Prediction Methods for Routine Maintenance Costs of a Reinforced Concrete Beam Bridge Based on Panel Data

Table 4

Sample sequence stability test.

Items
Replacement of expansion joints	36	12	24	12	17	2.62	1.92
Repair of expansion joint concrete	40	18	22	17	20.80	3.09	1.23
Maintenance of steel handrails	44	21	23	18	22.95	3.27	1.51

is time-series length; is the number of values greater than the average of the time series; is the number of values less than the average of time series; is the total number of run lengths of the sequence; ; ; is the test statistics; ; .