Quick Time Map (Isochrones)

Time Map

Summary

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.

Using the tool

Select the tool by clicking on it, then open the dialogue box under the dropdown arrow. Fill in the parameters, then either:

  1. Enter an address, and click ‘Run’
  2. Enter a lat-long point, and click ‘Run’
  3. Click on the map canvas

A new layer will be added to the project with the time. This layer is a ‘temporary layer’. If you need to save it, right click on it in the legend, and choose ‘Make permanent’.

Parameter Description Data Type
Transport Mode Method of transport Picklist
Journey Time The maximum journey time - allows up to 3 journey times Text
Time Zone Time zone Picklist
Departure / Arrival Searches Whether the calculated area will be for journeys departing or arriving at the chosen location Picklist
Departure / Arrival Time The departure or arrival time. This will get updated as per the time zone selected. Calendar Format - dd/mm/yyyy hh:mm
Departure / Arrival Location (Address) Text address of the departure / arrival location Text
Departure / Arrival Location (Lat-Long) Coordinates of the departure / arrival location Text

Things to note

The ‘Journey Time’ field cannot be left blank. In order to only return one or two isochrones, simply enter 0 as the value in the spare time fields.

The magnifying glass button can be used to verify the address or lat-long has been geocoded correctly, before running the tool.