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The sequence of survey in a road project is
- a)topographic, reconnaissance, preliminary and detailed
- b)reconnaissance, topographic, preliminary and detailed
- c)preliminary, reconnaissance, topographic and detailed
- d)topographic, preliminary, reconnaissance and detailed
Correct answer is option 'A'. Can you explain this answer?
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The sequence of survey in a road project isa)topographic, reconnaissan...
Topographic map
This is the first step of the Engineering survey, using a topographic map of the area under consideration, which can be availed from the Survey of India, we can propose different alternatives of the road alignment.
This topographic map in general have a contour interval of around 30 m to 40 m.
Reconnaissance Survey: So in the second phase/step a survey team is headed to the area under study with the minor surveying instruments like Abney level, Tangent Clinometer etc. to do a rough survey of the area under study.
The rough survey is done along the alternatives proposed in the map study and feasibility of the road alignment is checked along the different routes. Some of the routes may be cancelled out or they may be changed if they appear to impossible in this study. So finally they will have a set of routes which are to be further studies in the next step.
Preliminary Survey: In this step the alternative routes which are proposed after a rough survey in the second step are surveyed in details using some advanced instruments like levels, chain and theodolite. Aerial Photogrammetry is best suited for this type of survey.
All the necessary details to carry out the comparative study of the different routes are collected and then finally we have to decide one alignment best suited for the alignment of the road.
Detailed Survey: In this part we have carry out the detailed study of the final route using some very precise instruments like Theodolite and Chain to gather all the necessary data for the final estimation, design and preparing drawings using which the construction can be started. A detailed project report is to be prepared and all the necessary data is collected to prepare that report.
So, the profiling, cross-sectioning and soil investigation are carried out very precisely. CBR values are also found to find out the design thickness of the pavement. After collecting the data a final drawing a report is prepared which concludes the highway planning part.
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The sequence of survey in a road project isa)topographic, reconnaissan...
Sequence of Survey in a Road Project
The sequence of survey in a road project is:
1. Topographic Survey
This survey helps to determine the existing features of the land. The surveyor will map out the contours of the land, the location of existing buildings, trees, fences, and other structures. The topographic survey will also identify the location of any watercourses, drainage ditches, and other water features.
2. Reconnaissance Survey
This survey is carried out to gather general information about the proposed road alignment. The surveyor will walk along the proposed road alignment and identify any obstacles, such as hills, rivers, and other natural features that might hinder the construction of the road. The surveyor will also take note of the location of existing roads and buildings that might be affected by the new road.
3. Preliminary Survey
This survey is used to determine the best possible road alignment. The surveyor will use the information gathered from the topographic and reconnaissance surveys to identify possible road alignments. The surveyor will also take into account the cost of construction and the impact on the environment.
4. Detailed Survey
This survey is carried out to provide detailed information about the road alignment. The surveyor will mark out the exact location of the road, including the width and depth of the road, the location of culverts, drains, and other structures. The surveyor will also mark out the location of any trees, buildings, or other structures that need to be removed or relocated.
Therefore, the correct sequence of survey in a road project is option 'A': topographic, reconnaissance, preliminary, and detailed.
The sequence of survey in a road project is:
1. Topographic Survey
This survey helps to determine the existing features of the land. The surveyor will map out the contours of the land, the location of existing buildings, trees, fences, and other structures. The topographic survey will also identify the location of any watercourses, drainage ditches, and other water features.
2. Reconnaissance Survey
This survey is carried out to gather general information about the proposed road alignment. The surveyor will walk along the proposed road alignment and identify any obstacles, such as hills, rivers, and other natural features that might hinder the construction of the road. The surveyor will also take note of the location of existing roads and buildings that might be affected by the new road.
3. Preliminary Survey
This survey is used to determine the best possible road alignment. The surveyor will use the information gathered from the topographic and reconnaissance surveys to identify possible road alignments. The surveyor will also take into account the cost of construction and the impact on the environment.
4. Detailed Survey
This survey is carried out to provide detailed information about the road alignment. The surveyor will mark out the exact location of the road, including the width and depth of the road, the location of culverts, drains, and other structures. The surveyor will also mark out the location of any trees, buildings, or other structures that need to be removed or relocated.
Therefore, the correct sequence of survey in a road project is option 'A': topographic, reconnaissance, preliminary, and detailed.
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The sequence of survey in a road project isa)topographic, reconnaissance, preliminary and detailedb)reconnaissance, topographic, preliminary and detailedc)preliminary, reconnaissance, topographic and detailedd)topographic, preliminary, reconnaissance and detailedCorrect answer is option 'A'. Can you explain this answer?
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