Free Online Swept Path Analysis

For free and with no signup, you can draw paths and compute swept curves directly in your browser with four standard vehicles (passenger car, delivery van, 2-axle truck, bus). You can calibrate scale on a site plan (including PDF site plans), draw turning paths, see the swept envelope in real time, and export as PNG/JPEG. The Project Pass (€39 one-time per project) adds 107 design vehicles from 10 national libraries (RBSV 2020, AASHTO 2018, Austroads 2023, UK (DB32/FTA), CERTU (France), Norma 3.1-IC/Spain, 道路構造令/Japan, MOLIT/South Korea, 市區道路設計規範/Taiwan, TPDM/Hong Kong), custom vehicles, DWG/DXF upload and DXF export.

The free tier includes four generic standard-vehicle templates with typical dimensions, similar to the RBSV 2020 reference vehicles: a standard passenger car, a delivery van, a 2-axle truck, and a standard bus, not official RBSV 2020 reference vehicles, but sufficient for feasibility studies and plausibility checks. The Project Pass adds 107 design vehicles from the RBSV 2020 (incl. refuse truck), AASHTO 2018, Austroads 2023, UK (DB32/FTA), CERTU (France), Norma 3.1-IC (Spain), 道路構造令 (Japan), MOLIT (South Korea), 市區道路設計規範 (Taiwan) and TPDM (Hong Kong) libraries, and a custom-vehicle editor where you can enter dimensions from your own manufacturer data sheets. The articulated vehicles (semi-trailer, truck and trailer, centre-axle trailer, articulated bus, B-doubles and road trains) are included as well. There is no German design vehicle for fire apparatus: German fire appliances are described in DIN standards and are not part of RBSV 2020. The dimensions of a DLK 23/12 can be entered from the manufacturer data sheet in the vehicle editor, and the UK library includes a fire appliance (DB32 Fire Appliance).

No: the four free standard vehicles (passenger car, delivery van, 2-axle truck, city bus) are generic templates with typical dimensions, not the official RBSV 2020 design vehicles. They are sufficient for feasibility studies and plausibility checks. The €39 Project Pass includes all 13 official RBSV 2020 design vehicles (passenger car, additional truck classes, city and coach bus, refuse truck, plus the articulated semi-trailer, truck-and-trailer, centre-axle trailer and articulated bus) and the custom-vehicle editor. German fire apparatus have no design vehicle in RBSV 2020; the aerial ladder is specified in DIN EN 14043 / DIN 14502 (available from DIN Media) and is built from the datasheet in the custom-vehicle editor, while UK fire appliances (DB32, LFB) ship in the UK library.

PDF site plans can be uploaded for free as a background: drop a PDF into the upload modal and calibrate the scale like any other site plan. DWG and DXF upload, plus DXF export, are included in the Project Pass (€39 one-time per project). As a separate free tool, you can use our public DWG to DXF converter without an account.

Yes. Swept-path calculation, calibration and PNG/JPEG export are permanently free and run entirely in your browser, with no signup required for the basic flow, no tracking cookies, and no third-party tracking. We use self-hosted, IP-anonymized analytics only. Only the optional Project Pass (€39 one-time per project) for the design-vehicle libraries, custom vehicles and CAD export is paid.

Yes. Users of AutoTURN Online or InSTRATO get reduced first-year pricing on the PathSweeper Annual Pass. Proof of an existing licence (your invoice as PDF) is required; the code is issued on the switcher offer page and stays valid for 12 months, so it also works if you have just renewed. From the second year the Annual Pass renews at the regular list price.

No. PathSweeper runs entirely in your web browser (Chrome, Edge, Firefox). It is a lightweight alternative to installing heavy CAD plugins or vehicle tracking software.