Detour Prevention Mechanisms

Waze routing includes a mechanism to prevent routing off a highway/freeway only to be routed right back on the same highway/freeway. The assumption is that drivers will prefer to remain on the highway/freeway even if waze calculates that taking a series of ramps or other collector/distributor roads is slightly faster or shorter.

Waze routing will not present routes over a detour off a highway/freeway and back on that same highway/freeway when each of the following conditions are met:

1. the last segment on the highway/freeway before the detour has the same street name and same city name as the next highway/freeway segment after the detour,
2. the detour is more than one segment long,
3. the detour is over segments of a different road type than the highway/freeway, and
4. the detour is under the threshold length as defined below.

Road Type	Threshold
Freeway	5km
Major Highway	5km
Minor Highway	500m