Survey Railway Projects Services
₹ 500/Square MeterWe are ranked amongst the trusted firms engaged in providing a wide range of Railway Project Survey Service. Justification of Constructing New LineWhen the question of constructing a new railway line between some places arises due to public demand or some other reason, an intensive study is carried out as regards viability of the project.
The following points should be kept in mind while considering the justification of constructing a new line
Total population of the villages, towns, industrial places, etc, coming under the project, should be recorded.
The standard of living and habits of the population, and the economic conditions of the locality, should be thoroughly studied as it will be a source of revenue for the department.
The amount of agricultural, natural and industrial resources should be recorded.
Information regarding religious places, religious fairs of festivals, business centers, etc. should be noted.
The amount of revenue that may accrue from passengers, agricultural goods, industrial goods, natural resources, etc. should be estimated.
A topographical map should be studied to determine the number of culverts, bridges, level crossings, tunnels, etc.
An agricultural map should also be studied so that too much valuable land is not affected.
A contour map should be studied in order to ensure economical alignment, avoiding unnecessary cutting or filling and maintaining a permissible gradient.
An Industrial map should be studied to find the shortest route to connect industrial areas.
Marking of Tentative Alignment- After the decision to set up a new railway line is taken, tentative alignments of alignments are marked on the contour map and topographical map for the area concerned. While marking the tentative alignment, the following points should be kept in mind:
The route should be the shortest possible.
As far as possible, it should follow the ridge line to avoid unnecessary earth work in filling.
It should cross rivers perpendicularly.
It should not pass through religious places, such as temples, mosques, churches etc. or burial grounds, burning ghats, and so on.
The route should not pass through the centres of villages, towns, valuable structures, etc. where the compensation payable is likely to be more.
It should not be too zigzag, so that the number of curves is minimized.
It should not cross large depressions or valleys, high summits or ridge lines, to avoid huge earth fillings in areas of depression and tunneling in regions including summits.
The tentative alignments of two routes should be marked for comparing costs of construction, feasibility, advantages, etc.
Along the tentative alignments. The survey should be conducted for collecting the following data:
The magnetic bearings of the lines of the alignment are measured by prismatic compass, and the distances are measured by pacing (i.e stepping) and noted in a field book.Approximate positions of different objects and the nature of the ground are noted in the field book, for a strip of land covering above 100 m on both sides of the alignment,A soil survey should be conducted along the alignmentBoring should be done along the alignment to know the nature of the water table.The slope or undulation of the ground should be determined by Abney level or hand level.The number of crossing points, like roads, rivers, canals, etc. should be noted. Detailed information regarding these points should be recorded, so that it is possible to design suitable structures to cross them.The number of curves and difficulties in curve setting , if any, should be clearly noted.