Interview Protocol

Form Approved

OMB No. 0920-XXXX

Exp. Date xx/xx/20xx

Interview Protocol

1. Demographics

   1. Age

   2. Current position

   3. Total mining experience

   4. Experience at current mine

   5. Experience in current position

   6. Experience with this mobile proximity detection system

2. Proximity

   1. What do you like about this mobile proximity systems?

      1. PROBE: Can you give me three specific features?

      2. PROBE: What is the easiest task? What can you do without thinking?

   2. What don’t you like about this mobile proximity system?

      1. PROBE: Can you give me three specific features?

      2. PROBE: What is the most difficult task? What is frustrating?

   3. How did you to learn how to use the mobile proximity system?

      1. PROBE: Did someone show you? Who? When?

   4. Can you imagine a situation where the mobile proximity system could put you in danger?

      1. PROBE: Why did the system fail? What about the system failed? What did you know that the system did not?

   5. What would you change about the mobile proximity system?

      1. PROBE: What would be your ideal proximity system?

6. How confident are you that the system will prevent a collision?

0	1	2	3	4	5	6	7	8	9	10
Never					50/50					Always

7. Overall, how confident are you in this mobile proximity system?

   0%

   10%

   20%

   30%

   40%

   50%

   60%

   70%

   80%

   90%

   100%

1. If time permits

   1. Do you have any other experience with proximity detection in general?

      1. PROBE: Other brands? Other Equipment? On the surface?

   2. If so, how does this mobile proximity system compare?

      1. PROBE: Is it more reliable? Does it provide better feedback?

Public reporting burden of this collection of information is estimated to average 10 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. An agency may not conduct or sponsor, and a person is not required to respond to a collection of information unless it displays a currently valid OMB control number. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to CDC/ATSDR Information Collection Review Office, 1600 Clifton Road NE, MS D-74, Atlanta, Georgia 30333; ATTN: PRA (0920-XXXX).