title: Commute Time Maps and Commute Radius Maps: How to Use Them
url: https://boardspy.site/blog/commute-time-map/
type: Article
dateModified: 2026-08-24
publisher: BoardSpy
quick_answer: Quick answer: These are two different tools that people often confuse, and one of them is considerably more useful than the other.
primary_keyword: commute time map
keywords[9]{term}:
  commute time map
  commute radius map
  KD 19)
  commuting radius map
  KD 22)
  commute distance map
  KD 37)
  commute map
  isochrone map commute
faqs[3]{q,a}:
  What is a commute time map?,A commute time map, sometimes called an isochrone map, shows every location you can reach from a starting point within a given travel time. Unlike a radius map it follows real roads, so the shape stretches along fast corridors and pinches at bottlenecks.
  What is the difference between a commute radius map and a commute time map?,A radius map draws a circle of fixed distance around a point, ignoring roads. A commute time map shows what is reachable within a time limit along actual roads. The time map is far more useful for a real commute, because travel time is not proportional to straight-line distance.
  What time of day should I set when using a commute time map?,Set it to the hour you would actually travel, in the direction you would travel. A map generated for free-flow conditions can show an area two or three times larger than the one reachable at peak, which is misleading if you are choosing where to live.
citations[0]{name,url}:
internal_links[1]{label,url}:
  roughly 50-mile local commuting area,https://boardspy.site/blog/reasonable-commuting-distance/