RESULTS
To see the area better, raster images of study area and best area are combined using the OVERLAY module (with "First + Second" option selected.) The most suitable locations are centre of Richmond, Surry, and City of Langley.
These are the appropriate locations for new transit expansion because they are where the public services concentrated. High ridership transit should have their stations built upon major destinations including transit exchanges and intense activity centers such as town centers, universities, etc so that riders from many other areas can be concentrated at one point. Density of residents and employments of a transit stop is also high correlated with transit use.
Building Skytrain stations upon these area is an expansive idea, because the three high-suitability communities are far away from each other. The transit has to cross a large low-suitability area in order to reach the high-suitability area. The ridership potential of the best area cannot cover up the cost of travelling through low-suitability area. Cost effectiveness of service cannot achieved by developing new Skytrain stations. Therefore, it is not possible to expand the Canada Line farther into the South of Fraser region with current conditions. It is better off to provide more bus service rather than limited Skytrain service.