IMSA Work Zone Safety
Study online at https://quizlet.com/_h04kyp
1. Work zone sign in rural area 6 to 12 ft
Clear Zone (Distance from
sign to edge of traveled
way)
2. Work zone sign in business, 2 ft min
commercial, or residential
area with curb clear zone
(Distance from sign to edge
of traveled way)
3. Work zone sign in busi- 6 to 12 ft
ness, commercial, or resi-
dential area without curb
clear zone (Distance from
sign to edge of traveled
way)
4. Methods of mounting signs Flag tree, barrier, portable, tripod
other than on posts
5. Distance between signs - ur- 100 ft
ban (low speed)
6. Distance between signs - ur- 350
ban (high speed)
7. Distance between signs - 500 ft
rural
8. Distance between signs - 1000, 1500, 2640 (A, B, C)
expressway/freeway
1/7
, IMSA Work Zone Safety
Study online at https://quizlet.com/_h04kyp
9. Flashing arrow modes Flashing arrow, sequential arrow, sequential chevron, flashing
double arrow, flashing caution, alternating diamond caution
10. What does a flashing arrow Merge right
on an arrow board mean?
11. What does a sequential ar- Merge right
row on an arrow board
mean?
12. What does a flashing dou- Merge right or left
ble arrow on an arrow
board mean?
13. What does a flashing cau- Flashing caution
tion mean?
14. Arrow board type A mini- 48x24 inches
mum size
15. Arrow board type A mini- 1/2 mile
mum legibility distance
16. Arrow board type A mini- 12
mum number of elements
17. Arrow board type B mini- 60 x 30 inches
mum size
18. Arrow board type B mini- 3/4 mile
mum legibility distance
19. Arrow board type B mini- 13
mum number of elements
2/7
Study online at https://quizlet.com/_h04kyp
1. Work zone sign in rural area 6 to 12 ft
Clear Zone (Distance from
sign to edge of traveled
way)
2. Work zone sign in business, 2 ft min
commercial, or residential
area with curb clear zone
(Distance from sign to edge
of traveled way)
3. Work zone sign in busi- 6 to 12 ft
ness, commercial, or resi-
dential area without curb
clear zone (Distance from
sign to edge of traveled
way)
4. Methods of mounting signs Flag tree, barrier, portable, tripod
other than on posts
5. Distance between signs - ur- 100 ft
ban (low speed)
6. Distance between signs - ur- 350
ban (high speed)
7. Distance between signs - 500 ft
rural
8. Distance between signs - 1000, 1500, 2640 (A, B, C)
expressway/freeway
1/7
, IMSA Work Zone Safety
Study online at https://quizlet.com/_h04kyp
9. Flashing arrow modes Flashing arrow, sequential arrow, sequential chevron, flashing
double arrow, flashing caution, alternating diamond caution
10. What does a flashing arrow Merge right
on an arrow board mean?
11. What does a sequential ar- Merge right
row on an arrow board
mean?
12. What does a flashing dou- Merge right or left
ble arrow on an arrow
board mean?
13. What does a flashing cau- Flashing caution
tion mean?
14. Arrow board type A mini- 48x24 inches
mum size
15. Arrow board type A mini- 1/2 mile
mum legibility distance
16. Arrow board type A mini- 12
mum number of elements
17. Arrow board type B mini- 60 x 30 inches
mum size
18. Arrow board type B mini- 3/4 mile
mum legibility distance
19. Arrow board type B mini- 13
mum number of elements
2/7
