Discrete Dynamics in Nature and Society

Research Article

A New Model of Stopping Sight Distance of Curve Braking Based on Vehicle Dynamics

Table 2

Comparison of various stopping sight distances.


Design/running velocity (km/h)	Different circular curve parameters [17]		Specification values [13] (m)	Literature values [11] (m)	Equation (21) values (m)	Running distance within (m)	Experimental values (m)		Experimental final values (m)
Design/running velocity (km/h)			Specification values [13] (m)	Literature values [11] (m)	Equation (21) values (m)	Running distance within (m)

120/102	1000	0.29	210	191.72	228.1	76.4	203.1	Rollover	279.5	Rollover
100/85	700	0.30	160	143.37	169.1	63.7	142.3	101.2	206.0	166.9
80/68	400	0.31	110	101.58	118.4	51.0	91.8	65.3	142.8	118.3
60/52	200	0.33	75	72.09	78.5	39.1	58.2	43.4	97.3	84.5

Note: is the friction coefficient of the wet road; Specification values and literature values are obtained by straight-line brake stopping sight distance; s (according to provisions of Technical Standard of Highway Engineering [18], the value of braking reaction time is 2.5 s; according to Yuan et al. [11] research, the build-up time of the braking force is 0.2 s); m/s² in (21); the final experimental values are obtained from experimental values plus the running distance within .