Best interpolation tool for transport nodes?

[ImanolDiaz_de_Zerio_Saiz]

Hi,

I am an student and I am working on a final grade proyect, and I am looking for a the best tool to make an interpolation.

First thing, I had the metro and bus nodes (shape(point)) with their level of importance depending on the number of travelers.

I would like to get a shape (polygon) with areas of importance.

Which is the best interpolation tool to get this layer?

Thanks in advance,

Imanol Diaz de Zerio

[DanPatterson_Retired]

interpolation is not the tool.  Your bus stops are fixed in space...by interpolation you will be calculating  Z values (number of travellers) for locations (X, Y) that don't have / can't have bus stops.  There a variety of things that you can do, all of which depends upon your ultimate goal