yes - as design, expropriation, and ultimately construction staff finish with Ottawa-Montreal, they will move on to Toronto-Ottawa, and so on. It's intended so that the different groups have something they can progress their work directly into. Instead of Design having to do a 1,000km stretch all at once, they can do 200km, then hand it off to expropriation and focus on the next 400km to Toronto. Then Expropriation does their 200km, hands it off to construction before moving to the next 400km.. and so on. You don't wait for all the groups to be 100% done before starting the next part.