and 17. How Road Tolls Could Help Ease Canada's Big City Housing Crunch Builders follow roads, and provincial governments rely on fuel taxes to build and maintain the provincial road infrastructure. With improvements in fuel coonomy, there is a shortfall in fuel-tax revenue. Some economists are recommending congestion pricing Source: business financialpost.com, January 2, 2020 16. Why are fuel taxes and congestion pricing likely to be good tools to finance road infrastructure?