High Speed Railway Environment Safety Evaluation Based on Measurement Attribute Recognition Model

Table 2

Japanese Shinkansen winds threshold.

Wind scale	Wind speed (m/s)	The impact with no wind-break wall	The impact with wind-break wall
8.0-9.0	20–25	The train speed under 160 km/h	No speed limit
9.0–10.4	25–30	The train speed under 70 km/h	The train speed under 160 km/h
10.4–12.5	30–35	Off-stream	The train speed under 70 km/h
Above 12.5	Above 35	Off-stream	Off-stream