlements the billing system enforces.
| Feature | Free | Pro | Team | Enterprise |
|---|---|---|---|---|
| UsersUsers | 1 | 1 | 2–10 | Custom |
| Cloud save and syncCloud sync | Not included | Included | Included | Included |
| Shared workspaceShared workspace | Not included | Not included | Included | Included |
| Maximum network import areaImport area¹The limit applies to each imported network, not to the total area across every project. | 5 km² | 25 km² | 100 km² | Custom |
| GIS importGIS import | Not included | Included | Included | Included |
| CAD importCAD import | Not included | Included | Included + shared presets | Included + shared presets |
| Custom profilesCustom profiles | Not included | Included | Included | Organization-wide |
| Shared profile libraryShared profiles | Not included | Not included | Included | Organization-wide |
| Live traffic dataLive traffic²Availability varies by region and provider. Some third-party sources may charge separately. | Not included | Supported regions | Supported regions | Supported regions |
| Historical traffic dataTraffic history²Historical coverage depends on the selected region and data provider. | Not included | Not included | Supported regions | Supported regions |
| ExportsExports | Basic image export | Standard exports | Advanced exports | Advanced exports |
| AnalyticsAnalytics | Basic | Advanced | Scenario comparison | Scenario comparison |
| Roles and permissionsRoles | Not included | Not included | Included | Included |
| AuthenticationAuthenticationTeam and Enterprise use standard individual accounts today. SAML and SCIM are not currently advertised. | Standard account | Standard account | Standard account | Standard account |
| SupportSupport | Community | Priority | Priority | SLA + onboarding |
| Enterprise administrationEnterprise adminSAML, SCIM, administration UI, and custom connectors are future Enterprise entitlements and are not currently deliverable. | Not included | Not included | Not included | Not included |
FAQ
No. Road Mesh runs in the browser. Every plan includes unlimited local projects, the local road editor, traffic simulation, and OSM network import subject to its per-import area limit. Pro and above add cloud save and sync.
Real OpenStreetMap data, fetched live via the Overpass API for whatever area you import. Original OSM IDs, geometry, and tags are preserved so the network stays traceable back to the source, and you can layer in GIS sources on Pro and above.
It's a deterministic, rule-aware microsimulation built for planning. Vehicles use car-following (ACC: IIDM + CAH) and MOBIL lane changing, prepare lanes before turns and exits, and respond to coordinated signals and closures — not scripted animation.
Yes. Close a lane or segment and closure-aware routing immediately steers new vehicles around the blockage. Compare a baseline against the closure scenario and read the difference in queue-length and throughput metrics.
Free is local-only with a 5 km² import area. Pro is $49/month and adds personal cloud sync, a 25 km² limit, GIS/CAD import, live traffic data, custom profiles, data exports, and advanced analytics. Team is $79/user/month for 2–10 seats and adds a shared workspace, a 100 km² limit, shared asset libraries, historical traffic, advanced exports, scenario comparison, and roles. Enterprise adds contract-specific limits, billing, onboarding, and support.
Today the live counter feeds cover the Netherlands, Finland, France and Iceland, converting real counts into traffic-source demand. With the optional history archive enabled you can rewind to a past time window. Everywhere else you set demand manually with traffic sources and driver profiles.
