One thing I'd like to see when the Port Mann is twinned and hwy 1 widened is to have a dedicated bus lane in each direction, and these lanes would run on the opposite side of a concrete barrier to isolate the lane from the regular traffic flow so the buses would just pass by any collision or stall.
With this you could address transit service where skytrain isn't available(i.e. Langley/Fort Langley, parts of Surrey that skytrain isn't) and this would be an express service right into Vancouver.
If Translink wants people to use transit for their commute to and from work build the system first before rambling on about getting people out of their cars.
Like I said before these skytrain lines should have been built 10 years ago when costs were lower and there was less traffic on the roads to disrupt. People should have been using foresight and seeing the tri-cities and fraser valley populations growing at rapid rates.