Drive time and walk time selection based on polygons

[KeithHenderson]

It appears that the selection of analysis areas for drive and/or walk times in Business Analyst are only available for an area based on the selection of a point.  The feature should also allow the use of a polygon.  A practical example would be where we want to provide walk time analysis of businesses that surround a Central Business District.  For a small CBD, point analysis may be sufficient.  However, imagine a large, linear CBD that might be 20 block long.  Using a point or a few points will not produce an accurate result.  It would seem that this could be easily overcome with basic code that would allow an existing polygon to be chosen, instead of a point, and then have a script automatically create the desired areas of analysis based on the following example:  Identify points on the polygon that  intersect with road centerlines;  Generate 5, 10 and 15-minute polygons based on those points; and finally, merge those 5, 10 and 15-minute polygons into one set of 5, 10 and 15-minute polygons that would in turn be used in the street-network ‘Dijkstra algorithm’ which I guess is part of what is located within the BA – Application Data file to generate output reports.