China Railway Narrows Advance Booking Window on Beijing-Shanghai Lines to 30 Days

This is a niche operational tweak confined to two pilot routes, not a system-wide policy shift, so its direct market relevance is limited. The signal worth noting is the direction of travel: a narrower booking window suggests the pilot is being recalibrated rather than expanded, which matters for anyone tracking how China Railway tests demand-management tools before wider rollout. Whether the window is restored or trimmed further on these lines is the open question, and any eventual extension beyond the pilot would carry more weight than the pilot itself.