The following Things are to be consider before location of Highway

1. Economic importance

2. Hazard to people in the area

3. Recognniasce survey

4. Traffic volume

Highway location survey is the systematic method of determining the relative positions of various geometric features including curves, grades, elevations, design speed etc with reference to an existing benchmark eg oceans mountains taller etc

The aim of Highway survey is to select a route with the following points kept in mind

1. To produce an easy riding or traveling Flowing surface that has a high capacity and with all safety standards

2. With reasonable economy it should meet the minimum requirements regarding curvatures and grades

3. It should recognize and evaluate the route impact on already existing industries business and residential values and future developed

Before location survey for any Highway is started tentative decisions regarding the design speed of the route it's cross section and the maximum grade must be made.

Decisions made of these on the following

1. Estimate amount, character and and hourly distribution of traffic

2. Knowledge of the area to be tries rest

3. Government interference

4. Available funds

Give results of the comparison of the different routes design possible the route is selected which has the cheapest overall Coast considering capital Investments maintenance expenses and saving to the road users

The following desk study of the highway of an area includes

Maps, aerial photographs charts/graphs, to obtain environmental, engineering, economic, and social data

Engineering got includes

a. The pump graphic Angelo school maps

b. Streaming drainage be easy maps

C. Climatic records

D. Preliminary survey maps of previous project

E. Traffics survey and capacity study

Environmental data

1. Agricultural soil survey including soil erodibilty

2. Air pollution

3. Fish and wild life inventory

4. Historical studies

5. Noise and noise attenuation studies

Social data

I. Census data

Ii. Demographic and land use information

Iii. Zoning plans and trends

Economic data to obtain

I. Overall cost of previous projects

Ii. Unit construction cost data 

Iii. Agric economic and industrial data