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The result from Step 2 is a high-level route – a sequence of shortcuts connecting border points.
Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
В России ответили на имитирующие высадку на Украине учения НАТО18:04