Impacts of Snowy Weather Conditions on Expressway Traffic Flow Characteristics

Table 3

Spot speed distribution in certain expressway section.

Spot speed (km/h)		<30	30–40	40–50	50–60	60–70	≥70
Distribution; Frequency (%)	Normal weather	0	0	0	23.81	75.15	1.04
	Heavy snow	0	15.14	73.72	11.14	0	0