In 2021, a group of independent advisors to the HFR project worked on estimating the number of people who would use the new services in the Windsor-Québec corridor. To do this, they had to perform several activities: Identify where it could be reasonable to build the new dedicated rail infrastructure so that people could travel faster between cities. Identify any technical problems that might arise when building and running the new rail service. Collect information about how people currently travel between cities and how often they do it. They looked at travellers who use automobiles, trains, planes, and buses. Study the different route options to understand the strengths and weaknesses of each one (cheapest, fastest, most reliable, and most convenient for people). Survey people who currently travel by train, or who might be interested in traveling by train, to identify what factors influence their travel choices. Examine how often the trains could be run and how much it will cost to ride them. Investigate past travel patterns and use this information to predict how many people will travel in the corridor in the future. They considered indicators such as changes in population, economic activity and technology. Use computer models to estimate how many of them could start using the new rail service instead of driving, flying, or taking the bus. As the planning and definition of the project progresses, the Integrated HFR Project Team is constantly reviewing and revisiting these estimates to ensure forecasts are up to date.