All good questions that are not actually answered when they make those decisions. What does 'need' mean? What is the maintenance cost of maintaining two lanes o

All good questions that are not actually answered when they make those decisions. What does 'need' mean? What is the maintenance cost of maintaining two lanes of road that might be needed in 10 years? Often road widening is based on projections (which are almost universally wrong): https://www.cnu.org/publicsquare/2021/09/09/every-traffic-projection-wrong https://www.cnu.org/publicsquare/2021/09/09/every-traffic-pr...