Criterion

Importance

Priority

Alternative

Importance

Priority

Process

0.118

4

Interruption of sub-operation due to curing water for concrete

0.099

5

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

0.070

6

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

0.060

7

Rush work performance for process retrieving

0.124

3

Delay in the duration due to the design change

0.101

4

Acceleration claim by a owner

0.136

2

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

0.409

1

Cost

0.176

3

Additional work due to lack of clarity in drawings

0.057

5

Error in the material amount calculated

0.106

4

Lack of temporary electricity and water supply

0.155

3

Delay in a progress payment by a owner

0.240

2

Technologies cannot meet required performance

0.442

1

Safety

0.243

2

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

0.064

4

Drop of salvaged object due to faulty shackle fastening

0.056

6

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

0.064

4

Accident due to insufficient preparation in advance

0.149

3

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

0.296

2

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

0.371

1

Quality

0.463

1

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

0.114

4

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

0.099

5

Defect of containment liner plate

0.072

6

Inappropriate quality assurance procedure

0.204

3

Inappropriate curing of a part requiring curing

0.241

2

Placement height limit of the form

0.270

1