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When drawing a radius map, the shape you expect to create is a circle. To create a simple 5 mile radius map you must draw a straight line that is 5 miles long and using these straight lines to make the circumference of the circle. This means a 5 mile radius assumes that we can travel as the crow flies.
To make this more accurate we can show a 1 hour travel time map, using real routes and journey times instead of straight lines. This has been possible for analysts using GIS data for some time, but now it can be done in a simple app.
Our app allows you to draw travel time maps for different transport modes, so you can see how far you can travel within a time limit. Create a travel time map here
Travel time maps in the UK
To create a more relevant map a new radius tool of UK maps calculates a travel time radius (an isochrone) rather than using distance. It's free to make your own using driving, cycling, walking and public transport.
Example UK maps
These shapes are very different to using a circle to show where's nearby your location.The example below shows where's reachable within a 15 minute drive.
1 hour radius by public transport
30 minutes cycling
Are you using radius maps to export location data?
It's possible to export all postcode data that falls with a travel time area using TravelTime. Great for building direct marketing lists, analysing catchment areas and geofencing. Not sure where to begin when using postcode data? Check out our blog on radius mapping.
