Accessibility - Proximity to Stops
Factors Affecting Heatmap Generation
Proposed BRT Routes (July 2018)
Integral of Butterworth Filter
DAs for Saskatoon
This file shows the DAs for Saskatoon. The markers show the DA population, and the marker tooltips show the DA IDs. The light blue polygons were used to clip the large DA polygons on the outskirts of the city. The green polygons show the clipped area used for these DAs.
BRT Routes
This file shows all the BRT routes in the datafile obtained from the City of Saskatoon. Here are the same routes in a City supplied Website
However, the routes in the city supplied data do not contain all stop information, as shown in this example of the BRT Green Inbound route.
Example Bus Stop DA Intersection
This is an example of the intersection between a 400m circular buffer and the DA boundaries. The markers are at the centroids of the intersecting polygons.
Click here
Example DA Bus Stop Intersection
In the traditional 2sfca algorithm, Langford used any bus stop that falls within a buffer around the DA centroid (check this?).
Here, we use a different approach. We detect intersections between the DA and bus stop buffers, as shown in the above example for DA 47110114. The markers show the centroids of the intersecting polygons. (There is a section of this DA that has no intersecting polygons and thus is not served by any bus stops). The resulting intersecting polygons represent a section of the DA within the bus stops buffer, and therefore served by the stop, even though the stop is located outside the DA. Some parts of the DA are not served by the stop. The distance used to compute service decay is not the distance from the DA centroid to the stop, but rather the distance from the intersecting polygon to the stop.
The score at any point within the DA is sum of the scores of the intersecting polygons at that point. It is difficult to find all the combinations of the intersections of the intersections. However it is simple to sum the polygon scores at any given point. Therefore we generate and apply raster points and compute the score at the raster points.
Pages
Walkscore (Edit)
Effect Of Decayed Wait (Edit)
Integral Of Butterworth Filter (Edit)
Delete (Edit)
Frequency Vs Coverage Model (Edit)
Suburban Connector 33rd St Confed OB Westbound (Edit)
Suburban Connector 33rd St Confed IB Eastbound (Edit)
Suburban Connector North Industrial Lawson Ib (Edit)
Suburban Connector Confederation B IB (Edit)
Suburban Connector Confederation A IB (Edit)
Suburban Connector 8th St Belt B CW (Edit)
Suburban Connector 8th St Belt A CW (Edit)
Suburban Connector U of S University Heights OB Eastbound (Edit)
Suburban Connector U of S University Heights IB Westbound (Edit)
Suburban Connector 22nd Street Belt IB CCW (Edit)
Crosstown Willowgrove Stonebridge OB Northbound (Edit)
Crosstown Willowgrove Stonebridge IB Southbound (Edit)
Crosstown Lawson Stonebridge OB Northbound (Edit)
Crosstown Lawson Stonebridge IB Southbound (Edit)
Crosstown St Pauls OB Eastbound (Edit)