Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data

Table 2

Tunnel lateral clearance marking scheme.

Expressway	Design speed km/h	Speed limit km/h	Scheme number	Lateral clearance (LC/m)
				LCright	LCleft
BinLai high-speed test site	120	100	1	1.75	1.25
			2	2.00	1.50
			3	2.25	—
BinLai	100	90		1.25	1.00
Baomao	80	70		1.00	0.75