Criterion

Importance

Priority

CR

Alternative

Importance

Priority

CR

Process

0.123

3

0.072

Interruption of sub-operation due to curing water for concrete

0.207

2

0.115

Delay in the process due to a failure of a tower crane

0.074

5

Delay in the process due to delay in payment for purchased materials

0.042

7

Rush work performance for process retrieving

0.103

3

Delay in the duration due to the design change

0.069

6

Acceleration claim by a owner

0.095

4

Deterioration in constructability with the increase of the lateral pressure when concrete is placed

0.409

1

Cost

0.488

1

Additional work due to lack of clarity in drawings

0.054

5

0.010

Error in the material amount calculated

0.106

4

Lack of temporary electricity and water supply

0.153

3

Delay in a progress payment by a owner

0.234

2

Technologies cannot meet required performance

0.452

1

Safety

0.340

2

Damage to the sling belt and wire due to the salvage of excessive weight

0.079

4

0.079

Drop of salvaged object due to faulty shackle fastening

0.048

5

Falling accident related to work in high places with form or rebar

0.048

5

Accident due to insufficient preparation in advance

0.143

3

Occurrence of thermal stress in the work inside of the reactor containment building

0.312

2

Lack of safety of the piping within the reactor containment building for the earthquake load

0.370

1

Quality

0.049

4

Coating of inappropriate coating curing compound due to the coarse surface of concrete

0.185

4

0.083

Breakage of the piping when concrete was placed on a high step

0.111

5

Defect of containment liner plate

0.052

6

Inappropriate quality assurance procedure

0.217

2

Inappropriate curing of a part requiring curing

0.224

1

Placement height limit of the form

0.211

3