Highway & Road survey

Reconnaissance survey refers to a field survey team’s examination of the basic characteristics of a relatively large length of land between terminal stations, following possible alternative routes depicted on the map.

In this survey, simple surveying tools such as a prism compass, Concourse levels, tangential meter stick, and barometer may be utilised to quickly acquire more information.

OBJECTS

To collect information on obstacles along the path that are not depicted on the map. Valleys, ponds, lakes, wetlands, ridges, hills, permanent structures, etc.

To gather geological characteristics of the field. Example: Soil type along the route as determined by field identification tests and needed observation for bridge foundation work and road pavement construction.

Collect data on the accessibility of local building materials, water, and labour.

To compute the approximate gradient, gradient length, and curve radius of alternative alignments.

To identify the required spots along the other routes.

To get a rough estimate of the overall cost of road building along each route.

To identify two or three optimal paths.

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