Calibration on MEPDG Low Temperature Cracking Model and Recommendation on Asphalt Pavement Structures in Seasonal Frozen Region of China

Table 8

Surveyed data of thermal cracking on Qitai Highway after 6 months since traffic opening.

Stake mark	Distance (km)		Crack number	Crack index	Crack space (m)
K2 + 300~K4 + 000	1.7	Plus	54	3.2	31.5
		Minus	51	3.0	33.3
K39 + 000~K41 + 000	2	Plus	73	3.7	27.4
		Minus	53	2.7	37.7
K50 + 000~K52 + 000	2	Plus	65	3.3	30.8
		Minus	46	2.3	43.5
K84 + 000~K86 + 000	2	Plus	53	2.7	37.7
		Minus	56	2.8	35.7
K102 + 000~K104 + 000	2	Plus	41	2.1	48.8
		Minus	49	2.5	40.8
K130 + 000~K132 + 000	2	Plus	94	4.7	21.3
		Minus	82	4.1	24.4