Research on the Mechanism of Influencing Factors of the Urban Road Traffic Operation State

Table 4

SEM variables for influencing factors of road traffic operation status.

Latent variable	Measured variable
Road traffic operation status	Average speed of key roads Y1
	Average speed of other roads Y2
	Key area traffic index Y3
	Other area traffic index Y4
	Number of accidents Y5
	Number of congestion alarms Y6
Service equipment operation level	Parking space vacancy rate X1
	Online rate of road traffic guidance screen X2
	Network coordinated control intersection ratio X3
Control equipment operation level	Online rate of traffic lights X4
	Online rate road section monitoring X5
	Online rate of intersection electric police X6
Municipal boundary demand	Traffic volume entering the intracity area X7
	Traffic volume leaving the intracity area X8
	High-speed traffic volume around the city X9
Intracity demand	Expressway traffic volume X10
	Arterial road traffic volume X11
	Traffic volume on other roads X12