Keywords : railway survey, new railway survey, Airborne lidar survey, Power transmission line, Route Planning , Line Construction, Optimization route,Catenary analysis, Identification of tower construction sites, Vegetation Enchoachment management, Change detection, As built survey..

To construct anything haphazardly is not engineering. Prior to survey the available maps of proposed area are studied. This helps in fixing suitable alignment facilitate various surveys work. The various engineering surveys which are carried out for the choice of route of a new railway line survey can broadly be divided in to three categories.

1. Reconnaissance Survey

2. Preliminary Survey

3. Location Survey

A reconnaissance survey is the first engineering survey which is carried out in territory which has not been previously surveyed for the purpose of laying a new railway line. The main objects of reconnaissance survey are as follows:

* To obtain a general knowledge of the whole territory and

* To obtain information regarding the salient feature of the territory.

The information are generally gathered in the following two categories

1. Traffic Reconnaissance Survey

2. Engineering Reconnaissance Survey

The object of preliminary survey is:

* To conduct the survey work along the alternative routes (found out by reconnaissance survey) with the help of theodolite and leveling instruments

* To determine the greater accuracy the cost of railway line along these alternative routes involving cost of removing obstruction, construction of bridges etc.

To decide the most economical and efficient route

It is the final survey used to locate the centre line of the railway line the main object of this survey is to carry out the detaile3d survey along the route which has been fixed as the most economical route from the data of preliminary survey.

Work of Location Survey

The location survey is carried out in two stages

1.Paper Location

2.Field Location

Total Station

Topographical Survey

Property Survey

Setting Out Works Survey

Power Line Survey Survey

Railway survey

Hills survey

Minning survey

Road survey

Airport survey

Airforce NOC survey

UAV survey

Lidar survey

Pipeline survey

Power survey

Roperty survey

Geo Technical survey

Utility survey

Control Point survey

Route survey

Airport survey

Special survey

Contour survey

Levelling survey

Railway Project survey

Interior survey

Building survey

Road survey

Township survey

Drone survey

Drone Aerial survey

Drone survey

GBS survey

GPS Control Survey

Engineering survey

Transmission Line survey

Dam and Lake survey

Layout survey

Boundary survey

FMB Drawing survey

Canal survey

Marking survey

Layout Marking survey

Columns Marking survey

Excavation Points Marking survey

Pile Marking survey

Building Outer Lines Marking survey

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