Occupation: Railroad Brake, Signal, and Switch Operators
Task: Watch for and relay traffic signals to start and stop cars during shunting.

Scale: Frequency of Task (Categories 1-7)
Category: 1
Value: 0.55 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 2
Value: 6.16 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 3
Value: 8.4 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 4
Value: 10.21 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 5
Value: 31.75 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 6
Value: 22.74 (N=55)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 7
Value: 20.19 (N=55)
Source: Incumbent, 06/2007

Scale: Importance
Value: 4.09 (N=57)
Source: Incumbent, 06/2007

Scale: Relevance of Task
Value: 46.18 (N=122)
Source: Incumbent, 06/2007