This tool creates isochrones, also known as travel time polygons or catchment areas. It visualises all the locations that are reachable within a time limit based on selected parameters including transport mode & departure/arrival time.
Only the key parameter fields are configurable. The more complex parameter fields (available in the Advanced tool) take standard, sensible values.
| Parameter | Description | Data Type |
|---|---|---|
| Locations | The point layer to be used as the departure / arrival locations | Picklist |
| Travel Mode | Method of transport | Picklist |
| Time Zone | Time zone | Picklist |
| Departing / Arriving | Whether the calculated area will be for journeys departing or arriving at the chosen locations | Picklist |
| Departing / Arriving Time | The departure or arrival time. This will get updated as per the time zone selected. | Calendar Format - dd/mm/yyyy hh:mm |
| Travel time | The maximum journey time (in minutes) | Text |
| Result aggregation | 1. NORMAL - returns a reachable polygon for each location 2. UNION - returns the union of the reachable polygons 3. INTERSECTION - returns the intersection of the reachable polygons | Picklist |
| Output Layer | Where to save the output layer – NB must be saved into the project Geodatabase | Folder connection |