The story of the Vanhool begins with the retirements of the electric Technobus that was running in the old Quebec. RTC needed something to replace those bus has they seems to have horror of 40 footers running in the old city, to be fair they is few roads that welcome huge buses and it's only take a badly park delivery truck, coach or car with a Quebec plate beginning by the letter F - read here rental car. The shorter bus (32 ft) and narrower bus (96 ft) should reduce the number of times service must be diverted out of the old city.
The big problems was the following, the government at the top of the hill want to show they are green, at all cost possible, so the RTC wanted hybrid bus, however, as you know y'all, no such product exist in the north American market (diesel or full electric only), so Vanhool was the only company that bet on that contract, so they were awarded it. [personal opinion mode begin ] However, since the product did not exist at the time, Vanhool needed a sizable order to make profits and the RTC needed a sizeable order so someone would provide the bus, and considering the mayor seems to have close relations with the company. This is also IMO the reason why the order was bumped up from 32 to 64 units [end personal opinion mode ]
Routes 11 was slated to receive those bus as this is the old Quebec route, route 19 also was in the plan as generally only a few passenger ride that route, that would require maybe 12 to 15 units to service both route. Now with 64 units, buses will be allocated on many low ridership routes BUT this will have a effect on RTC flexibility has those buses will be require to stay during rush hours on low ridership routes, preventing economy by interlining routes, off peak and weekends most local routes can operate with a Vanhool without capacity problem