Spreadsheet: 09c6471a-b53c-4786-a9f6-56c68dbc39ec
Sheet: Field Definitions

Name | Type | Definition | Notes
Background Data
ID Number | String | Participant ID #
Age | Numeric | Age group (1=20-29, 2=30-39, 3=40-49, 4=50-59, 5=60+)
Total years of service | Numeric | Total years as T&E employee
Years in present job | Numeric | Total years in present job
Yard ops | Numeric | Type of work, yard operations (1=applicable, no entry=not applicable)
Local frt | Numeric | Type of work, local freight (1=applicable, no entry=not applicable)
Road frt | Numeric | Type of work, road freight (1=applicable, no entry=not applicable)
Pass/comm ops | Numeric | Type of work, passenger/commuter operations (1=applicable, no entry=not applicable)
Other work | Numeric | Type of work, other (1=applicable, no entry=not applicable)
Conductor | Numeric | Current position, conductor (1=applicable, no entry=not applicable)
RCL operator | Numeric | Current position, RCL operator (1=applicable, no entry=not applicable)
Brakeman | Numeric | Current position, brakeman (1=applicable, no entry=not applicable)
Trainman | Numeric | Current position, trainman (1=applicable, no entry=not applicable)
Trainee | Numeric | Current position, trainee (1=applicable, no entry=not applicable)
[NAME] | Numeric | Current position, locomotive engineer (1=applicable, no entry=not applicable)
[NAME] | Numeric | Current position, hostler (1=applicable, no entry=not applicable)
Yard foreman | Numeric | Current position, yard foreman (1=applicable, no entry=not applicable)
Switchman | Numeric | Current position, switchman (1=applicable, no entry=not applicable)
Other position | Numeric | Current position, other (1=applicable, no entry=not applicable)
Marital status | Numeric | Marital status (1=not married, 2=married)
Children/dependents | Numeric | Number of children/dependents
Children under 2yrs | Numeric | Number of children/dependents under 2 yrs
Caffeine | Numeric | Do you drink caffeinated beverages? (1=yes, 2=no)
Daily caffeine amt | Numeric | If you drink caffeine, how many daily?
Sick days | Numeric | How many times marked off sick in the last year?
Health status | Numeric | Health status self rating (1=poor, 2=fair, 3=good, 4=excellent)
Perceived age | Numeric | Feel older, younger or same as chronological age? (1=older, -1=younger, 0=same)
Videotape | Numeric | Fatigue educational materials, video (1=yes, no entry=not applicable)
Brochure | Numeric | Fatigue educational materials, brochure (1=yes, no entry=not applicable)
Briefing | Numeric | Fatigue educational materials, briefing (1=yes, no entry=not applicable)
None | Numeric | Fatigue educational materials, none (1=yes, no entry=not applicable)
Other matls | Numeric | Fatigue educational materials, other (1=yes, no entry=not applicable)
Diagnosed sleep disorder | Numeric | Diagnosed sleep disorder? (1=yes, 2=no)
Sleep apnea | Numeric | Diagnosed sleep apnea? (1=yes, 2=no)
Medical treatment | Numeric | Receiving medical treatment for sleep disorder? (1=yes, 2=no)
Sleep where abouts | Numeric | Away-from-home sleep arrangements (1=share hotel room, 2=individual room, 3=company quiet room
Company provisions | Numeric | Company provisions for away-from-home sleep (1=provides sleeping accomodations, 2=per diem, 3=quiet room, 4=no provisions)
Schedule | Numeric | Type of schedule (1=fixed start time, 2=variable start time)
Sun Start Time | Date/Time | Work start time on Sunday (hh:[NAME])  Note: If Schedule=2, the work start and end time fields will be blank.
Sun End Time | Date/Time | Work end time on Sunday (hh:[NAME])
Mon Start Time | Date/Time | Work start time on Monday (hh:[NAME])
Mon End Time | Date/Time | Work end time on Monday (hh:[NAME])
Tues Start Time | Date/Time | Work start time on Tuesday (hh:[NAME])
Tues End Time | Date/Time | Work end time on Tuesday (hh:[NAME])
Wed Start Time | Date/Time | Work start time on Wednesday (hh:[NAME])
Wed End Time | Date/Time | Work end time on Wednesday (hh:[NAME])
Thu Start Time | Date/Time | Work start time on Thursday (hh:[NAME])
Thu End Time | Date/Time | Work end time on Thursday (hh:[NAME])
Fri Start Time | Date/Time | Work start time on Friday (hh:[NAME])
Fri End Time | Date/Time | Work end time on Friday (hh:[NAME])
Sat Start Time | Date/Time | Work start time on Saturday (hh:[NAME])
Sat End Time | Date/Time | Work end time on Saturday (hh:[NAME])
Home call time | Date/Time | At home call time (hh:[NAME])
Away call time | Date/Time | Away call time (hh:[NAME])
24 h call window | Numeric | 24-hr call window (1=applicable, no entry=not applicable)
Call window from | Date/Time | Call window start time other than 24-hr (hh:[NAME])
Call window to | Date/Time | Call window end time other than 24-hr (hh:m)
Check lineup | Numeric | # of time per day employee checks the line up
Avg work hrs per week | Numeric | Average number of work hours per week
Rest days | Numeric | Rest days (1=no guaranteed rest days, 2=2 days/week, 3=2 consecutive days/week, 4=1 day/week, 5=other
Other assignment | Numeric | Times in past year employee was used for other than regular assignment
Alertness during work | Numeric | How often do you feel rested/alert during work (1=never, 2=occasionally, 3=frequently, 4=always)
Work schedule irregular | Numeric | Stress due to irregular work schedule (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Work schedule lack of control | Numeric | Stress due to lack of control over  work schedule (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Sleep loss | Numeric | Stress due to loss of sleep (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Sleep interruptions | Numeric | Stress due to lack of guaranteed uninterrupted sleep (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Coord w/ other depts | Numeric | Stress due to coordination with other departments (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Ambiguous rules | Numeric | Stress due to ambiguous operating rules or procedures (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
[NAME] policies | Numeric | Stress due to management policies and decisions (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Job security | Numeric | Stress due to job security (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Communication | Numeric | Stress due to communication problems (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Inadequate staff | Numeric | Stress due to inadequate staffing (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Responsible for others safety | Numeric | Stress due to responsibility for others' safety (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Break time | Numeric | Stress due to lack of break time (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Time off | Numeric | Stress due to inadequate time off (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Oversight new hires | Numeric | Stress due to oversight of new hires (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Other | Numeric | Stress due to other reasons (1=no stress, 2=a little stress, 3=stressful, 4=very stressful)
Life events | Numeric | Total number of life events in the last 6 months (life events include personal illness, marital woes, birth of a child, death of spouse, change in sleep habits, trouble with law, family of friend illness, financial woes, home change, social change, family death)
Data for Sleep & Alertness Ratings
ID Number | String | Participant ID #
Date | Date/Time | Date of log entry
Falling asleep | Numeric | Sleep quality self assessment, ease of falling asleep ([NAME] scale 1-5, 1=very difficult, 5=very easy)
Waking up | Numeric | Sleep quality self assessment, ease of getting up ([NAME] scale 1-5, 1=very difficult, 5=very easy)
Sleep length | Numeric | Sleep quality self assessment, length of sleep ([NAME] scale 1-5, 1=wholly insufficient, 5=more than sufficient)
Sleep quality | Numeric | Sleep quality self assessment, quality of sleep ([NAME] scale 1-5, 1=very poor, 5=very good)
Alertness 1 | Numeric | Alertness self assessment, alertness after waking ([NAME] scale 1-5, 1=very sleepy, 5=very alert)
Alertness 2 | Numeric | Alertness self assessment, start of work ([NAME] scale 1-5, 1=very sleepy, 5=very alert)
Alertness 3 | Numeric | Alertness self assessment, end of work ([NAME] scale 1-5, 1=very sleepy, 5=very alert)
Activity Data
ID Number | String | Participant ID #
Date | Date/Time | Date of log entry
Activity | String | Type of activity (S=sleep, P=personal time, C=commute, W=work, L=limbo, I=Interim Release)
Start time | Date/Time | Date and start time of activity entry
End time | Date/Time | Date and end time of activity entry
Sleep location | String | Sleep location for sleep entries (A=away from home sleep, H=at home sleep)