1. Booking Sheets Rise & Fall Method

2. Recording your levels – Rise & Fall Method – copy readings on a piece of paper BM –1st reading taken was 2.250 (this is a back sight) (D) Last reading taken was .486(which is a foresight) (C) 5th reading taken was 2.400( a foresight) 2nd reading taken of 2.825 (this is a intermediate site) BM C D A (B) 3rd reading taken was 1.976(which is a foresight) (C) 6th reading taken new instrument position was 1.880 (which is a back sight) B (B) 4th reading taken new position of instrument was 2.120 (which is a back sight) Now we’ll have a look at how they go onto a booking sheet Triangles indicate instrument positions Letters indicate staff positions

3. Completed booking sheet example

4. First Remember the rules for completing the booking sheet The first reading you take is always a Backsight (BS) The last reading you take is always a Foresight (FS) The readings you take in between are Intermediate sights (IS)

6. back sight at BM first

7. Then intermediate site, one line down

8. Then foresight one line down again

9. Then our instrument is moved (c.p. change point), our first reading from here is a backsight, but still goes on the line for staff reading B – etc. complete the rest

11. This is simply deducting one reading from the previous and posting the answer in the rise & fall column

14. Total the columns

15. Take FS away from BS

16. Take Fall away from Rise

18. eg. 47.195 - .575 = 46.620

19. 46.620 + .849 = 47.469 and so on

20. Now calculate the RL

22. Take the last RL away from the firstAgain All Answers should EQUAL !

23. Review the completed booking sheet