The route is the primary corridor between Montreal, which is less than  from the border, and New York City. The crossing is among the busiest in the US; more than two million travelers use it annually, including more than half a million during July and August.
Montreal, being near the border, connects directly with New York City through this route. It's one of the busiest crossings in the United States; more than two million people travel through it each year, with over half a million using it especially during July and August.