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Route Survey Of The Stretch Of Road From Oriawo Along Ogbomoso Road, Oyo To School Of Science, Sabo Oyo Town, Atiba Local Government Area, Oyo State
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3.2.3 CONTROL CHECK
The essence of carrying out this operation is to ascertain the reliability of the controls. This check involves both the angular and linear measurement using the Theodolite Instrument.
From the diagram below, the instrument was setup on FSS2/GPS/120 and the back and fore targets was set up on FSS2/GPS/121 and FSS2/GPS/118 respectively. All temporary adjustments were carried out (centering, leveling, and focusing). The telescope of the instrument was turned to face back station target and horizontal circle reading was recorded.
The instrument was turned clockwise to fore station target and bisected with telescope on the same face and reading was recorded. Thereafter, the face of theodolite was changed by transiting the telescope and the fore target was bisected. The back target was also re-bisected at face right and also the horizontal circle reading was recorded.
This is the control check to which the job was tied. The Theodolite and EDM reading as well as the angle reduction were shown in the table below:
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTTheproject was focused on the execution of route surveying for the purpose of road reconstruction from Oriawo along Ogbomosho road, Oyo to School of Science, Sabo Oyo Town. Stations were selected along the existing route at regular intervals as in the specificationsTheodolite traverse was run over stations, while levels were observed along the longitudinal and cross-sections of the traverse lines. All data were gathered with effective orientation from the controls, these were used to pro ... Continue reading---
APPENDIX A - [ Total Page(s): 1 ]FEDERAL SCHOOL OF SURVEYING, OYO FinalProject On Route Surveying ... Continue reading---
LIST OF TABLES - [ Total Page(s): 1 ]LIST OF TABLESTable 3.1: Coordinates of existing ground controls used Table 3.2 Collimation test Table 3.3: Initial control check observation. Table 3.4: Back computation of initial control used Closing control check observation. Back computation of initial control used Table 4.1 Sample of Horizontal angle reduction Table 4.1 Back computation of traverse pegs ... Continue reading---
LIST OF FIGURES - [ Total Page(s): 1 ]LIST OF FIGUREFigure 1.1: Study Area diagram Error! Bookmark not defined.Figure 3.1 Recce Diagram Figure 3.2: Leveling instrument set up mid-way (first set-up) Figure 3.3: Leveling instrument set up( second set up) Figure 3.4 Initial control check observations Figure 3.6 A typical monument used Figure 3.7: Longitudinal sections leveling. Figure 3.8: Cross-sectional leveling. Fig.: 3.9 – Illustration of detailing by tachometer method ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 1 ]TABLES OF CONTENTSTITLE PAGE CERTIFICATE CERTIFICATION DEDICATION ACKNOWLEDGEMENTS ABSTRACT LIST OF FIGURE LIST OF TABLES CHAPTER ONE 1.0 INTRODUCTION 1.1 BACKGROUND TO THE STUDY 1.2 STATEMENT OF PROBLEMS 1.3.0 AIM AND OBJECTIVES OF THE STUDY 1.3.1 AIM 1.3.2 OBJECTIVES 1.5 SCOPE OF THE PROJECT 1.6 PERSONNEL 1.7 STUDY AREA CHAPTER TWO 2.0 LITERATURE REVIEW RECONNAISSANCE PRELIMINARY SURVEY LOCATION SURVEY OFFICE LOCATION: - CHAPTER THREE ... Continue reading---
CHAPTER ONE - [ Total Page(s): 3 ]CHAPTER ONE1.0 INTRODUCTION1.1 BACKGROUND TO THE STUDYEngineering Surveying is one of the branches of surveying which from the general express for any survey work carried out in connection with construction engineering and building project, it is a large scale topographical map survey which the basis for design of engineering works such as highways, railways, canals, tunnels, dams, pipelines and transmission lines.In the word of engineering and environmental studies, surveying has been recognize ... Continue reading---
CHAPTER TWO - [ Total Page(s): 3 ]Traverse is a sequence of connected straight lines whose direction and distances have been measured. Traverse is also the process of connecting series of lines with known bearings and distances. It is subdivided into first order for precise measurement and second order for the establishment of secondary controls while the third order is meant for survey of tertiary and topographical features.Basak (2000) explained leveling as the art of determining the relative vertical heights of different poin ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 5 ]CHAPTER FOUR4.0 DATA PROCESSING AND RESULT ANALYSIS This involved calculations that are based on acquired data from the field observation to determine locations, direction, height, distance and area etc. some specific formulae were employed for each data set depending on the desired end products and great degree of precision was required.4.1 FIELD BOOKS REDUCTIONS Every field book was reduced to generate the final data set to be used in the final computation4.1.1 ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVE5.0 SUMMARY, RECOMMENDATION AND CONCLUSION5.1 SUMMARYThe reconnaissance, which was the main planning, was carefully carried out because of its importance to good execution of any survey project or work. Having carried out the reconnaissance, six (6) second order control stations were located and used as connection along the given route. The total number of nineteen (19) stations excluding the controls where the angles and distances were determine by a closed traverse met ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESBANNISTER AND RAYMOND (1977) Surveying: 4th Ed, Pitman Publishing Ltd, London. Pg. 205BASAK, N.N (2000): Surveying and leveling, Tata Mchraw Hill publishing company Delhi, p.173, Pp.439-444.BRINKER, R. C. AND MINICK, P. R. (1987): Elementary Surveying, 6th Edition IEP- A Donnseley New York. Pg. 3CLARK, DAVID (1972): Pane and Geodetic surveying for Engineers, 6th edition, vol.1, London: Constable and Co. Limited, pg.144 IDEMUDIA, I.M. (2007):â€Right of Way and Acquisi ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTTheproject was focused on the execution of route surveying for the purpose of road reconstruction from Oriawo along Ogbomosho road, Oyo to School of Science, Sabo Oyo Town. Stations were selected along the existing route at regular intervals as in the specificationsTheodolite traverse was run over stations, while levels were observed along the longitudinal and cross-sections of the traverse lines. All data were gathered with effective orientation from the controls, these were used to pro ... Continue reading---