ASDE Samples

ASDE Survey Sampler takes great pride in the quality of its services and products. We offer a wide variety of samples and related services to survey specialists.

Radius / Corridor Samples

Radius / Corridor Samples

Radius and Corridor samples offer a more specialized approach and are geometric in nature.

 

Radius samples

 

The radius sampling method provides a sample of listed phone records, randomly selected from Postal Codes or Zip Codes whose centroids are located within a specified distance from any geographic target coordinates in the US or Canada.

 

 

 

Corridor Samples

 

The corridor sampling method provides a sample of listed phone records, randomly selected from Postal Codes or Zip Codes whose centroids are located within a specified distance from a line on a map. The target coordinates define the extremity of the line or corridor. This can be a road or section of a road represented by two sets of coordinates.

 

 

 

 

For a PDF version of this information please refer to the link in the Resources section on this page.

 

 

For your research project and survey needs, contact us today to order your sample!

 

 

Resources :

 

pdf RADIUS AND CORRIDOR METHODOLOGY