Improvement Strategy at Pedestrian Bottleneck in Subway Stations

Table 3

Descriptive statistics of speed under different measures.

Angle of funnel (°)	Mean (s)	Medium (s)	Max (s)	Min (s)	Std.	Rate of mean change
None (1-1)	0.596	0.452	1.677	0.086	0.353
Funnel of 30° (2-1)	0.606	0.422	1.948	0.011	0.361	1.68%
Funnel of 45° (2–2)	0.619	0.498	1.890	0.000	0.359	3.86%
Funnel of 60° (2-3)	0.603	0.490	1.906	0.008	0.346	1.17%
Guardrail (3-1)	0.594	0.521	2.671	0.021	0.359	-0.34%
Broken guardrail (3–2)	0.777	0.761	2.292	0.030	0.396	30.37%
Concave (4-1)	0.744	0.725	2.008	0.023	0.375	24.83%
Convex (4-2)	0.684	0.622	2.666	0.015	0.358	14.77%
Column in the middle (5-1)	0.693	0.656	2.030	0.045	0.345	16.28%
Column on the right (5-2)	0.691	0.671	1.907	0.000	0.359	15.94%
Column on the left (5-3)	0.718	0.719	1.942	0.026	0.370	20.47%