Activities accessible by public transport

VitaZlender

Hi there,
I would like to calculate how many different green space types (e.g. parks, playgrounds) are accessible by bus; cut-off value is 25min. I have 11 shape files with different types of green spaces (polygons). I created bus routes for each bus number. So my question is how can I calculate how many green spaces are in the accessibility range after commuting from each bus stop for 25min along every bus route?
Is Network Analyst Layer the right tool for this?
Vita

JaySandhu

You will first need to convert the polygons into "points" to make them locations of a network. You can do this either by replacing them with a centroid location OR if the park/green space is big, find the intersections with all the roads around them.

Once you have these points, you can use the OD Cost Matrix solver (or the Closest Facility) and load your green spaces as Destinations and your bus stops as Origins and set a cutoff of 25 minutes and solve. The resulting Lines sub class will have the distances to every green space "destination" and you can Summerize this table to get number of locations per bus stop (origin).

If you need the shape of the actual paths taken then you can do the same with Closest Facility, loading the bus stops as incidents and green spaces as facilities and setting a cutoff as well as max number to find equal the the total number of facilities you loaded.

Jay Sandhu