Im suggesting a DRL that goes to sheppard so all the scarborough residents and the immediate area North york residents use the DRL versus the yonge line. That way Yonge can grow in density which it will (Y&E, Y&L, Y&S, Y&F, 905, actually any major intersection on yonge will eventually become very dense). All the yonge residents will then use the yonge line almost exclusively. I am sure some people from bathurst and bayview will as well but thats alot different then who uses it now. I use to live at midland and finch and would end up on the Yonge line to get downtown.... Sure you can say that the DRL is only easing congestion but what it really is doing is allowing these nodes to become developed to their full potential.
as for the subway or the DRL only serving nodal trips.. Well if we keep up the pace of nodal development it is quite likely that as a result most of the trips will result in nodal trips. For instance I live close to eglinton west subway. I can use the subway to go down one station to st clair for groceries.. A soon to be nodal development.. I can go north to Lawrence square for my canadian tire fix. I can go north to Yorkdale for shopping. I can go north to downsview parc for recreation. Soon Ill be able to go to yonge and Eglinton for social outings. And I go to union for sports. There are times i uses busses and streetcars but much of my trips can be made on subway to nodal developments. I can see this only increasing in the future.