---
title: "Geofencing vs building matching"
url: "https://support.accurat.ai/en/article/geofencing-vs-building-matching"
language: "en"
last_updated: "2025-06-04T08:54:29.627Z"
---

# Geofencing vs building matching

Geofencing is a commonly used technique to estimate foot traffic. For a building, billboard or other location, a circle is drawn with a radius of typically 50-100m. Every enter or exit event - whenever a smartphone enters or exists the geofence - is counted as an interaction. People passing by the crossroad nearby are counted equally for people having actually visited the location. 

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXe9REPy7vSzIybDHLiAh-62WxujJmbxu6J63m5AuKeMg77wyRwlmHYy3KRFe5KPRegRbA4iOk1MskguBaO1wvxxLazN6h591j7zpihOhocWJx4a0aJQYwrdTOgyr73H6V019zysGA?key=NlIFlyvP2goJg2m9PXDJb1TM)

**Building matching** or **route mapping** of the taken route based on a combination of coordinates provides an alternative and more accurate approach to define visits or “interactions”. In this case, smart algorithms define the *visit probability* based on all coordinates, the building shape or the orientation of a billboard, the travel direction, the dwell time of the visit (time between coordinates), the speed of travel, opening hours, the time of day, the transport mode etc. 

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXeYwWJUCN0i7Cj8OOgf6mtJ61hGYPGLx3iITulgXfhJgf8HNMJ7J6TQR4ho7NOcr4jA7eLRWiYd8TePNRWIYdDorPeGoZnG4U2H6ECyn0UM_sorfg4buBOVYf6Hdj9jkNxHbVW3aw?key=NlIFlyvP2goJg2m9PXDJb1TM)

The picture below illustrates how this works in practice.

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXe0yeJWmkR7QY7Yj8lZP8nN-8A3HVFIpPZzFPo_P0YfIa6X7d16AVD-0Ewvqepn36NKQPwiG3pLKXEEL0gRjlDz6TxRO_8k067_4RdH7sTOT_7fryOMiU1lZbN-F-sHNbdjrbtX-w?key=NlIFlyvP2goJg2m9PXDJb1TM)