The Targomo - TimeService

In typical GI systems, reachability tests are usually carried you via Point-In-Polygon tests. This is bad because of a number of reasons:

  1. We need to generate the polygons first
    • Depending on the complexity of the polygon, especially for transit polygons and high travel times, this can be a time consuming task
  2. We need to transfer the generated polygon over the wire (unzipped polygons for large travel times can be >2MB in size) and we have to render them
  3. The Point-In-Polygon test (PIP) needs to be performed
    • This is actually a complex task and can take a lot of time in case of a large number of targets and huge polygons
  4. Point-In-Polygon tests won't give you precise travel times for your targets
  5. Our polygons render at different levels of precision depending on zoom, for performance and readability

To sum this up: Our polygons are great for visualizing travel times. For analyzing them, use our TimeService.


Get precise travel time to all of your source points

Measure for multiple sources

Use travelOptions to set options

The most powerful part of the TimeService is that we can get actual measures - not classified distance groups. So we know exactly how far away each point is. In the demo below, we use that precision to determine symbology by applying a d3 color scale to the points, to really visualize precise distance. You can use this for filtering by distance as well - check out our demo.

Bike distance to museums within 30 minutes

No need for distance classes here, we can apply a color-scale to our points

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