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

Table 9

Surveyed data of thermal cracking on Haxihuan Highway since traffic opening.

Milestone	Dir.	Crack number			Crack index			Crack space (m)
		30 mon.	48 mon.	72 mon.	30 mon.	48 mon.	72 mon.	30 mon.	48 mon.	72 mon.
K46-K47	+	20	30	30	2	2.7	3	52.6	38.5	34.5
	−	22	27	42	2.2	3	4.2	47.6	34.5	24.4
K47-K48	+	23	30	30	2.3	2.7	3	45.5	38.5	34.5
	−	20	27	31	2	2.6	3.1	52.6	40.0	33.3
K48-K49	+	15	26	25	1.5	2.1	2.5	71.4	50.0	41.7
	−	17	21	25	1.7	2	2.5	62.5	52.6	41.7
K49-K50	+	18	20	25	1.8	2.3	2.5	58.8	45.5	41.7
	−	20	23	28	2	2.2	2.8	52.6	47.6	37.0