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Once the details of the natural and artificial features of the area are acquired using the topographic survey, the number of alternatives for the road alignment is suggested by our team at KONGUNADU SURVEYOR.

To do a rough survey, the Alignment Planning Survey services team in Coimbatore heads to the area under study with the minor surveying instruments like Abney level, Tangent Clinometer, etc. and then later it is surveyed in detail using some advanced instruments like levels, chain, and theodolite and Aerial Photogrammetry.

The work steps carried out by the Alignment planning survey at KONGUNADU SURVEYOR involve importing current alignment data, regulating the connecting points, conceiving an alignment data for the designed area, adapting of new alignment survey to lessen displacement work on-site, setting the turnouts, and checking the alignment calculations.

Initially, the requirements for Alignment Planning Survey are checked by our surveyors for safety as the alignment must be free from danger during construction, execution, and maintenance, exclusively at slopes, hills, and waterways.

FACTORS CONTROLLING HIGHWAY ALIGNMENT PLANNING SURVEY

Based out of Coimbatore, our Highway Alignment planning survey services have a checklist on the various factors regarding geometric design such as the radius of the curve, sight distance, and gradient. As the highway road project requires a huge investment, the government should have an evidence of the when, what, how, and why to construct the road.

The highway alignment should be regulated by the obligatory points, positive and negative obligatory points. The cost of construction should be reduced by linking the newly constructed road to the existing road. If there is an intermediate town, the roads need to be linked without much change in the alignment. The alignment may also be changed to include the bridge in the road portion without the road not being curved. When the road has to cross a row of hills, the suitable alternative may be a mountain pass.

Valleys, ponds, and marshy land have to be avoided, Religious places cannot be destroyed for fixing the road alignment, and Costly structures present in the way of alignment should be considered. The alignment should be according to the traffic amount and flow pattern and needs to be fixed such that there are fewer cross drainage structures. Setting the straight alignment leads to monotonous driving and is dangerous, so a small bend is provided to make the driver aware and alert.

All the basic details needed to carry out the study such as Soil investigations, cross-sectioning and profiling, marine surveying, hydrology data collection, obligatory points, industries, and population surveys, CBR values are gathered, and then finally the best-suited alignment is decided and drawings are prepared on the sheet which concludes the highway planning part.