Our new roads and railways are costing about 8 times the average for other countries in Europe. The very high cost of such infrastructure means other areas of infrastructure like minor roads are not not repaired; walking and cycling routes are often in a poor state; pedestrianisation is not being maintained or extended where most needed. This article, see link, makes a major challenge to the idea that national infrastructure is affordable, or that much of it is necessary investment at all. Steve Dawe writes with support from Hazel Dawe:

National infrastructure: notional benefits?