Just as an exercise, how long would it take R to get to work in Blackburn South? It takes him between 35 and 40 minutes now door to door in his car.
I am assuming everything will run to time, there not be cancellations and that he will arrive at work at 7.00am, as he now does. Obviously he now leaves home at 6.20 to drive to work.
Here is the pick, arrive 7.03 at his workplace.
He would leave home no later than 5.50 to catch a tram to Flinders Street Station. He would catch the 6.08 Lilydale train then change to a bus at Box Hill and after a ten minute wait, would catch the 732 bus to his work, alight at work at 703.
40 mins by car, 1hour 13 mins by public transport. I thought it might have been worse than that, but even so, going by public transport is really not a viable option for him.