TravelTime platform blog

How to create drive time polygons

Posted by Louisa Bainbridge on Feb 16, 2016 6:01:00 PM

Drive time maps

Creating drive time polygons (an isochrone) ‘where can I reach within 30 minutes?’ uses a whole different set of processes to distance-based mapping. Drive time maps aren’t simple circles like miles radius (find out why 'travel time radius' is impossible here). This blog explains how to plot shapes by minutes not miles – no radius in sight. To create these maps we’ve used the TravelTime search API, but you can also use your own time mapping software. If you're a developer get an API key here. If not we have a desktop app that does it free, try it below. 
draw drive time polygon

Select an origin

 For simple drive time maps, one origin point may be enough. For more complicated map-based analysis, select more than one origin. Using multiple origin points creates a larger area of interest, e.g. map all areas within 15 minutes drive from point A or point B. It’s also possible to identify prime locations suitable for more than one point of origin e.g. map the area that’s within 30 minutes from point A as well as point B.

Select a time of day

 Unlike distance-based mapping, drive time maps can significantly change shape depending on the time of day of the search. Selecting a time during peak rush hour will reduce the size due to congestion on the roads.

Arrival / departure time

Select which direction the travel times should be calculated. Arrival time maps display all locations that arrive at the origin point by the selected time. Departure time maps highlight locations that are reachable assuming they start driving from the origin at the selected time.

Select the travel time

 Choose the maximum driving time in hours and minutes. Use multiple polygons to highlight the additional locations available if extra drive time is added. Take a look at all transport modes available of our isochrones

Send an API request

 Choose the maximum driving time in hours and minutes. Use multiple shapes to highlight the additional locations available if extra drive time is added. Developers -  check our an article that creates a sample app here

The maps shown in this post use Leaflet



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Topics: radius maps, TravelTime Analytics, TravelTime Search, TravelTime Maps & Isochrones

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Convert 300% more users 

TravelTime search is 3x more effective in converting users than a miles radius location search 

Whether your users are searching for their next property, job or a place to stay, it’s important that they’re given the right locations to choose from. Instead of assuming they can go as the crow flies, TravelTime Search API finds and filters points of interest by time.  

  • Personalised: users can filter by transport mode and time of travel
  • Contextual: search areas change with congestion and location
  • Relevant: results are 60% more relevant when using time vs. distance


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