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Big Detour Prevention (BDP) Explained by Bill473
==== Big Detour Prevention (BDP) Explained by Bill473 ====
{{mbox|type=caution|text=This section was written in 2015, when the over-application of detour prevention caused routing errors. Due to changes to the algorithm in 2017, these types of problems no longer occur, but now detour prevention can be under-applied, so understanding how it works is still important in resolving routing problems.}}
''The following was originally presented by Bill473 as a training aid to satisfy the BDP requirement to attain R4 rank for both of us. Bill has made changes based on feedback from PesachZ and TerryPurdue but remains responsible for any errors or omissions. If you have suggestions to make this better, please contact either [ Ron] or [ Bill].''
Here's the [ LiveMap link] to the area.
====<u>Waze Turn Instructions and When, Why They Occur</u>====