Booking Sheets

Rise & Fall Method

M.S.Martin

Original, May 2004

Revised, July 2005

M.S.Martin

Original, May 2004

Revised, July 2005

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)

(A) 2nd reading taken of

2.825 (this is a intermediate site)

(B) 3rd reading taken was 1.976 (which is a foresight)

(B) 4th reading taken new position of instrument was 2.120 (which is a back sight)

(C) 5th reading taken was 2.400 ( a foresight)

(C) 6th reading taken new instrument position was 1.880 (which is a back sight)

(D) Last reading taken was .486 (which is a foresight)BM

A

B

C D

Now we’ll have a look at how they go onto a booking sheet

Triangles indicate instrument positions

Letters indicate staff positions

Completed booking sheet example

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

4862

1388

855

1388

Completing the sheet – step 1

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

4862

1388

855

1388

• First lets complete the readings in their apropriate boxes

• back sight at BM first

• Then intermediate site, one line down

• Then foresight one line down again

•Then our instrument is moved, our first reading from here is a backsight, but still goes on the line for station B – etc. complete the rest

• In the remarks column you can also note the station referance, A,B,C, etc.

Completing the sheet - step 2

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

4862

1388

855

1388

• Next calculate the rise and fall

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

• eg. 2.250 – 2.825

= negative .575

• Negative results are falls

• Positive results are a rise

Completing the sheet – step 3

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

4862

1388

855

1388

• Next calculate the RL

• BM is given at 47.195, put this into your calculator

• Next work your way down the readings, either deduct the fall or add the rise

• eg. 47.195 - .575 = 46.620

•46.620 + .849 = 47.469 and so on

Completing the sheet – step 4

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

48621388

8551388

• The last step is to balance the sheet

• Total the columns

• Take FS away from BS

• Take Fall away from Rise

•Take the last RL away from the first

• All Answers should EQUAL !

Review the completed booking sheet

BS IS FS RISE FALL RL REMARK

2250 47.195 BM

2825 575 46.620 A

2120 1976 849 47.469 B

1880 2400 280 47.189 C

486 1394 48.583 D

6250 4862 2243 855 1388

48621388

8551388