I'll answer in part, and then Vincent will jump in.
With respect to high frequency and high speed, part of the design of a process is to allow the market to determine which one would work better. I think we've set out objectives in terms of shortening journey times and achieving higher speeds in the corridor. What the response will come back with is a solution that may integrate high speed or rest solely with high frequency.
I think, at the end of the day, the resulting project will improve rail service, have faster journey times and serve more communities than are served currently. As Vincent said, there will be a marked increase in passengers using rail.