Entry point logic

Entry point logica

Routing without an entry point: The default logic

The Waze routing server follows a complex, multi-step filtering process for destinations without a defined entry point. This means the server doesn’t route directly to segments like ramps or tunnels. Instead, it routes drivers to a nearby standard road. This was designed primarily to prevent drivers being routed to potentially hazardous or inaccessible locations.

Here’s how the routing server works when a venue has no defined entry point:

Identify segments: The server looks for all road segments within a certain radius of the venue’s coordinates
Sort segments: It then sorts these segments by distance
Apply filters: The server then applies a series of filters to this list:

• Filter out undesirable road types, like freeways and ramps
• Filter out segments with undesirable road attributes, like tunnels
• Filter out segments separated from the venue by geographical barriers, like rivers

Choose destination:

• If the filtered list is not empty, the system chooses the closest segment as the destination for the final route
• If the filtered list is empty, the system ignores all filters and routes to the single closest drivable segment, regardless of its type.

While this approach is well-intentioned, it can sometimes lead to situations where drivers miss legitimate stops (such as a bus station located on a ramp) and are occasionally directed to a less optimal or incorrect location.

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