Driving Safety Assurance Method in Work Zone Crossovers of Highway Reconstruction and Expansion Project

Table 4

distribution in entrance and exit by-pass among different median widths.

Median width (m)
50	Entrance by-pass	40.35	43.17	12.57	12.5	100.56
	Exit by-pass	49.66	45.50	8.58	37.5	22.89
70	Entrance by-pass	49.40	44.83	6.10	52.5	11.63
	Exit by-pass	55.11	52.80	3.50	35	10.00
90	Entrance by-pass	53.39	52.22	13.96	22.5	62.02
	Exit by-pass	56.89	55.81	10.62	45	23.59
110	Entrance by-pass	56.71	54.20	2.21	55	4.01
	Exit by-pass	58.66	60.15	5.27	82.5	6.39
130	Entrance by-pass	59.36	58.19	5.75	97.5	5.90
	Exit by-pass	59.64	57.53	2.20	32.5	6.76

Note. is the initial speed of the entrance or exit by-pass; is the speed at the end of the deceleration section. Neither nor satisfies the consistency of the operating speed. One of the two parameters meets the consistency of the operating speed.