From Wazeopedia

Detour Prevention Mechanisms

2 bytes added, 4 years ago
{{@|Criteria}}: markup
#*This alternative route may also be a detour itself, as long as it is a different route and doesn't use the same segments as the original possible detour being evaluated.
#The first segment after the possible detour must be accessible from another segment of the same road type group.
#*''If the first segment after the possible detour is the beginning of the Fwy/Hwy and can only be accessed from ramps, or segments of a different road type group, it will not be considered a part of a Fwy/Hwy continuation - thereby cancelling BDP.''
#The possible detour is not composed of the same 'Road Type Group' as the continuation after the possible detour.
#The name-discontinuity is more than one segment long, and