Fieldwork 1

Topics: Arithmetic mean, Statistics, Length Pages: 7 (1709 words) Published: December 30, 2012
Mapúa Institute of Technology
School of Civil Engineering, Environmental and Sanitary Engineering


Submitted by:
Name: Tutica, Empress Vanessa B. Student No. 2009123905 Group No. 7 Chief of Party: Tutica, Empress Vanessa B. Date of Fieldwork: January 12, 2012 Date of Submission: January 19, 2012

Submitted to:
Engr. B.A Cervantes


This laboratory report is all about the individual’s pace factor. It will show how to determine an individual’s pace factor and an unknown distance of a course through pacing. A pace may be measured from heel to heel. On the succeeding pages, you will learn how to measure a distance of a course by using an individual’s pace factor. It will also reveal the importance of knowing the individual’s pace factor.OBJECTIVES: 1.To obtain individual pace factor.

2.To determine an unknown distance by individual pacing.

1.2 range poles
2.Chalk (for pavements)
3.2 marking pins (for soft ground)
4.50 meter tape

A.) Determination of Individual Pace Factor (P.F.)

1. The professor measures and designates a 50m course on a level ground. (Remember to remove the tape while the students will be pacing on the course to prevent them from using the tape while the students will be pacing on the course to prevent them from using the tape as a basis for a straight course.) 2. The ends of the assigned course are marked with either hubs or marking pins or, by chalk marks if on pavements. Designate the points as A and B. 3. Set or hold range poles behind points A and B or outside the course AB. These poles will aid the students to travel in a straight path. 4. Each student should take turn pacing the course from A to B starting with heel or toe over A, keeping their eyes focus on the range pole behind point B to keep themselves on a straight path. One has to walk in their natural unaffected manner, and has to keep counting their number of paces for the entire course being covered. A partial pace at the end of the course should be figured out to the nearest one fourth of a pace. Record this as he number of paces for Trial No. 1 5. For trial No.2, each student should walk from B to A in the same manner as in the first trial. 6. Repeat steps 4 and 5 for the subsequent trials to comply with the number of trials required by the professor. 7. Data should be entered in the preliminary data sheet.

B) Determination of an unknown distance of the assigned course by pacing.

1. The professor marks the ends of a level course to be paced by each student. 2. Range poles are to be set up outside the level course to straighten the path of the student. 3. Each student paces the course with the minimum number of trials as required, recording the number of paces for each individual. 4. The professor, after all field notes shall have been submitted, assigns two students to make an actual taping of the course to determine its actual taped distance.

The computation of sample field notes is done in accordance with the steps listed hereunder:

A)Computation of P.F.
1.Get the sum of the five trials and divide this sum by number of trials to get the mean.
N = mean number of paces=sum of the number of paces
Number of trials
2.Divide the length of the course by the mean no. of paces to get individual Pace Factor P.F.

P.F. = length of course m/pace mean number of paces

B)Computation of an unknown distance and percent error.
1. Get the sum of the number of paces in each trial and divide this sum by the number of trials performed to get the mean. sum of the number of paces N = mean number of paces =

number of trials

2. Multiply the mean...
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